MT Travel Developer Guide: Verify AI Booking Agents with W3C Delegation Chains

Your AI booked Business Class. You approved Economy. Without a delegation chain, every booking agent's mandate is just a prompt — not a cryptographic constraint. MT Travel is a booking verification API for autonomous travel agents. It issues and verifies TravelAgentCredentials — W3C Verifiable Credentials (VCs) signed with Ed25519 — with delegation chains that bind each level of travel authority to enforceable constraints. 6 REST endpoints, 3 MCP tools, free during Early Access. What Is a TravelAgentCredential A TravelAgentCredential is a W3C VC that authorizes an AI booking agent to make travel reservations on behalf of a company or individual. It contains the agent's DID, the principal's DID, spend limits, allowed segments (flight, hotel, car rental), cabin class restrictions, and an optional delegation chain. { "type" : [ "VerifiableCredential" , "AuthorizedAgentCredential" , "TravelAgentCredential" ], "credentialSubject" : { "id" : "did:moltrust:booking-agent-001" , "principalDID"