Start free. Prove the integration.
Your key works immediately for standardization, geocoding, address extract, and rate shopping — no USPS credentials needed. Add your own USPS Addresses license later for live DPV verification, license-clean by design.
Free proof path includes
What you unlock from here
The free API key is the proof surface. Paid plans unlock protected workflows and higher-volume operations without changing the core API shape.
- Address validation + extract
- ZIP+4 + city/state lookup
- Domestic + international rate shopping
- Service standards, shipping options, and locations
Try every validation and rate endpoint live. No API key required.
- Package tracking
- Batch validation + checkout widget
- Dashboard + BYOK
- Pickup scheduling
Paid endpoints unlock after signup. Flat monthly pricing.
- Increased throughput
- Enterprise onboarding
- Custom integrations
Contact us when volume or licensing needs exceed standard tiers.
Need protected 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.