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.
28 observations · Differences between dated observations.
readability.openverbs.comCount syllables per word and in total across the text.
https://readability.openverbs.com/v1/syllables ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
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"domain": "readability.openverbs.com",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
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},
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"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "POST",
"observed_at": 1789191719.42,
"offers": [
{
"amount": "0.002",
"amount_atomic": "2000",
"amount_encoding": "atomic_units",
"amount_raw": "2000",
"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": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
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"protocol": "x402",
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"source": "cdp-bazaar",
"source_updated_at": "2026-09-06T08:17:53.532Z",
"url": "https://readability.openverbs.com/v1/syllables",
"usage_rights": "not_reviewed"
}readability.openverbs.comSummarise a text's difficulty as a single consensus US grade level (averaging the five grade formulas), plus the Flesch Reading Ease, a plain-language difficulty band and an approximate age range.
https://readability.openverbs.com/v1/grade ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
"description": "Summarise a text's difficulty as a single consensus US grade level (averaging the five grade formulas), plus the Flesch Reading Ease, a plain-language difficulty band and an approximate age range.",
"domain": "readability.openverbs.com",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
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"method",
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],
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}
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},
"legacy_network": null,
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"legacy_price_usd": null,
"metadata": null,
"method": "POST",
"observed_at": 1789191719.42,
"offers": [
{
"amount": "0.002",
"amount_atomic": "2000",
"amount_encoding": "atomic_units",
"amount_raw": "2000",
"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": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
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"protocol": "x402",
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"quality": "not_evaluated",
"run_id": "9895bd56e6d867a8f7f441d31e3c37014e6e211256019c569d02b946b0bc1b02",
"schema_fingerprint": "e517c2da7e7163c06ef6db8ca03a38aebd8e3489a6a8ed105cab05ab5f94c867",
"service_id": "1182a9d5f60262c7bcbba1ea93c999ff315ff1fadf849e4aeac0b39a8548560b",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-06T08:17:51.534Z",
"url": "https://readability.openverbs.com/v1/grade",
"usage_rights": "not_reviewed"
}readability.openverbs.comCompute the standard English readability formulas — Flesch Reading Ease, Flesch–Kincaid grade, Gunning fog, SMOG, Coleman–Liau and ARI — along with the underlying sentence/word/syllable statistics. Empty text is a clean 400.
https://readability.openverbs.com/v1/score ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
"description": "Compute the standard English readability formulas — Flesch Reading Ease, Flesch–Kincaid grade, Gunning fog, SMOG, Coleman–Liau and ARI — along with the underlying sentence/word/syllable statistics. Empty text is a clean 400.",
"domain": "readability.openverbs.com",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
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"properties": {
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"properties": {
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},
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"metadata": null,
"method": "POST",
"observed_at": 1789191719.42,
"offers": [
{
"amount": "0.002",
"amount_atomic": "2000",
"amount_encoding": "atomic_units",
"amount_raw": "2000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
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"extra": {
"name": "USD Coin",
"version": "2"
},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
"price_basis": "advertised",
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}
],
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"schema_fingerprint": "9cbbcc275702337e2a1d70ee3ddcf56841130a09121e100174d4a7f304780a09",
"service_id": "5238032240e8fbfea804580e82a3c4e0d4a98b5099f139697f82a67d2f2cb71c",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-06T08:17:49.522Z",
"url": "https://readability.openverbs.com/v1/score",
"usage_rights": "not_reviewed"
}readability.openverbs.comEstimate reading and speaking time for a text at configurable words-per-minute rates (defaults: 200 wpm reading, 130 wpm speaking).
