Find the better way to pay.
Compare service prices and payment options against your workload.
Scoped audits · customer usage requiredRequest a cost auditINTELLIGENCE
Know what your agents buy.
Costs, changes and evidence for better service decisions.
Know when your dependencies change.
Track payment offers, service schemas and provider changes over time.
Custom watchlists and historyDiscuss monitoringConnect the purchase to the result.
Bring charges, retries and task evaluations into one private evidence record.
Integration pilot · your task criteriaConnect your workflowTHE EVIDENCE BASE
Collected. Dated. Traceable.
14,635Source listings
33Source snapshots
27,889Recorded changes
1,221Endpoint observations
Latest snapshot: Sep 12, 2026, 05:41 UTC. Daily collection; gaps remain unknown.
1,119 observations · Differences between dated observations.
api.kadec0.xyzCompany domain enrichment. Firmographics, tech-stack detection, social profiles, and metadata for a company domain — a keyless one-call enrichment gateway.
https://api.kadec0.xyz/v1/enrich ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.15 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Company domain enrichment. Firmographics, tech-stack detection, social profiles, and metadata for a company domain — a keyless one-call enrichment gateway.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"domain": {
"type": "string"
}
},
"required": [
"domain"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
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},
"type": {
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}
},
"required": [
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],
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}
},
"required": [
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],
"type": "object"
},
"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789191719.42,
"offers": [
{
"amount": "0.15",
"amount_atomic": "150000",
"amount_encoding": "atomic_units",
"amount_raw": "150000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
"operator_identity": "not_verified",
"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "9895bd56e6d867a8f7f441d31e3c37014e6e211256019c569d02b946b0bc1b02",
"schema_fingerprint": "f5cbd210963f2d24bca858965b8e6cd27a7c7a70cea9b94b268a7d1ade346fbf",
"service_id": "844440e807c8e29b0e0f52868710c23caa6f68ca774e343f2593824c8ea40582",
"source": "cdp-bazaar",
"source_updated_at": "2026-08-22T13:09:21.366Z",
"url": "https://api.kadec0.xyz/v1/enrich",
"usage_rights": "not_reviewed"
}api.kadec0.xyzUS congressional stock trades. Stock transactions disclosed by members of the House and Senate under the STOCK Act — politician, ticker, amount, and date.
https://api.kadec0.xyz/v1/congress-trades ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.05 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "US congressional stock trades. Stock transactions disclosed by members of the House and Senate under the STOCK Act — politician, ticker, amount, and date.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
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"properties": {
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"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"chamber": {
"enum": [
"house",
"senate"
],
"type": "string"
},
"dateRange": {
"description": "YYYY-MM-DD..YYYY-MM-DD on transaction date",
"type": "string"
},
"maxItems": {
"default": "50",
"type": "string"
},
"politician": {
"description": "filer name substring",
"type": "string"
},
"ticker": {
"description": "stock ticker, exact",
"type": "string"
},
"type": {
"description": "transaction type substring e.g. purchase|sale",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
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"type": "string"
}
},
"required": [
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],
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}
},
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},
"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789191719.42,
"offers": [
{
"amount": "0.05",
"amount_atomic": "50000",
"amount_encoding": "atomic_units",
"amount_raw": "50000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
"operator_identity": "not_verified",
"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "9895bd56e6d867a8f7f441d31e3c37014e6e211256019c569d02b946b0bc1b02",
"schema_fingerprint": "5547417c46de9560581a3bd22202bf5610f2841c058816d41bf057d31ce7c0d5",
"service_id": "89a60ee58786a4e0968119b5beab21a20b75d13d1751249a2f25884a620d6bd6",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-11T23:35:28.466Z",
"url": "https://api.kadec0.xyz/v1/congress-trades",
"usage_rights": "not_reviewed"
}api.kadec0.xyzReal-time earthquake feed. Recent seismic events from USGS with magnitude, location, depth, and tsunami flag, filterable by magnitude, time, and radius.
