Lake HoldingsAddress Intelligence

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.

Read-only sourceScoped API keysLive OpenAPIGigaCluster hosted
POST /v1/validate
DPV confirmedCommercial · Zip9 precision
{
  "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"
  }
}
189.4Msearchable records
48address fields
4core lookup modes
0source write operations

One address layer

From first keystroke to final delivery decision.

Every endpoint returns a consistent, auditable address model drawn from the same live corpus.

01

Validate & enrich

Resolve a complete address to authoritative components, DPV status, carrier route, vacancy, commercial classification, congressional district, timezone, and coordinates.

POST /v1/validate
02

Realtime suggestions

Return ranked complete-address candidates as a user types, using prefix indexes built for interactive latency.

GET /v1/suggest
03

Reverse geocode

Find nearby known addresses from latitude and longitude with a bounded search radius and measured distance.

GET /v1/reverse-geocode
04

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.

Ready
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 reference

Approved credentials

Request scoped keys, obtain administrator approval, and revoke issued keys without exposing control-plane permissions.

Request API access

Predictable pagination

Signed cursor tokens keep 189M-record searches deterministic and resistant to tampering.

Download schema

Lake Holdings developer access

Sign in

Request administrator-approved API keys, view usage policy, and run address tools.

Protected by designArgon2id passwordsSecure, HttpOnly sessionsCSRF-protected changesSingle-use invitations

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Credentials

API keys

Submit one request per application and environment. An administrator must approve it before activation.

Requests

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Issued keys

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Live data

Address tools

Open the public console and test a key against each address endpoint.

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POST /v1/validateExact validation and enrichment
GET /v1/suggestPrefix address autocomplete
GET /v1/reverse-geocodeNearby addresses by coordinates
POST /v1/searchIndexed field-level search
Requested scopes

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