apix402

Gold402 Verified. Hand-reviewed and on the curated list — curation is the bar. The stamp means a human read this entry and the endpoint answered when we knocked. It is not a delivery test: we have not paid this service and graded what came back, so treat it as "reachable and speaks the protocol," never as "this is worth the money."

Sixteen paid endpoints for agents, each answering against the source that decides rather than a summary of it: DAO proposal execution, Safe owner/threshold/module drift, oracle staleness per feed, Aave wstETH depeg exposure, token vesting and insider early-sale checks, plus package, advisory, MCP-server, RPC and x402-listing checks read from the registry or the endpoint itself; $0.001-$0.05 USDC per call on Base, no signup; every route also has a `/preview` path that returns the response shape and a worked example rather than running the check. ([x402](https://api402x.com/.well-known/x402)) ([OpenAPI](https://api402x.com/openapi.json))