Validate every subscriber address before you mail
Pelcro's CASS-certified address verification standardizes and validates mailing addresses in real time, then appends the USPS data that qualifies your mail for automation discounts — so you stop paying to send issues that never arrive.
By submitting your email, you agree to opt in to marketing emails.
- CASS-certified
- Real-time validation
- USPS Publication 28
Already trusted by leading publishers worldwide
Pelcro AI Studio · AI coding agent
Change signup flows from a prompt
Copy a prompt into Pelcro AI Studio. It writes the signup change against the Pelcro SDK and shows it right away in the live preview.
Try these in Pelcro AI StudioSignup fields
“Collect first name, last name and job title at signup”
Newsletter signup wall
“Build a newsletter signup wall”
Improve and simplify your deliveries
Maintain mailing-list accuracy while cutting postage costs
Bad addresses cost twice — once to print and mail, again when mail comes back. Pelcro fixes them before they ship.
Keep your list clean and accurate
Every address is parsed, corrected, and standardized to USPS Publication 28 format at the point of entry — so misspellings, bad suffixes, and wrong directionals never reach your mail file.
Qualify for USPS automation discounts
Pelcro appends Carrier Route, eLOT, and Delivery Point codes to every record — the exact data USPS requires to presort your mail and unlock automation postage rates.
Reduce mailing costs
DPV validation flags undeliverable addresses before they ship, so you stop spending postage and print on issues that come back as returned mail.
Deliver a better subscriber experience
Confirmed, deliverable addresses mean subscribers actually receive every issue — fewer missed deliveries, fewer complaints, and fewer churn-inducing fulfillment gaps.
How it works
Every address runs through the same five steps
From a messy string typed at sign-up to a presort-ready record — automatically, in real time.
- 01
Parse
Raw address strings are broken into structured components — primary number, street, unit, city, state, ZIP.
- 02
Standardize
Each component is reformatted to USPS Publication 28 standards — consistent abbreviations, suffixes, and directionals.
- 03
Correct
Misspellings, wrong suffixes, and missing directionals are detected and fixed against USPS data.
- 04
Validate
The address is confirmed as a real, deliverable USPS destination — or returned with troubleshooting detail.
- 05
Enrich
Delivery-optimization data is appended: ZIP+4, Delivery Point, Carrier Route, eLOT, DPV status, and more.
What gets appended
The USPS data that turns an address into postage savings
Validation confirms an address is real. Enrichment is what makes it cheaper to mail. Pelcro appends the USPS-standard codes that qualify your mail for automation rates and route it efficiently — on every record, automatically.
Applied in real time
ZIP+4 Code
ZIP+4®Pinpoints a specific delivery segment for geographic precision.
Delivery Point Code
DPCEnables barcode sorting down to the individual mailbox.
Carrier Route Code
CRRTGroups mail by carrier walk to unlock presort postage discounts.
eLOT Code
eLOT®Sequences mail in the carrier's line-of-travel delivery order.
DPV Status
DPV®Confirms the address is a real, deliverable point — reducing returns.
County & FIPS Code
FIPSAppends county name and code for geographic reporting.
Who it's for
Built for circulation & fulfillment teams
Clean lists before every mailing
Invalid, incomplete, and outdated addresses are caught automatically, so each issue ships against a verified file — not a guess.
Fewer returns, lower costs
Removing undeliverable addresses before export means less wasted print and postage, and a mail file that qualifies for USPS automation rates.
Hand off presort-ready data
Standardized, enriched records flow straight to your presorting and fulfillment partners — no manual cleanup in between.
For developers
Verify addresses anywhere they enter your system
Open API
Validate an address from your own front-end or sign-up flow.
Core API
Cleanse and enrich addresses server-side across your workflows.
Platform address form
Verification runs inline wherever subscribers enter an address in Pelcro.
Returns the standardized, enriched address.
Returns a suggested fix for a near-match.
Returns an error with troubleshooting detail.
See it in action
Address cleansing and enrichment, end to end
Watch how Pelcro validates, standardizes, and enriches subscriber addresses in real time to cut undeliverable mail and improve fulfillment.
Get started
Stop paying to mail bad addresses
See how Pelcro validates subscriber addresses, qualifies your mail for USPS automation discounts, and cuts returned mail — in one demo.
By submitting your email, you agree to opt in to marketing emails.