{"name":"northstar-trustrail","version":"0.2.0","description":"Independent bounded OpenAPI contract diffs and sampled GET response acceptance checks.","status":"deployed-pilot","serviceUrl":"https://northstar-trustrail-checker.northstar-trustrail.workers.dev","endpoints":{"http":"https://northstar-trustrail-checker.northstar-trustrail.workers.dev/v1","mcp":"https://northstar-trustrail-checker.northstar-trustrail.workers.dev/mcp"},"protocols":["HTTPS JSON","MCP Streamable HTTP JSON-response mode"],"mcpProtocolVersions":["2025-11-25","2025-06-18","2025-03-26"],"skills":["contract_diff","live_check"],"inputFormats":["OpenAPI 3.0.x JSON"],"freeTier":{"sharedCallsPerDay":25,"maxRequestBytes":65536,"maxGetSamples":3},"optionalPayment":{"enabledByDefault":false,"protocol":"x402 v2 exact","priceUSD":"0.03","asset":"USDC","network":"eip155:8453","payTo":"0x7C1E3f1aB2f3a65e0559A65dAF4e5E51244B66b6"},"limitations":["A descriptive service card, not an A2A protocol implementation or registry certification.","Unsupported schema semantics return inconclusive with pass false.","Live checks require operator-approved public HTTPS origins and caller authorization.","Deployed on Cloudflare Workers Free as a low-volume pilot (shared 25 free calls/day). External MCP SDK interoperability and onchain settlement have not been tested; payments are disabled."]}