Send by text
Send real mail from a text.
Text a recipient and a letter. We text back a quote. Reply YES. It's in the mail.
Opens Messages, addressed to paperplane ((555) 010-0143), with a starter message already typed in. On a computer, text yourself the link below instead.
paperplane · (555) 010-0143
On a computer? Text yourself the link.
We'll send a link back to this page, so you can open it on your phone and text it in from there.
USPSHow sending by text works.
Text a recipient and a letter. We text back a quote. Reply YES. It's in the mail.
- Step 01
Text the recipient
Share a Contact card, use a TO: block, or write it out: "send a letter to Ada Lovelace, 101 Spear St, San Francisco CA 94105."
- Step 02
Say it, get a quote back
Describe what the letter should say in plain language. paperplane texts back one all-in price for that exact letter; nothing mails until you confirm it.
- Step 03
Reply YES. It's in the mail.
A yes-style reply to that quote is the only thing that sends it. It prints, goes to USPS, and the tracking link comes back by text.
Certified Mail, minus the trip.
Same USPS service, same proof of mailing. What changes is the printer, the envelope, the form and the line.
| What | paperplane | At the counter |
|---|---|---|
| Printer, envelope | not needed | yours |
| PS Form 3800 | done for you | by hand |
| Address check | before you pay | Not available |
| Time | 2 min | 10 min + line |
| Proof of mailing | emailed, kept | a paper slip |
| Price, all in | $12.99 | fees + your costs |
›See the long version
Certified Mail, at the counter
- Write the letter, print it, and find an envelope that fits it.
- Address it by hand — including a return address, which USPS requires on every certified piece.
- Drive to the post office during opening hours and join the line.
- Fill in PS Form 3800 at the counter, peel it, and stick it on the envelope yourself.
- Decide at the window: the paper green card (PS Form 3811) or the electronic Return Receipt.
- Pay at the window, in cash or card, plus your own printing and envelope.
- Keep the stamped Form 3800 somewhere you will still have it in a year. It is your only proof of mailing.
Ten minutes at the counter with no line. Then do it again for the next recipient.
Certified Mail, from where you are
- Paste the letter, or upload the PDF.The composer renders the exact pages that will print — fonts, pagination, everything.
- Type the two addresses.Both are checked against USPS data before you are asked to pay.
- Pay $12.99, or $14.99 with the electronic Return Receipt.We print it, seal it, and hand it to USPS the next business day. Tracking number by email.
About two minutes. No form, no line, no slip to keep.
Or hand it to an assistant: the same send runs over MCP, the API, or the CLI.
$14.99, or the trip.
- paperplane
- $14.99 all in, with the electronic Return Receipt, sent from wherever you are and handed to USPS the next business day.
- At the counter
- The same USPS fees, plus your printer, an envelope, the drive, the line and PS Form 3800 by hand.
The fees go to USPS either way. The $14.99 buys not making the trip.
Built for three kinds of sender.
Three jobs, one send flow, one all-in price. Each links to the guide that goes deeper.
People who need it to hold up
The letter is the evidence: Certified Mail, a checked address, and a tracking page you can hand to a lawyer.
For the letter that has to hold up →People mailing for other people
Upload a CSV of clients or tenants; every row becomes its own individually addressed letter.
For mailing a list without mail-merge →Developers and AI agents
An MCP endpoint and REST API with a free sandbox. A person approves every payment link.
For the agent and developer docs →
Four sends, start to finish.
We haven't launched, so there is no one to quote yet. These are written examples of jobs the product does today: the people are made up, the capabilities are not.
A solo founder sending a contract notice
The agreement says notice by certified mail, return receipt requested — so that is exactly what gets picked, and the receipt records both the mailing and who signed for it. Certified envelopes never carry our mark, so the letter arrives looking like it came from the company that sent it.
A property manager mailing 40 tenants the same notice
A CSV export becomes 40 individually addressed First-Class letters in one pass — no mail-merge document, no campaign platform. Rows with a repaired ZIP or a missing city are flagged before anything prints, and each letter is tracked on its own afterwards.
A tenant chasing a security deposit
The demand goes Certified with an electronic Return Receipt, which is what makes the statutory clock provable rather than merely started. That receipt records who signed for it and when — the exact record a security-deposit dispute turns on.
An engineer wiring mail into an agent
The agent quotes the letter for free, then calls send and gets back a payment link for a human to approve — it cannot spend on its own. The same path runs end to end in the sandbox, free, with nothing printed.
One price. Postage included.
Printing, the envelope and USPS postage are in the number, no matter which surface you send from.
$0.99
First-Class letter
1 page, black and white, envelope and postage included
Extra pages $0.25 · Color +$0.50/page · Tracking +$0.99
$12.99
Certified Mail
Proof of mailing and USPS tracking
The one landlords, courts and the IRS take seriously
$14.99
Certified + Return Receipt
Adds a signed electronic proof of delivery
The signed delivery record, emailed as a PDF
$24.99
Priority Mail
Flat-rate envelope, 1 to 3 day delivery
For the letter that cannot wait
Full detail on the pricing page.
Send it by text.
Opens Messages, addressed to paperplane ((555) 010-0143), with a starter message already typed in. On a computer, text yourself the link below instead.
✓ You approve the exact total✓ No account neededFrom $0.99
Common questions
Can I text paperplane on iMessage today?
Yes. Text a recipient and letter content to paperplane on iMessage, get a quote back, and reply to confirm and send.
Does this work on regular SMS and Android, or only iMessage?
Today it is iMessage. "Text" is the name people search for, so that is the public name; the delivery rail underneath is iMessage-specific for now. True SMS/RCS to Android is a separate piece of infrastructure.
Do I have to use a special format?
No. Plain language works. A TO: block or a shared Contact card also works and skips straight to exact parsing.
What if I text yes to the wrong thing?
You cannot, by construction: a confirmation is bound to one specific quote — the exact recipient, letter, and price it was minted for — not to whatever the last message in the thread happened to be.
What does it cost?
Whatever the quote texts back: $0.99 First-Class, $12.99 Certified, $14.99 Certified with the electronic Return Receipt, $24.99 Priority. Extra pages $0.25 each, color $0.50 a page, tracking $0.99 on First-Class.
Other ways to send
We support your method too — web, email, text or the CLI, one all-in price either way.