MAILSNAIL PRICING
Pay per piece.
Two ways to pay, both at our cost. No subscription. Preview a letter and its price before you send.
| Mail type | Pay for one letter by card | From a prepaid balance |
|---|---|---|
| First-class letterA letter printed and mailed through USPS. | $1.51 | $1.21 |
| Certified letterCertified Mail tracking and proof of mailing. | $8.83 | $8.61 |
| Certified + electronic return receiptCertified Mail with an electronic delivery signature record. | $11.83 | $11.64 |
| Certified + physical return receiptCertified Mail with a signed green card mailed back to the sender. | $14.42 | $14.27 |
Why the two prices differ: a single card payment carries Stripe's whole processing fee (2.9% + 30¢), while a prepaid balance (default top-up $25) spreads that fee over many letters.
Priced at our cost
Every piece is priced at what it costs us: our print and postage supplier's price plus card processing, with no markup. The prices above are for one page in black and white. Extra pages and color are also priced at our cost.
We read the price pages of fourteen other services that mail a letter from Claude or ChatGPT. See all fifteen side by side.
Check the proof before paying
Call preview_letter for a proof PDF and the exact price. It shows both prices: the price from a prepaid balance and the price to pay for just that letter by card. Previewing does not charge you or mail anything. Review the proof, recipient, and price, then confirm the send.
Two ways to pay
Connect your agent and sign in. When your balance can't cover a letter, your assistant offers two Stripe links. Pay for just this letter is a one-time payment of the card price; your card is not saved. Add funds to your balance is a one-time payment by default and your card is not saved; the default amount is $25 and the minimum is $10, and each send then draws from the balance at the lower price. Auto-reload is optional: you can opt in so the balance refills itself, and turn it off any time. Read how billing, auto-reload, and refunds work.
If your agent can pay with a Stripe Shared Payment Token, it can pay for a letter over the REST API with no account. That is the card price, and the preview shows it as pay_per_letter_cents.
Free tools
Address verification, letter previews, balance checks, and delivery-status lookups do not incur a per-piece charge.
Using your own print provider?
You can self-host MailSnail with Click2Mail or Lob. Your provider bills you directly at its own rates. See self-hosted setup.