Send a letter from your AI agent.
Pick your client for the exact config. Every one gets the same four tools, a free sandbox, and a quote you approve before anything prints.
No setup
ChatGPT
ChatGPT can mail the letter it wrote. Add paperplane as a connector, approve the exact total, and USPS delivers it: $0.99 a letter, $12.99 Certified, no account.
Text/SMS
No printer or stamp? Text paperplane the address and what to say. It texts back one all-in price; reply YES and a real letter goes out by USPS, from $0.99.
No printer or stamp? Email the address and the letter to mail@sendpaperplane.com. paperplane replies with one all-in price; reply yes and a real letter goes out by USPS, from $0.99.
Editors
Cursor
One click adds paperplane to Cursor. The agent quotes a real USPS letter, you approve the exact total, and it mails: $0.99 a letter, $12.99 Certified, no account.
VS Code / Copilot
One block in .vscode/mcp.json lets Copilot quote and mail a real USPS letter. You approve the exact total before it prints. From $0.99, no account, free sandbox.
Windsurf
One block in mcp_config.json lets Windsurf quote and mail a real USPS letter. You approve the exact total before it prints. From $0.99, no account, free sandbox.
Cline
Add paperplane to Cline’s MCP settings with type "streamableHttp" and Cline can quote and mail a real USPS letter. You approve the exact total first. From $0.99.
Continue.dev
Four lines of config.yaml let Continue quote and mail a real USPS letter. You approve the exact total before it prints. From $0.99, no account, free sandbox.
Zed
One context_servers entry lets Zed’s agent quote and mail a real USPS letter, with no local proxy. You approve the exact total first. From $0.99, free sandbox.
JetBrains AI Assistant
One JSON block in AI Assistant’s MCP settings lets it quote and mail a real USPS letter. You approve the exact total before it prints. From $0.99, no account.
Junie
One block in .junie/mcp/mcp.json lets Junie quote and mail a real USPS letter. You approve the exact total before it prints. From $0.99, no account, free sandbox.
Kiro
One block in .kiro/settings/mcp.json lets Kiro quote and mail a real USPS letter. You approve the exact total before it prints. From $0.99, no account.
Terminal
Claude Code
One command gives Claude Code four mail tools. It quotes a real USPS letter, you approve the exact total, and it mails: $0.99 a letter, $12.99 Certified, no account, free sandbox.
Codex CLI
Two lines in config.toml let Codex CLI quote, send and track a real USPS letter. You approve the exact total before it prints. From $0.99, no account, free sandbox.
Gemini CLI
One command lets Gemini CLI quote, send and track a real USPS letter. You approve the exact total before it prints. From $0.99, no account, free sandbox.
Amp
One command with --auth none lets Amp quote, send and track a real USPS letter. You approve the exact total before it prints. From $0.99, free sandbox.
Warp
Paste one URL into Warp’s MCP settings and its agent can quote and mail a real USPS letter from the terminal. You approve the exact total first. From $0.99.
Devin CLI
One command lets Devin quote, send and track a real USPS letter. In an unattended run, a live send waits on a payment link unless you give it a credit code. From $0.99.
OpenCode
One "remote" entry in opencode.json lets OpenCode quote, send and track a real USPS letter. You approve the exact total before it prints. From $0.99, free sandbox.
Factory CLI (droid)
One droid command lets Factory quote, send and track a real USPS letter. Failures come back as structured codes, and nothing prints until the exact total is paid. From $0.99.
Grok Build CLI
Grok Build CLI reads Claude Code’s MCP config, so the same entry lets it quote and mail a real USPS letter. You approve the exact total first. From $0.99.
GitHub Copilot CLI
One command lets GitHub Copilot CLI quote, send and track a real USPS letter from the terminal. You approve the exact total before it prints. From $0.99, free sandbox.
Mistral Vibe
One [[mcp_servers]] entry in config.toml lets Mistral Vibe quote and mail a real USPS letter. You approve the exact total before it prints. From $0.99, free sandbox.