# Paper Owl Mail

> Mail one printed letter, or USPS Certified Mail, to one US address from an AI assistant. The user reviews every page, both addresses and the price, and approves the charge before anything is printed. A paid letter can be cancelled for a full refund for 15 minutes.

- MCP endpoint: https://api.sendpaperowl.com/mail/mcp
- Agent brief: https://api.sendpaperowl.com/mail/muse.md
- REST API: https://api.sendpaperowl.com/mail/v1 (OpenAPI https://api.sendpaperowl.com/mail/openapi.json)
- Terms: https://sendpaperowl.com/legal/terms#mail

## Tools

- create_mail_draft(from, to, service, and one of text, pdf_base64, pdf_url): Create mail draft
- send_mail(draft_id, payment_token, attest_sender_and_content: true): Pay for and mail letter
- get_mail_status(draft_id): Get mail status
- cancel_mail(draft_id): Cancel letter

## Prices

- First-Class letter: $2.99 covers up to 3 pages, plus $0.25 for each page after that, up to 5 pages.
- Certified Mail: $10.99 covers up to 3 pages, plus $0.25 for each page after that, up to 5 pages.
- Certified Mail with electronic return receipt: $13.99 covers up to 3 pages, plus $0.25 for each page after that, up to 5 pages.

## Testing

Recipient name "Paper Owl Mail Test Desk", any US address: charged, never printed, refunded in full automatically. Cancelling during the 15-minute hold (cancel_mail, or the button on the review page) refunds the charge at once, so the cancel path can be tried too.