How do I verify a contractor license in New Jersey?

You can search the official New Jersey board portal by hand, or call TradesAPI's GET /verify endpoint with the state, license number, and trade to get back a normalized result — valid/invalid, status, expiration, and any disciplinary actions — in one request.

What contractor trades does New Jersey license?

TradesAPI covers these New Jersey trade types today: General Contractor, Plumbing.

Is New Jersey contractor license data free to check?

The New Jersey board's public portal is free to search manually. TradesAPI adds a single normalized API across all 50 states plus DC — every new API key includes 50 free verifications.

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New Jersey · contractor license lookup

How to verify a contractor license in New Jersey

Check any New Jersey contractor license — status, expiration, and disciplinary history — through one normalized API, or look it up by hand on the state board portal.

New Jersey coverage: Operational · live status

What you can verify

Data source: Live portal scrape

Coverage: Home Improvement Contractor, multi-trade via NJDCA

Trade types

General ContractorPlumbing

New Jersey also supports name search — when you only have a contractor's name, the /search endpoint returns every matching license with full metadata.

One call. The whole picture.

The /verify response is identical in shape across every state, so your integration code never changes per jurisdiction:

GET /verify?state=NJ&license=SAMPLE-12345&trade=general

{
  "valid": true,
  "name": "SAMPLE CONTRACTING LLC",
  "license_number": "SAMPLE-12345",
  "trade": "general",
  "expiration": "05/12/2027",
  "status": "Active",
  "state": "NJ",
  "disciplinary_actions": [],
  "source_url": "https://newjersey.mylicense.com/verification/",
  "cached": false,
  "checked_at": "2026-06-22T05:14:00Z"
}

Example response showing the normalized schema. Wire it up against deterministic fixtures in the sandbox — no credit cost.

Verify New Jersey licenses programmatically

# Verify a New Jersey contractor license with one API call
curl -H "X-API-Key: YOUR_KEY" \
  "https://www.tradesapi.com/verify?state=NJ&license=SAMPLE-12345&trade=general"

The official New Jersey board portal is at https://newjersey.mylicense.com/verification/ — free to search by hand. TradesAPI wraps it (and every other state) in one API so you don't maintain 51 different scrapers.

Start verifying in minutes

Every new API key includes 50 free verifications across all 50 states + DC, plus hosted MCP access for Claude, Cursor, and any MCP-speaking agent. No credit card to start.

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Frequently asked questions

How do I verify a contractor license in New Jersey?: You can search the official New Jersey board portal by hand, or call TradesAPI's GET /verify endpoint with the state, license number, and trade to get back a normalized result — valid/invalid, status, expiration, and any disciplinary actions — in one request.
What contractor trades does New Jersey license?: TradesAPI covers these New Jersey trade types today: General Contractor, Plumbing.
Is New Jersey contractor license data free to check?: The New Jersey board's public portal is free to search manually. TradesAPI adds a single normalized API across all 50 states plus DC — every new API key includes 50 free verifications.