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Your source for the most accurate postal address data across 245+ countries

PostGrid Works For You

Verify addresses instantly

Verify and standardize addresses in real-time so that no inaccurate addresses enter the database

CASS, SERP, PAF certified

Ensure deliverability with our USPS, Canada Post, Royal Mail, Australia Post  certified address verification API.

Scalable Restful API

Through our RESTful API Library, use Test & Live keys for easy implementation

Easy Integration

Ensure seamless integration to your stack with zero-code integration with Zapier. Detailed docs and dev support if required

Global Data of 245+ Countries

We provide the most accurate and comprehensive global data that has USPS (CASS), Canada Post (SERP), Royal Mail (PAF), Australia Post (AMAS).

Enterprise Ready Security

We ensure enterprise ready data and security as we are HIPAA, SOC-2 Type2, PCI-DSS, GDPR, PHIPA compliant.

Verify Addresses Instantly

  • Address Validation – Verify and correct addresses in real-time across the US in accordance with postal standards
  • Address Parsing – Use our freeform address parsing capabilities to clean poorly formatted addresses
  • Address AutocompleteAutocomplete addresses at the point of entry, ensuring correct data throughout your pipeline using address autocomplete API.
address verification and validation api
on time delivery

Certified & Up-to Date Data

  • CASS, SERP, PAF, AMAS Certified – Our addresses are CASS (USPS), SERP (Canada Post), PAF (Royal Mail), AMAS (Australia Post) Certified
  • Premise Level Data – We ensure accuracy of address data down to the premise level

Bulk/Batch Verification

  • Clean, Verify and Standardise addresses to local postal standards 
  • Upload and verify up to 200k addresses at a time
  • All our addresses are CASS and SERP certified ensuring a high delivery success rate
bulk address verification validation
zip code usa

Geocoding

  • Location Data – Get latitude and longitude information for any address you send through our geocoding API
  • Accuracy Report – Every geocode also includes an accuracy score along with information about how the geocode was determined

Scalable RESTful API

  • Test and Live Keys – We isolate the test and live environments so you can easily test your API calls
  • Fully Documented API Library – Every endpoint is fully documented using OpenAPI so you can access it from your favorite tools and languages
  • Built to Scale – Our infrastructure is capable of handling millions of API calls at any time
restful api
calculate direct mail cost

Zero-Code Integration

  • Zap-ready – PostGrid’s Zapier integration enables you to connect our address validation capabilities with over 1600 apps
  • Standalone Cloud Software – Use our standalone address verification software platform to verify, standardize and validate accurate addresses

Enterprise Ready Security

  • Our goal is to ensure your data complies with HIPAA rules and regulations.
  • We comply with SOC-2 Type 2, GDPR, PCI-DSS and ensure that your data is secure.
  • Ensure enterprise scale by deploying local servers.

View our security page

Our Customers Say It Best

PostGrid's Address Verification API integration with our company's CRM was easy to achieve, and support is excellent and efficient. Once implemented, accessing the address was faster and more straightforward for us to learn and access. It also ensured that the time and resources were not wasted when uploading mailing lists, as per the Local and International Postal Standards.

Enterprise Solutions Architect

After testing PostGrid Address Verification API against our existing address verification vendor, we found that PostGrid provided more detailed and accurate outcomes with fairer up-front pricing. As a result, Our delivery accuracy increased by 40% after implementing their address verification API.

VP of Technology Development

PostGrid is exceptional as their address verification API is so powerful and fixes the issues with our raw address data and helps us find the redundant entries easily- It was a challenging and time-consuming task previously. But now we have everything right in front of us in seconds and the accuracy is commendable.

Information Technology Manager

Very straightforward, fast, and reliable address standardization API. We collect address data from multiple patients, clinical records, and providers and attempt to combine them into one. Addresses are often redundant or formatted differently in this process, which is our biggest challenge. PostGrid makes it easy for us to solve both of these problems simply by appending PostGrid to our datasets.

Project Manager

API response times and data accuracy are excellent. Address matching is accurate and we haven't experienced any outages. PostGrid provides address validation for our eCommerce solution for both domestic and international addresses. Each search option can be customized easily and accurately. PostGrid is a lot more accurate than other free options on the market.

Senior Developer

Solutions for Every Industry

Insurance

Target insurance leads based on demographics and send insurance policy updates, renewals, policy claims, and billing in just a few clicks with optimal data accuracy.

Learn More

Retail & E-Commerce

Boost your E-commerce sales, customer acquisition, and retention rate with print & mail combined with address verification.

Learn More

Financial Services

Send financial statements, invoices, and customer acceptance or rejection letters in a blink of an eye. Streamline your productivity to generate and deliver financial documents with full accuracy.