https://api.kadec0.xyz/v1/usgs-quakes ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.005 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Real-time earthquake feed. Recent seismic events from USGS with magnitude, location, depth, and tsunami flag, filterable by magnitude, time, and radius.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
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"properties": {
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"HEAD",
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"type": "string"
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"queryParams": {
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"endtime": {
"description": "ISO date/time",
"type": "string"
},
"latitude": {
"description": "radius search center lat (needs longitude+maxradiuskm)",
"type": "string"
},
"limit": {
"default": "50",
"type": "string"
},
"longitude": {
"type": "string"
},
"maxradiuskm": {
"type": "string"
},
"minmagnitude": {
"default": "2.5",
"type": "string"
},
"starttime": {
"description": "ISO date/time (default: 24h ago)",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
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"type": "string"
}
},
"required": [
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"output": {
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},
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}
},
"required": [
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],
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},
"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789191719.42,
"offers": [
{
"amount": "0.005",
"amount_atomic": "5000",
"amount_encoding": "atomic_units",
"amount_raw": "5000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
"operator_identity": "not_verified",
"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "9895bd56e6d867a8f7f441d31e3c37014e6e211256019c569d02b946b0bc1b02",
"schema_fingerprint": "df768ea9a9c82cc8a2bc30809ac09c371a80f2dfed0f5e3104ad2524ad2b9f6e",
"service_id": "8e8e748e4d880d6e458d7aa79cdd6d2235f86d2ecaea05654dc000c1aa79c3f7",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-08T16:54:48.084Z",
"url": "https://api.kadec0.xyz/v1/usgs-quakes",
"usage_rights": "not_reviewed"
}api.kadec0.xyzEthereum gas price oracle. Returns the current Ethereum gas price as an EIP-1559 base fee plus priority-fee estimates across five confidence tiers, all in gwei, so an agent can price a transaction before it signs one. Ethereum mainnet only. Keyless, via Blocknative.
https://api.kadec0.xyz/v1/gas-oracle ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.01 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Ethereum gas price oracle. Returns the current Ethereum gas price as an EIP-1559 base fee plus priority-fee estimates across five confidence tiers, all in gwei, so an agent can price a transaction before it signs one. Ethereum mainnet only. Keyless, via Blocknative.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
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},
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}
},
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],
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},
"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789191719.42,
"offers": [
{
"amount": "0.01",
"amount_atomic": "10000",
"amount_encoding": "atomic_units",
"amount_raw": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
"operator_identity": "not_verified",
"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "9895bd56e6d867a8f7f441d31e3c37014e6e211256019c569d02b946b0bc1b02",
"schema_fingerprint": "4c5ca9b5d504fb9307bd33483bd442ffcc71a0b4ce9146e3c5ee872fb1caabd0",
"service_id": "9a114a673c2558c9f4f3d5f703bf448d0518c77effe707a32d608426360afcf8",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-08T07:22:31.281Z",
"url": "https://api.kadec0.xyz/v1/gas-oracle",
"usage_rights": "not_reviewed"
}api.kadec0.xyzScrape any web page to clean markdown. A keyless web scraper that converts a single URL into LLM-ready markdown plus structured metadata (title, headings, links, word count), so an agent can read a page without running a browser. A per-call alternative to Firecrawl's scrape endpoint, with no API key and no account. Single page per call, not a site crawler.
https://api.kadec0.xyz/v1/scrape ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.03 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Scrape any web page to clean markdown. A keyless web scraper that converts a single URL into LLM-ready markdown plus structured metadata (title, headings, links, word count), so an agent can read a page without running a browser. A per-call alternative to Firecrawl's scrape endpoint, with no API key and no account. Single page per call, not a site crawler.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
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},
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}
},
"required": [
"url"
],
"type": "object"
},
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}
},
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},
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}
},
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"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789191719.42,
"offers": [
{
"amount": "0.03",
"amount_atomic": "30000",
"amount_encoding": "atomic_units",
"amount_raw": "30000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
"operator_identity": "not_verified",
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"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "9895bd56e6d867a8f7f441d31e3c37014e6e211256019c569d02b946b0bc1b02",
"schema_fingerprint": "a6057b3e11bd5cc3f8a45507cca472157bfd52841e136c8ebe419e2a33d8136f",
"service_id": "9a7f3fd8f17b669da645520f9c09f73bf76f58c51c67ca6f19d5bae5dd00567b",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-12T02:30:54.15Z",
"url": "https://api.kadec0.xyz/v1/scrape",
"usage_rights": "not_reviewed"
}api.kadec0.xyzLiterature review and related-paper discovery. Given a seed paper (arXiv id, DOI, or OpenAlex id) or a topic query, returns semantically similar and recommended scholarly papers to expand a reading list or systematic review, via Semantic Scholar recommendations with an OpenAlex related-works fallback. Keyless.
