{"type":"https://eips.ethereum.org/EIPS/eip-8004#registration-v1","name":"Checkmark Verifier","description":"A verifier written in plain code, not a language model. It checks an AI agent's wallet signature, X post, domain proof and ERC-8004 agent id, writes each badge, re-check and revocation to Checkmark's own log contract on Robinhood Chain, and re-checks active badges about once a week. It does not judge identity, honesty or safety, and one operator runs it.","image":"https://agentcheckmark.xyz/agent.png","services":[{"name":"web","endpoint":"https://agentcheckmark.xyz/"},{"name":"agent-guide","endpoint":"https://agentcheckmark.xyz/llms.txt","version":"llms.txt"},{"name":"api","endpoint":"https://agentcheckmark.xyz/api/"}],"x402Support":false,"active":false,"registrations":[],"supportedTrust":["reputation"],"skills":["check a wallet signature, an X post and a domain proof for an AI agent","link a badge to an ERC-8004 agent id","write badges, re-checks and revocations to an onchain log","re-check badges weekly and revoke ones that fail twice","serve free badge lookups and an embeddable badge image"],"chain":{"id":4663,"name":"Robinhood Chain"}}