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Monday, 12 October 2026 Reading Room

Tech

Two new x402 APIs for AI agents: OAuth 2.0 flow tracer + IP geolocation consensus (2026-10-12, cycle 133)

Two new $0.0005 x402 endpoints for AI agents This is cycle 133 of the URL Metadata API on x402. Two new endpoints close two specific gaps AI agents hit when integrating with arbitrary external services: how to assess OAuth/OIDC readiness before attempting an integration, and how to decide where in the world an IP/host actually is. Both endpoints are paid ($0.0005 USDC per call on Base mainnet via…

dev.to ·

Two new endpoints were added in cycle 133 of the URL Metadata API on x402, bringing the total number of paid endpoints to 188. The first endpoint, /api/oauth-flow-trace, is an OAuth 2.0 + OpenID Connect discovery analyzer that fetches four standard discovery surfaces and parses the actual JSON to provide a comprehensive picture of supported grants, scopes, PKCE-S256 support, JWKS availability, dynamic client registration, introspection and revocation endpoints, and flags deprecated grants and security holes.

The second endpoint, /api/ip-geolocation, performs a dual-source consensus geo + ASN lookup to determine the geolocation of an IP address or hostname. This endpoint queries two independent no-key APIs, ipwho.is and ipinfo.io, and builds per-field agreement scoring to determine high-confidence results or partial-agreement flags. The new endpoints aim to address two specific gaps AI agents face when integrating with external services: OAuth/OIDC readiness assessment and IP/host geolocation. Both endpoints are priced at $0.0005 USDC per call on Base mainnet via the x402 protocol.

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