https://api.kadec0.xyz/v1/related-papers ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.03 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Literature review and related-paper discovery. Given a seed paper (arXiv id, DOI, or OpenAlex id) or a topic query, returns semantically similar and recommended scholarly papers to expand a reading list or systematic review, via Semantic Scholar recommendations with an OpenAlex related-works fallback. Keyless.",
"domain": "api.kadec0.xyz",
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{
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],
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"legacy_network": null,
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"metadata": null,
"method": "GET",
"observed_at": 1789191719.42,
"offers": [
{
"amount": "0.03",
"amount_atomic": "30000",
"amount_encoding": "atomic_units",
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"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
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}
],
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"schema_fingerprint": "c812a090ed9061075acfc40a6a99014ec427f8160b6d5b170fa3659595ab8974",
"service_id": "9cd9574d95742b2497b0583cf01fe052f132368d779b1db1d7096208947cd7d7",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-07T08:10:57.907Z",
"url": "https://api.kadec0.xyz/v1/related-papers",
"usage_rights": "not_reviewed"
}api.kadec0.xyzCVE vulnerability lookup. Returns security vulnerability records by CVE id or keyword from the NIST National Vulnerability Database and GitHub Security Advisories, each with CVSS score, severity, CWE weakness class, affected products, and references, filterable by severity and source. For vulnerability triage and dependency risk checks. Keyless.
https://api.kadec0.xyz/v1/cve ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.01 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
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"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
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},
{
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],
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},
"keyword": {
"description": "free-text search",
"type": "string"
},
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},
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"enum": [
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"github",
"all"
],
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}
},
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"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
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},
"issuer": null,
"network": "eip155:8453",
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],
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"source": "cdp-bazaar",
"source_updated_at": "2026-09-11T18:14:06.584Z",
"url": "https://api.kadec0.xyz/v1/cve",
"usage_rights": "not_reviewed"
}api.kadec0.xyzStack Overflow Q&A. Programming question and answer search with scores, accepted-answer flags, tags, and answer bodies via the Stack Exchange API.
https://api.kadec0.xyz/v1/stackoverflow ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.01 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Stack Overflow Q&A. Programming question and answer search with scores, accepted-answer flags, tags, and answer bodies via the Stack Exchange API.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
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"properties": {
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"HEAD",
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],
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{
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]
},
{
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]
}
],
"properties": {
"ids": {
"description": "comma list of question ids (mode=question)",
"type": "string"
},
"maxItems": {
"default": "20",
"type": "string"
},
"mode": {
"enum": [
"search",
"question"
],
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},
"q": {
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},
"tag": {
"description": "optional tag filter",
"type": "string"
}
},
"required": [],
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},
"type": {
"const": "http",
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}
},
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],
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},
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},
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},
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}
},
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"metadata": null,
"method": "GET",
"observed_at": 1789191719.42,
"offers": [
{
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"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
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}
],
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"protocol": "x402",
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"quality": "not_evaluated",
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"service_id": "9fb8802c4a3c3112eb33415a6dc2e8d2dde8f45cc1a38b4c09b5b683cf0e447a",
"source": "cdp-bazaar",
"source_updated_at": "2026-08-26T05:08:54.546Z",
"url": "https://api.kadec0.xyz/v1/stackoverflow",
"usage_rights": "not_reviewed"
}api.kadec0.xyzDNS propagation checker. Compares a DNS record across public resolvers (Google, Cloudflare, Quad9, OpenDNS) to spot propagation lag or split-horizon answers.
https://api.kadec0.xyz/v1/dns-propagation ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.03 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "DNS propagation checker. Compares a DNS record across public resolvers (Google, Cloudflare, Quad9, OpenDNS) to spot propagation lag or split-horizon answers.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"domain": {
"type": "string"
},
"record_type": {
"default": "A",
"enum": [
"A",
"AAAA",
"CNAME",
"MX",
"NS",
"TXT"
],
"type": "string"
}
},
"required": [
"domain"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
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],
"type": "object"
},
"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789191719.42,
"offers": [
{
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"amount_encoding": "atomic_units",
"amount_raw": "30000",
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"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
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"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "9895bd56e6d867a8f7f441d31e3c37014e6e211256019c569d02b946b0bc1b02",
"schema_fingerprint": "5693eef03577103ca999d27c01cea7447e90ab50d70ff173d51ab9ee92eb8ee7",
"service_id": "a2da05a849b351b0f016425cc0fc90c022c85dc2ee5e545d60df77618b992b6e",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-07T22:23:24.589Z",
"url": "https://api.kadec0.xyz/v1/dns-propagation",
"usage_rights": "not_reviewed"
}api.kadec0.xyzWeb search results (SERP). Keyless web search returning ranked title, URL, and snippet for a query — with locale/region targeting, freshness filters (past day, week, month, year), pagination, a news mode that adds publish date and source, and selectable backend engine (auto rotation, or pin Brave, Yahoo, or Yandex).
