Sendpaper MCP MCP server

Sendpaper is an official MCP server that enables AI agents to send physical postcards and letters via USPS. It handles printing, envelope stuffing, and mailing for US addresses, including options for Certified Mail with tracking. Agents can initiate orders, and users approve payments via Stripe tokens or checkout links before items are mailed.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by Sendpaper

MCP endpoint (Streamable HTTP)

https://sendmypaper.com/mcp

Vendor documentation

What you can do with it

Send a birthday postcard to a family member
Mail a formal letter with USPS Certified Mail tracking
Automate sending physical correspondence via AI agents
Approve and pay for physical mail orders securely

Tools advertised by the last live check:

get_pricing
create_postcard
create_letter
pay_order
get_order
cancel_order

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http sendpaper-mcp https://sendmypaper.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add sendpaper-mcp --url https://sendmypaper.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable sendpaper-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "sendpaper-mcp": {
      "url": "https://sendmypaper.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "sendpaper-mcp": {
      "type": "streamableHttp",
      "url": "https://sendmypaper.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start sendpaper-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "sendpaper-mcp": {
      "type": "http",
      "url": "https://sendmypaper.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http sendpaper-mcp https://sendmypaper.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "sendpaper-mcp": {
      "url": "https://sendmypaper.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "sendpaper-mcp": {
      "serverUrl": "https://sendmypaper.com/mcp"
    }
  }
}

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