Start free. Prove it on your own data.
The key works the second you have it — standardization, geocoding, and address extract, 1,000 lookups a month, no card. USPS verification requires a paid plan and purchased credits. Start Starter with $79 initially: $29/month plus $50 prepaid funding.
Free tier includes
Free access uses Census and local reference data only. Connecting your own USPS credentials does not bypass paid access or funding requirements.
What you unlock from here
Prove it free on your own data. Paid plans unlock paid workflows and higher volume without changing the API shape.
- Address standardization + extract (US Census)
- Street-level geocode + ACS demographics demo
- Free operations use Census and local reference data only
- No paid USPS or AI provider calls
Standardize and geocode with Census data. USPS verification requires a paid entitlement and purchased credits; Census answers are not DPV.
- Package tracking
- Batch validation + checkout widget
- Dashboard + webhooks
- Pickup scheduling
Paid workflows require current payment. Platform USPS verification additionally requires 10 purchased credits ($0.01) per address; no automatic top-up.
- Increased throughput
- Enterprise onboarding
- Custom integrations
Contact us when volume or licensing needs exceed standard tiers.
Need paid workflows, higher limits, or enterprise onboarding?See paid plans →
Your free API key is ready.
Copy it now — it will only be shown once.
Free API Key
Try it now
curl "https://api.revaddress.com/api/address/validate?streetAddress=1600+Pennsylvania+Ave+NW&city=Washington&state=DC&ZIPCode=20500" \
-H "X-API-Key: YOUR_KEY"
# Need unit recovery? Add secondaryAddress and re-run with the same base address.
curl "https://api.revaddress.com/api/address/validate?streetAddress=1600+Pennsylvania+Ave+NW&secondaryAddress=Suite+100&city=Washington&state=DC&ZIPCode=20500" \
-H "X-API-Key: YOUR_KEY"Public examples use a neutral landmark fixture. When USPS finds the building but needs a unit, keep the base address and add secondaryAddress.
Unlock intelligence scoring, fraud_risk (6 weighted signals), batch validation (50 / call), Checkout Guard widget, and Logistics Complexity Index — all same API shape.
The same trust score you saw on /try-it, plus checkout.risk_detected webhooks at ≥ 0.60.
Save this key securely — paste it into the dashboard to manage your account and expand into tracking, intelligence, batch validation, and BYOK when you are ready.