https://api.kadec0.xyz/v1/serp ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.05 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Web search results (SERP). Keyless web search returning ranked title, URL, and snippet for a query — with locale/region targeting, freshness filters (past day, week, month, year), pagination, a news mode that adds publish date and source, and selectable backend engine (auto rotation, or pin Brave, Yahoo, or Yandex).",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
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"properties": {
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"properties": {
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"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
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"description": "search backend: auto (recommended - rotates engines and falls back on blocks) or pin one of yahoo, yandex (web mode); news mode supports bing. when set, each result carries an 'engine' field; if the pinned engine returns nothing, auto serves instead and results also carry 'requestedEngine'",
"type": "string"
},
"mode": {
"default": "web",
"description": "web results or recent news (news adds date+source per item). the news index is narrow, so a long or highly specific news query that matches nothing falls through to web rather than returning empty; those items carry requestedMode=news and servedBy=web",
"enum": [
"web",
"news"
],
"type": "string"
},
"num_results": {
"default": "10",
"description": "max results, cap 25",
"type": "string"
},
"page": {
"default": "1",
"description": "result page (pagination)",
"type": "string"
},
"q": {
"description": "search query",
"type": "string"
},
"region": {
"default": "us-en",
"description": "locale, e.g. us-en, uk-en, de-de",
"type": "string"
},
"safesearch": {
"default": "moderate",
"enum": [
"on",
"moderate",
"off"
],
"type": "string"
},
"timelimit": {
"description": "restrict to past day/week/month/year",
"enum": [
"d",
"w",
"m",
"y"
],
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}
},
"required": [
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],
"type": "object"
},
"type": {
"const": "http",
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}
},
"required": [
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],
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},
"output": {
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},
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},
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}
},
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"legacy_network": null,
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"metadata": null,
"method": "GET",
"observed_at": 1789191719.42,
"offers": [
{
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"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
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}
],
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"protocol": "x402",
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"quality": "not_evaluated",
"run_id": "9895bd56e6d867a8f7f441d31e3c37014e6e211256019c569d02b946b0bc1b02",
"schema_fingerprint": "9052a574cd34e41bca14ea2274ee8ce68b7d1974679c5a6c1b1c4bc66eeabdb7",
"service_id": "aa90bdba42731620ec5264a83100b50750c87b4a4096cbdbd6c8fe642c6569e6",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-11T08:29:21.742Z",
"url": "https://api.kadec0.xyz/v1/serp",
"usage_rights": "not_reviewed"
}api.kadec0.xyzBulk web search: up to 5 search queries in a single call, each returning ranked title, URL, and snippet, with the same locale, freshness, and news filters as the single-query web search. One paid call instead of five for research fan-out.
https://api.kadec0.xyz/v1/serp-batch ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.1 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Bulk web search: up to 5 search queries in a single call, each returning ranked title, URL, and snippet, with the same locale, freshness, and news filters as the single-query web search. One paid call instead of five for research fan-out.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
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],
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},
"mode": {
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"enum": [
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],
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},
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},
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},
"region": {
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},
"safesearch": {
"default": "moderate",
"enum": [
"on",
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],
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},
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"enum": [
"d",
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"m",
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],
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}
},
"required": [
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],
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},
"type": {
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}
},
"required": [
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],
"type": "object"
},
"output": {
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"type": {
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},
"required": [
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},
"required": [
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},
"legacy_network": null,
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"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789191719.42,
"offers": [
{
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"amount_encoding": "atomic_units",
"amount_raw": "100000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
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"usd_market_value": null
}
],
"operator_identity": "not_verified",
"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "9895bd56e6d867a8f7f441d31e3c37014e6e211256019c569d02b946b0bc1b02",
"schema_fingerprint": "9809e938f755437e403ba1c91e489acaf6f1da776b10a7be802b769e22fd98b7",
"service_id": "b2819ac089765593a86d3cc6844843d7d33ba9b411a0b60980724b92d7e1ab65",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-08T04:31:32.738Z",
"url": "https://api.kadec0.xyz/v1/serp-batch",
"usage_rights": "not_reviewed"
}api.kadec0.xyzBuilding permit records. Construction and building permits across Chicago, NYC, Seattle, and San Francisco — type, status, address, cost, and issue date.
