Send a letter from VS Code / Copilot.

Add paperplane to VS Code’s .vscode/mcp.json and Copilot can quote and send a real USPS letter — no account required, free sandbox mode included.

Free to preview — see the exact PDF before you pay. Sending starts at $1.99, no account required.

Set it up in VS Code / Copilot

Step 1

Add to .vscode/mcp.json

Top-level key is "servers", not "mcpServers" — VS Code’s own file. Requires VS Code 1.101+.

{
  "servers": {
    "paperplane": { "type": "http", "url": "https://sendpaperplane.com/api/mcp" }
  }
}

Try it: free, nothing mailed

Tell your agent:

Using the paperplane tools, quote a 1-page certified letter to Property LLC, 1 Main St, Richmond VA 23220, then send it in sandbox mode.

Not on VS Code / Copilot? Any surface works.

The same three calls from the CLI, any MCP client or plain REST. Sandbox is free and mails nothing.

Send a letter

{
  "servers": {
    "paperplane": { "type": "http", "url": "https://sendpaperplane.com/api/mcp" }
  }
}

All agents · API docs

Common questions

Is VS Code’s config shaped like everyone else’s?

No — the top-level key is "servers", not the "mcpServers" most other clients use, and it requires VS Code 1.101 or newer. Use the "MCP: Open User Configuration" command for a user-wide install instead of a per-project file.

What can Copilot do with it?

The same three tools every client gets — quote_letter, send_letter, and get_letter_status — plus buy_credits for pre-funding sends. Postcards are live too (from $1.99) via the REST API’s format field, not yet exposed as an MCP tool argument.

How much does sending cost?

Letters start at $1.99 for First-Class; Certified Mail starts at $12.99. Sandbox mode lets you try the full flow for free first.