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arbengine/mailbox-mcp
by arbengine
active
Physical mail API for AI agents. Send letters, certified mail, postcards, and batch mailings with cost previews, approval controls, tracking, and webhooks.
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0 views2 on GitHub(as of 8/16/2026)About
Physical mail API for AI agents. Send letters, certified mail, postcards, and batch mailings with cost previews, approval controls, tracking, and webhooks.
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https://github.com/arbengine/mailbox-mcpNo verified MCP endpoint is on file for this listing yet.
Service Details
- Protocol
- —
- Pricing
- free