INTELLIGENCE

Know what your agents buy.

Costs, changes and evidence for better service decisions.

Cost intelligence

Find the better way to pay.

Compare service prices and payment options against your workload.

Scoped audits · customer usage requiredRequest a cost audit
Change intelligence

Know when your dependencies change.

Track payment offers, service schemas and provider changes over time.

Custom watchlists and historyDiscuss monitoring
Outcome intelligence

Connect the purchase to the result.

Bring charges, retries and task evaluations into one private evidence record.

Integration pilot · your task criteriaConnect your workflow

THE EVIDENCE BASE

Collected. Dated. Traceable.

Use the API
14,635Source listings
33Source snapshots
27,889Recorded changes
1,221Endpoint observations

Latest snapshot: Sep 12, 2026, 05:41 UTC. Daily collection; gaps remain unknown.

246 observations · Differences between dated observations.

x402stock.vercel.appThe daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock
https://x402stock.vercel.app/api/v1/treasury-yields
NetworkAdvertised amountBillingPayee
eip155:84530.01 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913Not specifiedexact0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85
Source and evidence
{
  "description": "The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock",
  "domain": "x402stock.vercel.app",
  "evidence_mode": "raw",
  "extension_names": [
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  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-30T03:47:22.194Z",
  "url": "https://x402stock.vercel.app/api/v1/treasury-yields",
  "usage_rights": "not_reviewed"
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x402stock.vercel.appReference list of US equity exchanges and market centers with names, MICs, operating MICs, and SIP participant IDs. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.
https://x402stock.vercel.app/api/v1/exchanges
NetworkAdvertised amountBillingPayee
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Source and evidence
{
  "description": "Reference list of US equity exchanges and market centers with names, MICs, operating MICs, and SIP participant IDs. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.",
  "domain": "x402stock.vercel.app",
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  "observed_at": 1789191719.42,
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      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
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  "operator_identity": "not_verified",
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  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-30T03:46:54.245Z",
  "url": "https://x402stock.vercel.app/api/v1/exchanges",
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x402stock.vercel.appLive state of every perpetual-futures market in one call: per coin the mark and oracle price, hourly funding rate with annualized APR, premium, open interest, max leverage, previous-day price, and 24h USD and base volume. Native crypto-derivatives data — funding and open interest are perp-only, absent from any spot feed. Free on-chain DEX data (venue: Hyperliquid), no key. From x402stock
https://x402stock.vercel.app/api/v1/perps
NetworkAdvertised amountBillingPayee
eip155:84530.02 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913Not specifiedexact0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85
Source and evidence
{
  "description": "Live state of every perpetual-futures market in one call: per coin the mark and oracle price, hourly funding rate with annualized APR, premium, open interest, max leverage, previous-day price, and 24h USD and base volume. Native crypto-derivatives data — funding and open interest are perp-only, absent from any spot feed. Free on-chain DEX data (venue: Hyperliquid), no key. From x402stock",
  "domain": "x402stock.vercel.app",
  "evidence_mode": "raw",
  "extension_names": [
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  "input_schema": {
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  "observed_at": 1789191719.42,
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x402stock.vercel.appThe total US public debt outstanding to the penny — the headline national-debt figure — split into debt held by the public and intragovernmental holdings, with the latest value, prior business day, day-over-day change, and recent history. No ticker needed. Updates each business day. Sourced from the US Treasury (FiscalData). Pass `?limit=` for more history (default 30, max 250). From x402stock
https://x402stock.vercel.app/api/v1/national-debt
NetworkAdvertised amountBillingPayee
eip155:84530.01 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913Not specifiedexact0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85
Source and evidence
{
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  "domain": "x402stock.vercel.app",
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x402stock.vercel.appFull-text search across every SEC EDGAR filing since 2001. Find filings mentioning a keyword or exact phrase via ?q=, narrow by ?forms=10-K,8-K, ?ticker=, and ?startdt=/?enddt= dates, and cap with ?limit=. Returns each match's form, filer, date, and a link to the document. Sourced from SEC EDGAR. From x402stock, a market & economic data API (x402, USDC).
https://x402stock.vercel.app/api/v1/filing-search
NetworkAdvertised amountBillingPayee
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Source and evidence
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x402stock.vercel.appReference catalog of trade/quote condition codes (the numeric `conditions` seen on trades) with names, types, data types, and SIP mappings. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.
https://x402stock.vercel.app/api/v1/conditions
