{"name":"Machine Inbox","description":"Task-scoped email inboxes for software agents: buy over Stripe MPP or x402, then read mail, extract verification codes, and reply through MCP.","endpoint":"https://machineinbox.com/mcp","transport":"streamable-http","protocolVersion":"2025-06-18","authentication":"Pass the mailbox bearer token as the token tool argument or an Authorization: Bearer header.","documentation":"https://machineinbox.com/llms.txt"}