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Search MCP servers and agent skills by name, description, category or topic — 3 results.
MCP Server
Stale
PostcardBot/mcp-server
Send real physical postcards worldwide via AI agents. Bulk send up to 500 recipients. Volume pricing from $0.72/card.
MCP Server
Active
arbengine/mailbox-mcp
Physical mail API for AI agents. Send letters, certified mail, postcards, and batch mailings with cost previews, approval controls, tracking, and webhooks.
MCP Server
Stale
ExpertVagabond/solmail-mcp
Send physical mail with Solana payments — AI agents can compose, price, and send letters and postcards via cryptocurrency.