https://api.kadec0.xyz/v1/permits ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.03 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Building permit records. Construction and building permits across Chicago, NYC, Seattle, and San Francisco — type, status, address, cost, and issue date.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
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"properties": {
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"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"address": {
"description": "full-text match on address",
"type": "string"
},
"city": {
"enum": [
"chicago",
"nyc",
"seattle",
"sf"
],
"type": "string"
},
"date_range": {
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"type": "string"
},
"maxItems": {
"default": "25",
"type": "string"
},
"permit_type": {
"description": "full-text match on permit type/description",
"type": "string"
}
},
"required": [
"city"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
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],
"type": "object"
},
"output": {
"properties": {
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"url": "https://api.kadec0.xyz/v1/permits",
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}api.kadec0.xyzDeFi yield and APY across pools. Returns the top yield-farming pools via DefiLlama with current APY, base and reward APY split, TVL, chain, and project, filterable by chain, project, symbol, stablecoin-only, minimum TVL, and minimum APY. For yield discovery and comparing APY across protocols. Keyless.
https://api.kadec0.xyz/v1/yield-pools ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.03 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
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"url": "https://api.kadec0.xyz/v1/yield-pools",
"usage_rights": "not_reviewed"
}api.kadec0.xyzField and topic search for research papers. Give a broad field name or short phrase (like 'crispr' or 'exercise science') and get a coherent, taxonomy-grounded seed cluster: the field is resolved against the OpenAlex topics taxonomy, then the cluster returns the top-cited plus recent-influential works, each with title, authors, year, venue, citation count, and DOI. Solves the broad-term entry problem dense semantic search fails on. Keyless.
https://api.kadec0.xyz/v1/topic-search ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.02 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
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"currency": "USDC",
"decimals": 6,
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"version": "2"
},
"issuer": null,
"network": "eip155:8453",
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"price_basis": "advertised",
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"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "9895bd56e6d867a8f7f441d31e3c37014e6e211256019c569d02b946b0bc1b02",
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"service_id": "d06df19f1d84bbe8e1d01ec92d6dd388322ce7195b8013af3e820586abc7979f",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-08T06:18:29.418Z",
"url": "https://api.kadec0.xyz/v1/topic-search",
"usage_rights": "not_reviewed"
}api.kadec0.xyzCitation lookup and reference list for a paper. Given a DOI, arXiv id, OpenAlex id, or PMID, returns its references (the works it cites) and its cited-by list (recent works that cite it), plus full metadata and citation count — for bibliography building and citation lookup. Keyless via OpenAlex and Semantic Scholar.
https://api.kadec0.xyz/v1/paper-details ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.03 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
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"service_id": "d407dae8102a6e2b39727f960b6c641e5df34b1698db5a3b2621447fcf072bc9",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-08T05:06:47.914Z",
"url": "https://api.kadec0.xyz/v1/paper-details",
"usage_rights": "not_reviewed"
}api.kadec0.xyzDomain WHOIS and DNS lookup. Registrar, creation and expiry dates, nameservers, and full DNS records (A, AAAA, MX, NS, TXT, CNAME) for a domain.
https://api.kadec0.xyz/v1/domain-info ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.02 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Domain WHOIS and DNS lookup. Registrar, creation and expiry dates, nameservers, and full DNS records (A, AAAA, MX, NS, TXT, CNAME) for a domain.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
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},
"required": [
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"type": "string"
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},
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"offers": [
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"service_id": "ebe500e51a0eb052cfe6e6317d4bea8a99184d2937f35ff445c97019b2a4d817",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-11T15:35:58.602Z",
"url": "https://api.kadec0.xyz/v1/domain-info",
"usage_rights": "not_reviewed"
}api.kadec0.xyzTrending crypto coins. The coins most searched on CoinGecko right now, with rank, price, and market-cap rank.
https://api.kadec0.xyz/v1/trending-coins ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.01 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Trending crypto coins. The coins most searched on CoinGecko right now, with rank, price, and market-cap rank.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
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"offers": [
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"url": "https://api.kadec0.xyz/v1/trending-coins",
"usage_rights": "not_reviewed"
}api.kadec0.xyzFood nutrition lookup. Calories, macros, and micronutrients for any food from the USDA FoodData Central database.
https://api.kadec0.xyz/v1/nutrition ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.01 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
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"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789191719.42,
"offers": [
{
"amount": "0.01",
"amount_atomic": "10000",
"amount_encoding": "atomic_units",
"amount_raw": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
"operator_identity": "not_verified",
"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "9895bd56e6d867a8f7f441d31e3c37014e6e211256019c569d02b946b0bc1b02",
"schema_fingerprint": "cefbf29ad9f68db2df473216e13c604cee30da75a967f40ff0cd660a876a80cd",
"service_id": "fad7f100c76234ee61ddbd5ac97519f9ef5984000fc41eaabcd0d2dfdb9ec0df",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-01T21:47:06.16Z",
"url": "https://api.kadec0.xyz/v1/nutrition",
"usage_rights": "not_reviewed"
}api.kadec0.xyzBulk WHOIS lookup. Registrar, dates, and nameservers for up to 10 domains in a single batch call.
