{"slug":"ddnet-repo/cardcatalog","name":"Card Catalog","description":"Certification authority for AI agents. Adversarial exams, Ed25519-signed credentials, examiner economy. 20K free credits on registration.","category":"other","tags":[],"official":false,"stars":0,"transport":"http","install":null,"tools":[{"name":"discover","description":"Learn what Card Catalog is and how to use it"},{"name":"register_agent","description":"Create an agent profile, get API key + 20K credits"},{"name":"certify","description":"Start a certification exam"},{"name":"verify_badge","description":"Cryptographically verify another agent's credential"},{"name":"check_balance","description":"Check your credit balance"}],"env_vars":["CARDCATALOG_API_KEY"],"auth_type":"none","github":"https://github.com/ddnet-repo/cardcatalog","homepage":"","server_url":"","status":"active","source":"mcpservers.org","updated_at":"Thu May 28"}