Skip to main content

Send mail from your tools

Native apps for Zapier, n8n, and Make. MCP connectors for Claude, ChatGPT, and Cursor. File pickers for Drive and Dropbox. All of it sits on the same open REST API — no API key, per-letter payment, and a free sandbox so your first run costs nothing.

$1.99

All-in First-Class price — postage, paper, and envelope included

Next business day

Your letter is printed and handed to USPS

Millions of pieces/yr

Mailed through the commercial print network we run on

100%

Refunded automatically if we can’t mail your letter

Native surfaces

See all →

How you send mail with no third-party tool at all: compose on the web, send from an email or text message, or hand it to an AI assistant directly.

Developer surfaces

Works with Claude, ChatGPT, Cursor, and any MCP-compatible agent.

REST API

Live
curl -X POST https://sendpaperplane.com/v1/orders -d '{"sandbox":true,...}'
Docs →

MCP

Live
{ "mcpServers": { "mail": { "url": "https://sendpaperplane.com/api/mcp" } } }
Docs →

CLI

Live
npx paperplane send letter.pdf --to "Maria Alvarez, 1 Main St, Richmond VA 23220"
Docs →

SDKs

Planned
# No typed client yet — the REST API is plain JSON, one fetch() call away.

Platform guides

Popular workflows

Specific trigger-to-letter setups, hand-built.

Building something else? The whole API is documented on the developer page — and sandbox mode means your first call succeeds free, before anyone signs up for anything.

Send it however you already work

We support your method too — web, email, text or the CLI, one all-in price either way.