{"name":"Courio","description":"Mail real paper letters worldwide through an API built for AI agents: get a quote, create the letter, pay (Stripe link, or by the agent itself with MPP card tokens or x402), no account.","mcp":{"url":"https://api.sendcourio.com/mcp","transport":"streamable-http","method":"POST (JSON-RPC 2.0)"},"openapi":"https://api.sendcourio.com/openapi.json","agent_card":"https://api.sendcourio.com/.well-known/agent-card.json","server_card":"https://api.sendcourio.com/.well-known/mcp/server-card.json","x402":"https://api.sendcourio.com/.well-known/x402","llms_txt":"https://sendcourio.com/llms.txt","docs":"https://sendcourio.com/agents","terms":"https://sendcourio.com/terms","quote":"POST https://api.sendcourio.com/v1/letters/quote"}