NetworkAdvertised amountBillingPayee
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Source and evidence
{
  "description": "Reference catalog of trade/quote condition codes (the numeric `conditions` seen on trades) with names, types, data types, and SIP mappings. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.",
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x402stock.vercel.appThe daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock
https://x402stock.vercel.app/api/v1/treasury-yields
NetworkAdvertised amountBillingPayee
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Source and evidence
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x402stock.vercel.appReference list of US equity exchanges and market centers with names, MICs, operating MICs, and SIP participant IDs. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.
https://x402stock.vercel.app/api/v1/exchanges
NetworkAdvertised amountBillingPayee
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Source and evidence
{
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  "domain": "x402stock.vercel.app",
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x402stock.vercel.appLive state of every perpetual-futures market in one call: per coin the mark and oracle price, hourly funding rate with annualized APR, premium, open interest, max leverage, previous-day price, and 24h USD and base volume. Native crypto-derivatives data — funding and open interest are perp-only, absent from any spot feed. Free on-chain DEX data (venue: Hyperliquid), no key. From x402stock
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x402stock.vercel.appThe total US public debt outstanding to the penny — the headline national-debt figure — split into debt held by the public and intragovernmental holdings, with the latest value, prior business day, day-over-day change, and recent history. No ticker needed. Updates each business day. Sourced from the US Treasury (FiscalData). Pass `?limit=` for more history (default 30, max 250). From x402stock
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x402stock.vercel.appFull-text search across every SEC EDGAR filing since 2001. Find filings mentioning a keyword or exact phrase via ?q=, narrow by ?forms=10-K,8-K, ?ticker=, and ?startdt=/?enddt= dates, and cap with ?limit=. Returns each match's form, filer, date, and a link to the document. Sourced from SEC EDGAR. From x402stock, a market & economic data API (x402, USDC).
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  "offers": [
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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",
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  "output_schema": null,
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  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-30T15:48:28.177Z",
  "url": "https://x402stock.vercel.app/api/v1/filing-search",
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x402stock.vercel.appReference catalog of trade/quote condition codes (the numeric `conditions` seen on trades) with names, types, data types, and SIP mappings. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.
https://x402stock.vercel.app/api/v1/conditions
NetworkAdvertised amountBillingPayee
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Source and evidence
{
  "description": "Reference catalog of trade/quote condition codes (the numeric `conditions` seen on trades) with names, types, data types, and SIP mappings. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.",
  "domain": "x402stock.vercel.app",
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      "currency": "USDC",
      "decimals": 6,
      "decimals_basis": "known_token_mapping",
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        "version": "2"
      },
      "issuer": null,
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  "source_updated_at": "2026-08-30T03:46:49.496Z",
  "url": "https://x402stock.vercel.app/api/v1/conditions",
  "usage_rights": "not_reviewed"
}
x402stock.vercel.appThe daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock
https://x402stock.vercel.app/api/v1/treasury-yields
NetworkAdvertised amountBillingPayee
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Source and evidence
{
  "description": "The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock",
  "domain": "x402stock.vercel.app",
  "evidence_mode": "raw",
  "extension_names": [
    "bazaar"
  ],
  "input_schema": {
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  "metadata": null,
  "method": "GET",
  "observed_at": 1789166492.489,
  "offers": [
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      "billing_unit": null,
      "billing_unit_basis": "withdrawn_protocol_inference",
      "currency": "USDC",
      "decimals": 6,
      "decimals_basis": "known_token_mapping",
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      },
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  "output_schema": null,
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  "quality": "not_evaluated",
  "run_id": "cd1760e19f518b50c9ffbaf84aa5ce626d53ffa2f8f27d71b5391096bf66618e",
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  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-30T03:47:22.194Z",
  "url": "https://x402stock.vercel.app/api/v1/treasury-yields",
  "usage_rights": "not_reviewed"
}
x402stock.vercel.appReference list of US equity exchanges and market centers with names, MICs, operating MICs, and SIP participant IDs. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.
https://x402stock.vercel.app/api/v1/exchanges
NetworkAdvertised amountBillingPayee
eip155:84530.01 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913Not specifiedexact0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85
Source and evidence
{
