{"protocolVersion":"0.3.0","name":"SYNTHORA x402 Registry Watch","description":"Real-time x402 endpoint discovery and M2M market-data feed for router agents: live service listings, payTo address changes, x402 registry diff and index deltas. Every response is Ed25519-signed with per-row and whole-response provenance receipts. 0.02 USDC per call via x402 on Base; first 5 calls FREE per unique Base wallet via X-WALLET header. No accounts, no signup.","url":"https://regwatch.hergertsynthora.com/service","provider":{"organization":"SYNTHORA","url":"https://hergertsynthora.com"},"version":"1.0.0","capabilities":{"streaming":false,"pushNotifications":false},"defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"documentationUrl":"https://regwatch.hergertsynthora.com/openapi.json","skills":[{"id":"registryFeed","name":"x402 Registry Delta Feed","description":"POST JSON {since, slug?, limit<=200} -> signed delta feed of the live x402/M2M market (new endpoints, payTo changes, listings, prices) plus Ed25519 attestation receipt. For router/price-feed agents. 0.02 USDC via x402 on Base; first 5 calls free per wallet.","tags":["discovery","x402","registry","market-data","base","m2m"],"inputModes":["application/json"],"outputModes":["application/json"]}],"x402":{"protocol":"x402","network":"eip155:8453","asset":"USDC","price":"0.02","payTo":"0x6D9F318463168fF637b50E5b9a21392e97c7c167","facilitator":"coinbase-cdp"},"registrations":["eip155:8453:0x8004a169fb4a3325136eb29fa0ceb6d2e539a432/56572","eip155:8453:0x8004a169fb4a3325136eb29fa0ceb6d2e539a432/56577"]}