https://api.kadec0.xyz/v1/whois-bulk ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.05 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Bulk WHOIS lookup. Registrar, dates, and nameservers for up to 10 domains in a single batch call.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"domains": {
"description": "comma list of up to 10 domains",
"type": "string"
}
},
"required": [
"domains"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
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}
},
"required": [
"type"
],
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}
},
"required": [
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],
"type": "object"
},
"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789166492.489,
"offers": [
{
"amount": "0.05",
"amount_atomic": "50000",
"amount_encoding": "atomic_units",
"amount_raw": "50000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
"operator_identity": "not_verified",
"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "a2d71bc23fe499771cb704508ed1f9963e3d6a9527f1544d038dc3d3ae01df5a",
"schema_fingerprint": "028bed932f3e596b1addd16b86a648769d6403947475701b779574d9fa270853",
"service_id": "02d5e78a836c2397f994ce3190932f07107154cb53f49697dc4d75e38144c584",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-11T12:46:05.833Z",
"url": "https://api.kadec0.xyz/v1/whois-bulk",
"usage_rights": "not_reviewed"
}api.kadec0.xyzCrypto token price and market data. Returns the live price of one or many tokens by coin id or ticker symbol, in a chosen vs-currency, with market cap, 24-hour volume, and 24-hour price change. For crypto price lookups, portfolio valuation, and market data feeds. Keyless, via CoinPaprika.
https://api.kadec0.xyz/v1/token-price ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.01 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Crypto token price and market data. Returns the live price of one or many tokens by coin id or ticker symbol, in a chosen vs-currency, with market cap, 24-hour volume, and 24-hour price change. For crypto price lookups, portfolio valuation, and market data feeds. Keyless, via CoinPaprika.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"ids": {
"description": "comma list of coin ids or symbols (e.g. bitcoin,ethereum or btc,eth)",
"type": "string"
},
"vs": {
"default": "usd",
"description": "quote currency (usd only)",
"type": "string"
}
},
"required": [
"ids"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
},
"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789166492.489,
"offers": [
{
"amount": "0.01",
"amount_atomic": "10000",
"amount_encoding": "atomic_units",
"amount_raw": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
"operator_identity": "not_verified",
"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "a2d71bc23fe499771cb704508ed1f9963e3d6a9527f1544d038dc3d3ae01df5a",
"schema_fingerprint": "c28bb901960ec94240caea445dfe137c5d44d585ff19954e612a590cd57be9b2",
"service_id": "0c284dd82c483b02263e05d39607cffc9f9ca8fa97a270dbd33a642885c31fb9",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-11T13:24:43.491Z",
"url": "https://api.kadec0.xyz/v1/token-price",
"usage_rights": "not_reviewed"
}api.kadec0.xyzGoogle Trends interest over time for a keyword. Returns Google Trends search interest as a dated series indexed 0-100: weekly points across the default past 12 months, daily points for 30- and 90-day windows, and windows from the past hour back to 2004, with optional country targeting. For keyword trend analysis, search demand seasonality, and SEO keyword research.
https://api.kadec0.xyz/v1/trend ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.05 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Google Trends interest over time for a keyword. Returns Google Trends search interest as a dated series indexed 0-100: weekly points across the default past 12 months, daily points for 30- and 90-day windows, and windows from the past hour back to 2004, with optional country targeting. For keyword trend analysis, search demand seasonality, and SEO keyword research.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"geo": {
"description": "ISO-3166 alpha-2 country code, e.g. US, GB, DE, JP (213 countries supported); omit for worldwide",
"type": "string"
},
"keyword": {
"description": "the search term to chart",
"type": "string"
},
"timeframe": {
"default": "past_12_months",
"description": "time window. Each response reports its own bucket size in `granularity`: past_30_days and past_90_days return a daily series, past_12_months and past_5_years weekly, windows under a day hourly",
"enum": [
"2004_present",
"past_12_months",
"past_30_days",
"past_4_hours",
"past_5_years",
"past_7_days",
"past_90_days",
"past_day",
"past_hour"
],
"type": "string"
}
},
"required": [
"keyword"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
},
"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789166492.489,
"offers": [
{
"amount": "0.05",
"amount_atomic": "50000",
"amount_encoding": "atomic_units",
"amount_raw": "50000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
"operator_identity": "not_verified",
"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "a2d71bc23fe499771cb704508ed1f9963e3d6a9527f1544d038dc3d3ae01df5a",
"schema_fingerprint": "3250605bee338e5c16862b1c142e4b138e8023b66e743a0c6b01fb38f55eb034",
"service_id": "1d17f8c36780c5611bf363e9f5f28d311c1eed8e28741f4037f4e248f2a12c4f",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-10T07:01:46.645Z",
"url": "https://api.kadec0.xyz/v1/trend",
"usage_rights": "not_reviewed"
}api.kadec0.xyzGoogle Trends related topics for a keyword. Returns the topics and named entities associated with a keyword in a given country, as top topics scored 0-100 relative to each other and rising topics with percentage growth, each carrying its entity type. Google Trends topic discovery for market research and content planning.
