An open-source MCP server for sending physical mail (letters, postcards, certified mail) directly from AI agents, with per-piece payment and no account signup needed.
Official mailbox.bot MCP server for AI agents. Send letters, certified mail, postcards, and receive scanned inbound physical mail with sandbox keys, approval controls, tracking, and webhooks.
MCP server for Brazilian data lookups (Pix codes, CEP, CNPJ) and web rendering tasks (Markdown, screenshots, PDFs) via a paid HTTP API with x402 billing.