Authoritative U.S. address API
Know the address.
Trust the result.
Validate deliverability, suggest complete addresses as users type, reverse geocode coordinates, and filter hundreds of millions of address records through one secure API.
{
"valid": true,
"deliverable": true,
"match_type": "exact",
"address": {
"line1": "433 N Camden Dr Fl 6",
"city": "Beverly Hills",
"state": "CA",
"zip": "90210-4416",
"rdi": "Commercial",
"congress": "36"
}
}
One address layer
From first keystroke to final delivery decision.
Every endpoint returns a consistent, auditable address model drawn from the same live corpus.
Validate & enrich
Resolve a complete address to authoritative components, DPV status, carrier route, vacancy, commercial classification, congressional district, timezone, and coordinates.
POST /v1/validate
Realtime suggestions
Return ranked complete-address candidates as a user types, using prefix indexes built for interactive latency.
GET /v1/suggest
Reverse geocode
Find nearby known addresses from latitude and longitude with a bounded search radius and measured distance.
GET /v1/reverse-geocode
Micro-search at national scale
Filter by ZIP, state and city, county FIPS, carrier route, DPV, RDI, congressional district, CMRA, vacancy, record type, and more—with signed cursor pagination.
POST /v1/search
Interactive console
Test the live corpus.
Paste a scoped API key, choose a lookup, and inspect the response. Keys remain in this browser tab only.
Need a key? Create an invited account or open your dashboard.
Select a tool and submit a request.
Built for developers
Contracts that stay current.
The documentation is generated from the running application, so request models, fields, authorization rules, and examples update with every deployed release.
Live OpenAPI
Explore and execute every endpoint from an authenticated Swagger interface.
Open API referenceApproved credentials
Request scoped keys, obtain administrator approval, and revoke issued keys without exposing control-plane permissions.
Request API accessPredictable pagination
Signed cursor tokens keep 189M-record searches deterministic and resistant to tampering.
Download schema