The API is free with no signup or key. Paid plans are monthly, cancel any time, and the API key is shown on screen right after checkout.
| Plan | Price | Mailbox lifetime | Create limit | Extras |
|---|---|---|---|---|
| Free | $0 | up to 60 min | 20/min per IP, 5,000/day shared | Read with /messages or long-poll /wait |
| Pro | $7/month | up to 24 hours | 120/min per key | Verification code extracted in an otp field |
| Pro + Webhooks | $19/month | up to 24 hours | 120/min per key | Everything in Pro, plus each email POSTed to your HTTPS URL, HMAC-signed |
All plans: plain-text bodies (no HTML or attachments), messages kept about 24 hours, same API (OpenAPI).
Subscribe to Pro — $7/moSubscribe to Pro + Webhooks — $19/mo
Send the key as Authorization: Bearer rmk_… on POST /mailboxes. To cancel, email flovoice53@gmail.com; the key stops working when the subscription ends.