https://readability.openverbs.com/v1/reading-time ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
"description": "Estimate reading and speaking time for a text at configurable words-per-minute rates (defaults: 200 wpm reading, 130 wpm speaking).",
"domain": "readability.openverbs.com",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
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"properties": {
"body": {
"additionalProperties": false,
"properties": {
"readingWpm": {
"description": "Reading rate in words per minute. Default 200.",
"exclusiveMinimum": 0,
"type": "number"
},
"speakingWpm": {
"description": "Speaking rate in words per minute. Default 130.",
"exclusiveMinimum": 0,
"type": "number"
},
"text": {
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"type": "string"
}
},
"required": [
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},
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"form-data",
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],
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"type": {
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},
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},
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},
"legacy_network": null,
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"legacy_price_basis": null,
"legacy_price_usd": null,
"metadata": null,
"method": "POST",
"observed_at": 1789191719.42,
"offers": [
{
"amount": "0.002",
"amount_atomic": "2000",
"amount_encoding": "atomic_units",
"amount_raw": "2000",
"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": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
"price_basis": "advertised",
"scheme": "exact",
"timeout_seconds": 300,
"usd_market_value": null
}
],
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"protocol": "x402",
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"quality": "not_evaluated",
"run_id": "9895bd56e6d867a8f7f441d31e3c37014e6e211256019c569d02b946b0bc1b02",
"schema_fingerprint": "e895526261c671d7f4b751b5de30c8a55d3dc23b30da82438a4f2d5e29fed81e",
"service_id": "72cdbe653a5305db6741a185458a7419b12bce112f516c2562a4e3faca5a5a72",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-06T08:17:55.611Z",
"url": "https://readability.openverbs.com/v1/reading-time",
"usage_rights": "not_reviewed"
}readability.openverbs.comCount syllables per word and in total across the text.
https://readability.openverbs.com/v1/syllables ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
"description": "Count syllables per word and in total across the text.",
"domain": "readability.openverbs.com",
"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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}
},
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"metadata": null,
"method": "POST",
"observed_at": 1789166492.489,
"offers": [
{
"amount": "0.002",
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"amount_encoding": "atomic_units",
"amount_raw": "2000",
"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",
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},
"issuer": null,
"network": "eip155:8453",
"pay_to": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
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}
],
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"protocol": "x402",
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"run_id": "a2d71bc23fe499771cb704508ed1f9963e3d6a9527f1544d038dc3d3ae01df5a",
"schema_fingerprint": "1778badac9e6c552cc4b694b66fb452dfb899ff3f438d33d1c829cc9e7ad8e73",
"service_id": "022d554fec485d81b239f3d5839e5ab4060cb0773402981e4401658423f4b8ec",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-06T08:17:53.532Z",
"url": "https://readability.openverbs.com/v1/syllables",
"usage_rights": "not_reviewed"
}readability.openverbs.comSummarise a text's difficulty as a single consensus US grade level (averaging the five grade formulas), plus the Flesch Reading Ease, a plain-language difficulty band and an approximate age range.
https://readability.openverbs.com/v1/grade ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
"description": "Summarise a text's difficulty as a single consensus US grade level (averaging the five grade formulas), plus the Flesch Reading Ease, a plain-language difficulty band and an approximate age range.",
"domain": "readability.openverbs.com",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
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"properties": {
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"metadata": null,
"method": "POST",
"observed_at": 1789166492.489,
"offers": [
{
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"amount_raw": "2000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"billing_unit": null,
"billing_unit_basis": "commercial_terms_not_validated",
"currency": "USDC",
"decimals": 6,
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},
"issuer": null,
"network": "eip155:8453",
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}
],
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"schema_fingerprint": "e517c2da7e7163c06ef6db8ca03a38aebd8e3489a6a8ed105cab05ab5f94c867",
"service_id": "1182a9d5f60262c7bcbba1ea93c999ff315ff1fadf849e4aeac0b39a8548560b",
"source": "cdp-bazaar",
"source_updated_at": "2026-09-06T08:17:51.534Z",
"url": "https://readability.openverbs.com/v1/grade",
"usage_rights": "not_reviewed"
}readability.openverbs.comCompute the standard English readability formulas — Flesch Reading Ease, Flesch–Kincaid grade, Gunning fog, SMOG, Coleman–Liau and ARI — along with the underlying sentence/word/syllable statistics. Empty text is a clean 400.
