Write the letter in your browser, see the whole USPS price before you pay, and keep the proof with the letter — the file fingerprint, the USPS receipt number and every step.
No card asked to start. Postage is paid letter by letter from a prepaid balance.
Four steps, all in one place.
Upload your letter as a PDF. PostKite keeps it with its fingerprint.
Add the recipient and your return address and pick the service. You see the full price before paying.
Pay from your prepaid balance, hand the letter to USPS and type the receipt number.
The proof package stays with the letter: addresses, fingerprint, receipt number, dates and what was charged.
No more paper receipts in a drawer. Each letter keeps its own file, its USPS number and its history, printable whenever you need it.
shieldFiles kept in your private vault
The exact PDF, with its SHA-256 fingerprint: any change to the file changes it.
The Certified Mail number becomes the tracking number of the letter.
Saved, paid, handed to USPS: who did what and when, in the audit log.
What changes when the letter starts in PostKite.
Not live yet. They open when the print partner is chosen.
Postcards to the houses around a finished job.
One mailing for a whole neighborhood association.
A mailing for homes you choose by the age of the roof.
A mailing you send after severe weather.
Start free. Postage is always billed per letter.
Postage is billed per letter: the USPS price of the service you pick plus the PostKite service, always shown before you pay.
About sending certified letters with PostKite.
Yes. The letter travels as USPS Certified Mail; the receipt number and the delivery come from USPS. PostKite prepares the letter, the price and the proof around it.
Today, yes: you hand the letter to the USPS counter and type the receipt number in PostKite. Buying the USPS label inside PostKite is coming next.
The USPS price of the service you pick plus the PostKite service. You see the full amount, line by line, before you pay; it leaves your prepaid balance only then.
You, or the people of your team with the Sender role. Every new account is reviewed by PostKite before its first letter.
A letter cancelled before it is handed to USPS returns its full amount to your balance.
The exact PDF with its fingerprint, both addresses, what was charged, the USPS receipt number and every step with its date, printable at any time.
Start free, see the price before you pay, keep the proof.
Start the 14-day trial