Learn More

Real Estate

Connect directly with high-quality prospects from homebuyers, sellers, low-income or high-income homes, pre-foreclosures, and more with direct mail automation.

Learn More

Healthcare

Send HIPPA Compliant patient mailers, medical bill statements, invoices, EOCs, and more to help your clients manage patient communication with real-time analytics, data accuracy, and a lot more.

Learn More

One Platform with Endless Address Verification Possibilities

E-commerce Checkout Page Address Autofill

Verify Mailing Addresses for Bulk Mailing Campaigns

Point of Sale Optimization

Website Form Address Autofill

Geocoding Addresses Realtime (Latitude & Longitude)

Employment Application Checks

Food Delivery App Address Validation

Government Address Data Cleanse

Identity and Fraud Detection

Logistics & 3PL Address Validation

Validating Addresses for Custom Applications

National Change of Address

Get Started with PostGrid’s API in Seconds

Easily send mails, manage templates and verify addresses globally using API

cURL

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# Automatically parse and correct a freeform US or Canadian address
curl https://api.postgrid.com/v1/addver/verifications \
-u API_KEY: \
-d address="14-20 bay st, floor 11, toronto, on, canada"
 
# Use our international API to verify addresses around the world
curl https://api.postgrid.com/v1/intl_addver/verifications \
-u API_KEY: \
-d address[line1]="33 Nine Elms Lane" \
-d address[city]="London" \
-d address[postalOrZip]="SW11 7US" \
-d address[country]="United Kingdom"

cURL

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# List US & Canada previews for partial address input
curl https://api.postgrid.com/v1/addver/completions?partialStreet=182+Se \
-u API_KEY:
 
# List addresses from around the world, sorted by distance to user IP
curl https://api.postgrid.com/v1/intl_addver/completions?partialStreet=15&countriesFilter=UK \
-u API_KEY:

cURL

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curl https://api.postgrid.com/print-mail/v1/letters \
-u API_KEY: \
-d to[firstName]="Kevin" \
-d to[lastName]="Villena" \
-d to[addressLine1]="145 Mulberry St, Apt PH D, New York, NY 10013" \
-d to[countryCode]="US" \
-d from[companyName]="PostGrid" \
-d from[addressLine1]="90 Canal St, Suite 400, Boston, MA" \
-d from[countryCode]="US" \
-d color=true \
-d express=true \
-d template="template_4hXPyVphgFPynPyHFTJaKo" \
-d mergeVariables[verification_code]=4242

cURL

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curl https://api.postgrid.com/print-mail/v1/postcards \
-u API_KEY: \
-d to[firstName]="Kevin" \
-d to[lastName]="Villena" \
-d to[addressLine1]="145 Mulberry St, Apt PH D, New York, NY 10013" \
-d to[countryCode]="US" \
-d size="6x4" \
-d frontTemplate="template_6a3k5LqumLD7cpdD9VkQUd" \
-d backTemplate="template_oa8Au5h4DqFr1mRDLaKhJz" \
-d mailingClass="standard_class" \
-d mergeVariables[qr_code_url]="https://postgrid.com?source=postcard"

cURL

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curl https://api.postgrid.com/print-mail/v1/cheques \
-u API_KEY: \
-d to[firstName]="Kevin" \
-d to[lastName]="Villena" \
-d to[addressLine1]="145 Mulberry St, Apt PH D, New York, NY 10013" \
-d to[countryCode]="US" \
-d from[companyName]="PostGrid" \
-d from[addressLine1]="90 Canal St, Suite 400, Boston, MA" \
-d from[countryCode]="US" \
-d bankAccount="bank_k9zDtHjZmBe9ruVC4F8PZN" \
-d amount="4242" \
-d message="Here is the payment for the attached invoice." \
-d letterPDF="https://pg-prod-bucket-1.s3.amazonaws.com/assets/sample-invoice.pdf"

cURL

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# List all letters destined for New York that have left
# their final USPS facility.
curl https://api.postgrid.com/print-mail/v1/letters?search="NY out_for_delivery" \
-u API_KEY:
 
# Retrieve a check and its corresponding bank account
curl https://api.postgrid.com/print-mail/v1/cheques/cheque_dUtnqaaFTFyz9Yo56PuEfn?expand[]="bankAccount" \
-u API_KEY:

Read our API Docs

Integrates with Your Favorite Tech Stack & Tools

Easily Improve your workflow and automate print & mail through seamless integration capabilities.

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PostGrid Marketo
Post Grid Eloqua
PostGrid Hubspot
sap
microsoft dynamic
activecampaign
insightly
keap
zoho
pipedrive
twilio
netsuit
close.io
zapier

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Start transforming and automating your offline communications with PostGrid

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