https://readability.openverbs.com/v1/score ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
"description": "Compute the standard English readability formulas — Flesch Reading Ease, Flesch–Kincaid grade, Gunning fog, SMOG, Coleman–Liau and ARI — along with the underlying sentence/word/syllable statistics. Empty text is a clean 400.",
"domain": "readability.openverbs.com",
"evidence_mode": "raw",
"extension_names": [
"bazaar"
],
"input_schema": {
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"legacy_network": null,
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"offers": [
{
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}readability.openverbs.comEstimate reading and speaking time for a text at configurable words-per-minute rates (defaults: 200 wpm reading, 130 wpm speaking).
https://readability.openverbs.com/v1/reading-time ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
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}readability.openverbs.comCount syllables per word and in total across the text.
https://readability.openverbs.com/v1/syllables ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
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}readability.openverbs.comSummarise a text's difficulty as a single consensus US grade level (averaging the five grade formulas), plus the Flesch Reading Ease, a plain-language difficulty band and an approximate age range.
https://readability.openverbs.com/v1/grade ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
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}readability.openverbs.comCompute the standard English readability formulas — Flesch Reading Ease, Flesch–Kincaid grade, Gunning fog, SMOG, Coleman–Liau and ARI — along with the underlying sentence/word/syllable statistics. Empty text is a clean 400.
https://readability.openverbs.com/v1/score ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
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}readability.openverbs.comEstimate reading and speaking time for a text at configurable words-per-minute rates (defaults: 200 wpm reading, 130 wpm speaking).
https://readability.openverbs.com/v1/reading-time ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
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"source": "cdp-bazaar",
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"url": "https://readability.openverbs.com/v1/reading-time",
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}readability.openverbs.comCount syllables per word and in total across the text.
https://readability.openverbs.com/v1/syllables ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
"description": "Count syllables per word and in total across the text.",
"domain": "readability.openverbs.com",
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"extension_names": [
"bazaar"
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"url": "https://readability.openverbs.com/v1/syllables",
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}readability.openverbs.comSummarise a text's difficulty as a single consensus US grade level (averaging the five grade formulas), plus the Flesch Reading Ease, a plain-language difficulty band and an approximate age range.
https://readability.openverbs.com/v1/grade ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
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https://readability.openverbs.com/v1/score ↗
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Source and evidence
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https://readability.openverbs.com/v1/reading-time ↗
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Source and evidence
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https://readability.openverbs.com/v1/syllables ↗
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Source and evidence
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https://readability.openverbs.com/v1/grade ↗
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Source and evidence
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https://readability.openverbs.com/v1/score ↗
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Source and evidence
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}readability.openverbs.comEstimate reading and speaking time for a text at configurable words-per-minute rates (defaults: 200 wpm reading, 130 wpm speaking).
https://readability.openverbs.com/v1/reading-time ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
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Source and evidence
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}readability.openverbs.comCount syllables per word and in total across the text.
https://readability.openverbs.com/v1/syllables ↗
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Source and evidence
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"url": "https://readability.openverbs.com/v1/syllables",
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}readability.openverbs.comSummarise a text's difficulty as a single consensus US grade level (averaging the five grade formulas), plus the Flesch Reading Ease, a plain-language difficulty band and an approximate age range.
https://readability.openverbs.com/v1/grade ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
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"url": "https://readability.openverbs.com/v1/grade",
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}readability.openverbs.comCompute the standard English readability formulas — Flesch Reading Ease, Flesch–Kincaid grade, Gunning fog, SMOG, Coleman–Liau and ARI — along with the underlying sentence/word/syllable statistics. Empty text is a clean 400.
https://readability.openverbs.com/v1/score ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
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}readability.openverbs.comEstimate reading and speaking time for a text at configurable words-per-minute rates (defaults: 200 wpm reading, 130 wpm speaking).
https://readability.openverbs.com/v1/reading-time ↗
| Network | Advertised amount | Billing | Payee |
|---|---|---|---|
| eip155:8453 | 0.002 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | Not specifiedexact | 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A |
Source and evidence
{
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"evidence_mode": "raw",
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},
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},
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}readability.openverbs.comCount syllables per word and in total across the text.
https://readability.openverbs.com/v1/syllables ↗
Historical reference. Full payment options and token precision were not retained.
Source and evidence
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}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