Validate worldwide addresses for a penny
USPS verification, international coverage, and pay-as-you-go pricing. No monthly minimums. Credits never expire.
Try Addresspenny free — 50 credits on us
Create an account and start validating addresses.
No credit card required. No time limit.
How it works
From zero to clean addresses in under a minute.
1. Sign up free
Create an account and receive 50 free credits. No credit card required.
2. Choose your surface
Paste an address into the web form, upload a CSV, call the REST API, connect Zapier, or plug the MCP server into Claude or Cursor.
3. Pay as you go
Buy credits in packs starting at $5. One credit per validated address. Credits never expire.
What people use it for
Anywhere a bad address costs you money.
Shipping & fulfillment
Catch undeliverable addresses before you print the label. Fewer returns, fewer re-ships, fewer support tickets.
Lead & form cleanup
Standardize addresses captured from signup forms, landing pages, and checkout so your database stays consistent.
CRM & list hygiene
Bulk-clean customer addresses in your CRM or spreadsheet. Merge duplicates with confidence using standardized output.
AI agents
Let Claude, Cursor, and any MCP-compatible agent validate, standardize, and extract addresses from freeform text.
Messy in, clean out
Fix typos, expand abbreviations, add missing ZIP+4, and flag undeliverable addresses.
1600 amphitheater pkwy mountain view ca
1600 Amphitheatre Pkwy Mountain View, CA 94043-1351 Deliverable · Rooftop granularity
Developer API
Integrate address validation into your app with our REST API. Manage your API tokens and explore the docs.
Automations
Connect address validation to Zapier. Unlock workflows with thousands of apps. Automatically verify addresses from form submissions, CRM updates, and more.
AI Integration
Let AI agents validate and standardize addresses in real time. Drop into Claude Desktop, Cursor, or any MCP-compatible workflow with a two-line config.
Frequently asked questions
How much does address validation cost?
1¢ per validated address — the same flat rate for US and international lookups. Credits never expire, and there are no monthly minimums or per-seat fees.
Which countries are supported?
40+ countries, including the United States, Canada, the United Kingdom, Australia, most of Europe, and Japan. Coverage tracks Google's Address Validation API — see the current coverage list.
What data powers Addresspenny?
Addresspenny uses Google's Address Validation API under the hood, which combines authoritative postal datasets — including USPS data for US addresses — with Google's mapping data.
Is there a free trial?
Yes. Every account gets 50 free credits on sign-up. No credit card required.
Can I validate addresses in bulk?
Yes. Upload a CSV in the web app, call the bulk endpoint from the REST API, or validate up to 100 addresses per call via the MCP server.