x402 Seller Conformance Roster
Parameter-free: the Blockchain IQ x402 Conformance Index in one call. The top 1,000 x402 sellers ranked by an A to F grade from our own daily unpaid probe of their listed endpoints: valid HTTP 402, x402 v2, payment terms, schema, 7-day uptime, price range, 30-day payers and calls, with method and sources. Dated each day; never sold when the probe is over 48 hours old. Use to screen endpoints for protocol conformance before an agent pays. JSON, no API key. $0.02 per call. Blockchain IQ.
Listing completeness · 80/100
Presence of published information only. Not a security, reliability or performance score. Same rules for Datoka and external listings.
- Name and traceable source
- 10/10 · Present
- Meaningful description
- 10/10 · Present
- Connection or installation reference
- 20/20 · Present
- Dedicated documentation or source repository
- 0/15 · Missing or insufficient
- Explicit free access or numeric tariff
- 20/20 · Present
- Declared integration protocol
- 10/10 · Present
- Source updated within 90 days
- 10/10 · Present
- Declared capability names
- 0/5 · Missing or insufficient
Evaluated 2026-10-21 · Method listing-completeness-1. Scoring rules
Connect & use
Connect through the publisher’s supported interface. Any credentials or payments are handled by the provider.
x402 resource
https://www.blockchainiq.co/api/x402/v1/x402-marketRead the current payment requirements with a compatible client before authorizing a call.
Categories and declared capabilities
Topic categories are derived from publisher text for discovery, not independently verified capabilities.
The registry does not provide a verified tools list. See the observations, when available, for any tools/list check; a published tools list does not establish that execution succeeds.
Evidence, with its limits.
This listing is indexed. Any domain claim or endpoint observation appears separately with its date and limited scope. No payment execution, factual accuracy or safety certification is inferred.