  "description": "Reference list of US equity exchanges and market centers with names, MICs, operating MICs, and SIP participant IDs. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.",
  "domain": "x402stock.vercel.app",
  "evidence_mode": "raw",
  "extension_names": [
    "bazaar"
  ],
  "input_schema": {
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "properties": {
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          "type": {
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        },
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        ],
        "type": "object"
      },
      "output": {
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              "count": {
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              "exchanges": {
                "items": {
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                  "properties": {
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                        {
                          "type": "null"
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                      ]
                    },
                    "id": {
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                    "mic": {
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                    },
                    "name": {
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                    "operating_mic": {
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                    "mic",
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  "metadata": null,
  "method": "GET",
  "observed_at": 1789166492.489,
  "offers": [
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      "amount_encoding": "atomic_units",
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      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "billing_unit": null,
      "billing_unit_basis": "withdrawn_protocol_inference",
      "currency": "USDC",
      "decimals": 6,
      "decimals_basis": "known_token_mapping",
      "extra": {
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        "version": "2"
      },
      "issuer": null,
      "network": "eip155:8453",
      "pay_to": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
      "price_basis": "advertised",
      "scheme": "exact",
      "timeout_seconds": 300,
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  ],
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  "output_schema": null,
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  "quality": "not_evaluated",
  "run_id": "cd1760e19f518b50c9ffbaf84aa5ce626d53ffa2f8f27d71b5391096bf66618e",
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  "service_id": "03828b5992efbb31c42aae0de1d9b98c236c007e30a0edeb8fbfb9ea5fd28b78",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-30T03:46:54.245Z",
  "url": "https://x402stock.vercel.app/api/v1/exchanges",
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}
x402stock.vercel.appLive state of every perpetual-futures market in one call: per coin the mark and oracle price, hourly funding rate with annualized APR, premium, open interest, max leverage, previous-day price, and 24h USD and base volume. Native crypto-derivatives data — funding and open interest are perp-only, absent from any spot feed. Free on-chain DEX data (venue: Hyperliquid), no key. From x402stock
https://x402stock.vercel.app/api/v1/perps
NetworkAdvertised amountBillingPayee
eip155:84530.02 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913Not specifiedexact0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85
Source and evidence
{
  "description": "Live state of every perpetual-futures market in one call: per coin the mark and oracle price, hourly funding rate with annualized APR, premium, open interest, max leverage, previous-day price, and 24h USD and base volume. Native crypto-derivatives data — funding and open interest are perp-only, absent from any spot feed. Free on-chain DEX data (venue: Hyperliquid), no key. From x402stock",
  "domain": "x402stock.vercel.app",
  "evidence_mode": "raw",
  "extension_names": [
    "bazaar"
  ],
  "input_schema": {
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "properties": {
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              "count": {
                "type": "number"
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              "market": {
                "const": "perp",
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              },
              "perps": {
                "items": {
                  "additionalProperties": false,
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                    },
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                      ]
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x402stock.vercel.appThe total US public debt outstanding to the penny — the headline national-debt figure — split into debt held by the public and intragovernmental holdings, with the latest value, prior business day, day-over-day change, and recent history. No ticker needed. Updates each business day. Sourced from the US Treasury (FiscalData). Pass `?limit=` for more history (default 30, max 250). From x402stock
https://x402stock.vercel.app/api/v1/national-debt
NetworkAdvertised amountBillingPayee
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x402stock.vercel.appFull-text search across every SEC EDGAR filing since 2001. Find filings mentioning a keyword or exact phrase via ?q=, narrow by ?forms=10-K,8-K, ?ticker=, and ?startdt=/?enddt= dates, and cap with ?limit=. Returns each match's form, filer, date, and a link to the document. Sourced from SEC EDGAR. From x402stock, a market & economic data API (x402, USDC).
https://x402stock.vercel.app/api/v1/filing-search
NetworkAdvertised amountBillingPayee