https://api.kadec0.xyz/v1/related-topics ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.03 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Google Trends related topics for a keyword. Returns the topics and named entities associated with a keyword in a given country, as top topics scored 0-100 relative to each other and rising topics with percentage growth, each carrying its entity type. Google Trends topic discovery for market research and content planning.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"geo": {
"description": "ISO-3166 alpha-2 country code, e.g. US, GB, DE, JP (213 countries supported)",
"type": "string"
},
"keyword": {
"description": "the search term",
"type": "string"
},
"timeframe": {
"default": "past_12_months",
"description": "time window. Each response reports its own bucket size in `granularity`: past_30_days and past_90_days return a daily series, past_12_months and past_5_years weekly, windows under a day hourly",
"enum": [
"2004_present",
"past_12_months",
"past_30_days",
"past_4_hours",
"past_5_years",
"past_7_days",
"past_90_days",
"past_day",
"past_hour"
],
"type": "string"
}
},
"required": [
"keyword",
"geo"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
},
"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789166492.489,
"offers": [
{
"amount": "0.03",
"amount_atomic": "30000",
"amount_encoding": "atomic_units",
"amount_raw": "30000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
"operator_identity": "not_verified",
"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "a2d71bc23fe499771cb704508ed1f9963e3d6a9527f1544d038dc3d3ae01df5a",
"schema_fingerprint": "badf647671d2ee8743e62bc74e7e23265b3d7b8d5c2f04e1a7163ddfaf1e9f97",
"service_id": "1d63f09c57aa096cd72e6a040611976e4625af1ab28a58b9fe4fc55dea48f292",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-08T07:21:58.036Z",
"url": "https://api.kadec0.xyz/v1/related-topics",
"usage_rights": "not_reviewed"
}api.kadec0.xyzLiterature review map in one call. Give a seed paper (DOI, arXiv id, OpenAlex id, or PMID) or a topic query and get one structured result: the seed's references, its cited-by list (most-cited first), and semantically related work, deduplicated into one uniform table with title, authors, year, venue, DOI, and citation count. Collapses search, citation lookup, and related-paper discovery into a single call. Keyless.
https://api.kadec0.xyz/v1/lit-review ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.08 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Literature review map in one call. Give a seed paper (DOI, arXiv id, OpenAlex id, or PMID) or a topic query and get one structured result: the seed's references, its cited-by list (most-cited first), and semantically related work, deduplicated into one uniform table with title, authors, year, venue, DOI, and citation count. Collapses search, citation lookup, and related-paper discovery into a single call. Keyless.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"anyOf": [
{
"required": [
"id"
]
},
{
"required": [
"doi"
]
},
{
"required": [
"q"
]
}
],
"properties": {
"doi": {
"description": "alias for id (DOI form)",
"type": "string"
},
"id": {
"description": "seed paper: arXiv id, DOI, OpenAlex id, or PMID",
"type": "string"
},
"maxItems": {
"default": "10",
"description": "max nodes per section (1-25)",
"type": "string"
},
"q": {
"description": "topic query (seed = top hit); use this OR id/doi",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
},
"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789166492.489,
"offers": [
{
"amount": "0.08",
"amount_atomic": "80000",
"amount_encoding": "atomic_units",
"amount_raw": "80000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
"operator_identity": "not_verified",
"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "a2d71bc23fe499771cb704508ed1f9963e3d6a9527f1544d038dc3d3ae01df5a",
"schema_fingerprint": "8ef0cc870adc193e5b4a1005d5cd1d7ec233cb18cee461870d68bdf63f4ac45d",
"service_id": "1eef734bc6243c68aa5234a6cb58d8ee54b79cbf99520b4eddc4e463a28b6fe9",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-08T04:39:10.01Z",
"url": "https://api.kadec0.xyz/v1/lit-review",
"usage_rights": "not_reviewed"
}api.kadec0.xyzFull text and open-access PDF retrieval for a paper. Given an arXiv id, DOI, OpenAlex id, PMID, or PMCID, returns the readable body split into sections (introduction, methods, results) plus the open-access PDF location: arXiv via ar5iv, biomedical via Europe PMC, OA locations via OpenAlex for the rest. The 'now read it' call after a paper search. Keyless.
