ORIGINAL PUBLIC DATA · LIVE JSON · PROVENANCE

The public x402 dataset behind ECHO.

SCRIPTMASTERLABS x402 ECHO retains observations of x402 resources, providers, pricing and usage so researchers, agents and developers can inspect what was actually observed instead of relying on copied directory claims.

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Live verified summary

The values below are loaded from the public ECHO JSON. If verified evidence is temporarily unavailable, this page says unavailable instead of manufacturing a replacement.

Resources observed
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Providers observed
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Price observations retained
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Lowest observed positive price
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Waiting for verified evidence.

What makes this dataset useful

Observed, not inferred. Provider, resource, pricing and usage entries come from retained evidence. ECHO does not convert missing evidence into a negative claim.

Time-aware. Current observations carry timestamps. x402 prices and availability can change, so cached values should not be used as payment authority.

Machine-readable. The live JSON, provider feed, search endpoint, truth manifest and methodology are publicly addressable so agents can inspect the evidence directly.

Payment-safe. A 402 challenge is a payment requirement, not settlement proof. Exact spending terms must come from the fresh target resource before a caller authorizes payment.

Fields and interpretation

resources_observed count of retained observed x402 resources providers_observed count of retained observed providers price_observations_retained retained pricing observations lowest_observed_positive_price lowest positive observed price in retained evidence calls_30d observed 30-day calls when usage evidence exists unique_payers_30d observed distinct payer evidence for a resource

Provider-level unique payer counts are not naively summed across resources because the same payer may use more than one endpoint.

How to cite ECHO

When using an ECHO observation, cite the SCRIPTMASTERLABS x402 ECHO dataset together with the observation timestamp and the evidence/source URL returned by the feed. Avoid wording such as “all x402 providers” unless the evidence actually establishes exhaustive coverage.

Source: SCRIPTMASTERLABS x402 ECHO Dataset: https://www.scriptmasterlabs.com/x402-dataset Live evidence: https://www.scriptmasterlabs.com/api/x402-echo-live Truth manifest: https://www.scriptmasterlabs.com/.well-known/x402-echo-truth.json

Related buyer tools

ECHO is market intelligence, not a paid-call executor. To buy a specific job, use the exact task page: Web Scraping API, URL to Markdown, Provider Trust, Fact Verification, Stock Quote, Currency Conversion, or Web Research.