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x402stock.vercel.appReference catalog of trade/quote condition codes (the numeric `conditions` seen on trades) with names, types, data types, and SIP mappings. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.
https://x402stock.vercel.app/api/v1/conditions
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  "url": "https://x402stock.vercel.app/api/v1/conditions",
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x402stock.vercel.appThe daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock
https://x402stock.vercel.app/api/v1/treasury-yields
NetworkAdvertised amountBillingPayee
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Source and evidence
{
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  "domain": "x402stock.vercel.app",
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x402stock.vercel.appReference list of US equity exchanges and market centers with names, MICs, operating MICs, and SIP participant IDs. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.
https://x402stock.vercel.app/api/v1/exchanges
NetworkAdvertised amountBillingPayee
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Source and evidence
{
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  "domain": "x402stock.vercel.app",
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x402stock.vercel.appLive state of every perpetual-futures market in one call: per coin the mark and oracle price, hourly funding rate with annualized APR, premium, open interest, max leverage, previous-day price, and 24h USD and base volume. Native crypto-derivatives data — funding and open interest are perp-only, absent from any spot feed. Free on-chain DEX data (venue: Hyperliquid), no key. From x402stock
https://x402stock.vercel.app/api/v1/perps
NetworkAdvertised amountBillingPayee
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Source and evidence
{
  "description": "Live state of every perpetual-futures market in one call: per coin the mark and oracle price, hourly funding rate with annualized APR, premium, open interest, max leverage, previous-day price, and 24h USD and base volume. Native crypto-derivatives data — funding and open interest are perp-only, absent from any spot feed. Free on-chain DEX data (venue: Hyperliquid), no key. From x402stock",
  "domain": "x402stock.vercel.app",
  "evidence_mode": "raw",
  "extension_names": [
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  ],
  "input_schema": {
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                "const": "perp",
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              "perps": {
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  "source_updated_at": "2026-08-23T14:03:16.581Z",
  "url": "https://x402stock.vercel.app/api/v1/perps",
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x402stock.vercel.appThe total US public debt outstanding to the penny — the headline national-debt figure — split into debt held by the public and intragovernmental holdings, with the latest value, prior business day, day-over-day change, and recent history. No ticker needed. Updates each business day. Sourced from the US Treasury (FiscalData). Pass `?limit=` for more history (default 30, max 250). From x402stock
https://x402stock.vercel.app/api/v1/national-debt
NetworkAdvertised amountBillingPayee
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Source and evidence
{
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  "domain": "x402stock.vercel.app",
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x402stock.vercel.appFull-text search across every SEC EDGAR filing since 2001. Find filings mentioning a keyword or exact phrase via ?q=, narrow by ?forms=10-K,8-K, ?ticker=, and ?startdt=/?enddt= dates, and cap with ?limit=. Returns each match's form, filer, date, and a link to the document. Sourced from SEC EDGAR. From x402stock, a market & economic data API (x402, USDC).
https://x402stock.vercel.app/api/v1/filing-search
NetworkAdvertised amountBillingPayee
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Source and evidence
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  "source": "cdp-bazaar",
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x402stock.vercel.appReference catalog of trade/quote condition codes (the numeric `conditions` seen on trades) with names, types, data types, and SIP mappings. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.
https://x402stock.vercel.app/api/v1/conditions
NetworkAdvertised amountBillingPayee
eip155:84530.01 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913Not specifiedexact0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85
Source and evidence
{
  "description": "Reference catalog of trade/quote condition codes (the numeric `conditions` seen on trades) with names, types, data types, and SIP mappings. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.",
  "domain": "x402stock.vercel.app",
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  "extension_names": [
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  "url": "https://x402stock.vercel.app/api/v1/conditions",
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}
x402stock.vercel.appThe daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock
https://x402stock.vercel.app/api/v1/treasury-yields
NetworkAdvertised amountBillingPayee
eip155:84530.01 USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913Not specifiedexact0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85
Source and evidence
{
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  "domain": "x402stock.vercel.app",
  "evidence_mode": "raw",
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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 integration
Collection 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