https://api.kadec0.xyz/v1/paper-fulltext ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.04 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Full text and open-access PDF retrieval for a paper. Given an arXiv id, DOI, OpenAlex id, PMID, or PMCID, returns the readable body split into sections (introduction, methods, results) plus the open-access PDF location: arXiv via ar5iv, biomedical via Europe PMC, OA locations via OpenAlex for the rest. The 'now read it' call after a paper search. Keyless.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
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"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"anyOf": [
{
"required": [
"id"
]
},
{
"required": [
"doi"
]
}
],
"properties": {
"doi": {
"description": "alias for id (DOI form)",
"type": "string"
},
"id": {
"description": "arXiv id, DOI, OpenAlex id, PMID, or PMCID",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
},
"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789166492.489,
"offers": [
{
"amount": "0.04",
"amount_atomic": "40000",
"amount_encoding": "atomic_units",
"amount_raw": "40000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
"operator_identity": "not_verified",
"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "a2d71bc23fe499771cb704508ed1f9963e3d6a9527f1544d038dc3d3ae01df5a",
"schema_fingerprint": "443dcaa187689aaf0bbf5426b33b164cd6bc9dbe9e4681245321433f908fcba5",
"service_id": "262d3870ca81f1072edb7f64849ccd21e87e5c8b6569ef0846ef2a76de2c7677",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-11T18:36:32.004Z",
"url": "https://api.kadec0.xyz/v1/paper-fulltext",
"usage_rights": "not_reviewed"
}api.kadec0.xyzEmail validation and email list cleaning. Checks each email address for RFC syntax, a live MX record lookup returning the real mail hosts, disposable-domain detection, role-account flags (info@, sales@, noreply@), and a free-provider flag, rolled into a per-address ok/risky/invalid verdict with reasons. Batch up to 25 email addresses per call. Domain-level DNS only, no SMTP mailbox probe. Keyless.
https://api.kadec0.xyz/v1/email-validate ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.03 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA |
Source and evidence
{
"description": "Email validation and email list cleaning. Checks each email address for RFC syntax, a live MX record lookup returning the real mail hosts, disposable-domain detection, role-account flags (info@, sales@, noreply@), and a free-provider flag, rolled into a per-address ok/risky/invalid verdict with reasons. Batch up to 25 email addresses per call. Domain-level DNS only, no SMTP mailbox probe. Keyless.",
"domain": "api.kadec0.xyz",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"emails": {
"description": "comma-separated email addresses, up to 25 per call (a single address works too)",
"type": "string"
}
},
"required": [
"emails"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
},
"legacy_network": null,
"legacy_pay_to": null,
"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "GET",
"observed_at": 1789166492.489,
"offers": [
{
"amount": "0.03",
"amount_atomic": "30000",
"amount_encoding": "atomic_units",
"amount_raw": "30000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
"decimals_basis": "known_token_mapping",
"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
"operator_identity": "not_verified",
"output_schema": null,
"protocol": "x402",
"protocol_version": 2,
"quality": "not_evaluated",
"run_id": "a2d71bc23fe499771cb704508ed1f9963e3d6a9527f1544d038dc3d3ae01df5a",
"schema_fingerprint": "a9f1d953cd61aebe3554c3f70a75e25c3aa76adefee8fe9b65dfabfb92d61f89",
"service_id": "2661e2b2e55b3760d1e9c29415976676c0925a72c17a571d7cf50d3e4320c1c8",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-08T07:22:01.081Z",
"url": "https://api.kadec0.xyz/v1/email-validate",
"usage_rights": "not_reviewed"
}Outcome evidence starts with your workflow.
Private intake is ready for task IDs, charges, retries, result fingerprints and your evaluation criteria. Public performance comparisons need measured results; we do not have that benchmark yet.
Discuss an outcome integrationCollection coverage
Discovery comes from configured registries. Endpoint checks record responses, not task success. Older snapshots retain less detail. Customer usage, commercial terms and task evaluations require additional evidence.
1,423 historical or current source records quarantined during normalization; they are excluded from public comparisons.
43 of 43 archive objects verified in Backblaze. Last verification: Sep 12, 2026, 05:56 UTC.
Collection status JSON