What This API Does

🔨

Washington General Contractor License Verification

Verify general contractor, residential, and commercial building licenses managed by the Washington Department of Labor and Industries — Contractor Registration. Returns license classification, bond amount, insurance details, workers comp status, and complaint history.

Who Uses This API in Washington

🏗️

Property Management Companies

Verify contractor licenses before approving renovation and maintenance work on Washington properties. Confirm bonding and insurance are current.

📋

General Contractors & GCs

Validate subcontractor licenses for Washington projects. Automate compliance checks required by project owners and lenders.

🛡️

Insurance & Surety Companies

Confirm contractor licensure status in Washington before issuing bonds or policies. Monitor license expirations across your book.

Washington General Contractor Licensing Authority

General Contractor Licenses

Washington Department of Labor and Industries — Contractor Registration

Governs General Building, Residential, Commercial licensure in Washington. Handles initial licensing, renewals, and disciplinary proceedings.

More Washington License Types

🏥 Nurse & Contractor → 🏠 Real Estate Agent → 🛡️ Insurance Agent → ⚡ Electrician → 🔧 Plumber → ❄️ HVAC Technician →

API Endpoints

POST /contractor/verify

Verify a general contractor license in Washington

curl -X POST https://license-verify-api-production.up.railway.app/contractor/verify \
  -H "Content-Type: application/json" \
  -H "X-RapidAPI-Key: YOUR_API_KEY" \
  -d '{
    "name": "John Smith",
    "state": "WA",
    "license_type": "General Building"
  }'

POST /batch

Verify multiple general contractor licenses at once

curl -X POST https://license-verify-api-production.up.railway.app/batch \
  -H "Content-Type: application/json" \
  -H "X-RapidAPI-Key: YOUR_API_KEY" \
  -d '{
    "requests": [
      { "type": "general-contractor", "name": "John Smith", "state": "WA", "license_type": "General Building" },
      { "type": "general-contractor", "name": "Alice Brown", "state": "WA", "license_type": "Residential" }
    ]
  }'

Example Response

{
  "status": "found",
  "state": "WA",
  "license": {
    "name": "John Smith",
    "license_number": "WA-GC-2024-XXXXX",
    "license_type": "General Building",
    "status": "Active",
    "issue_date": "2020-06-15",
    "expiration_date": "2026-12-31",
    "board": "Washington Department of Labor and Industries — Contractor Registration",
    "disciplinary_actions": []
  }
}

Pricing

Free

$0

50 requests/day

Pro

$9.99

1,000 requests/mo

Ultra

$29.99

5,000 requests/mo

Mega

$99.99

25,000 requests/mo

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FAQ — Washington General Contractor License Verification

Which Washington contractor license types can I verify?

General Building, Residential, Commercial, and specialty trade classifications regulated by the Washington Department of Labor and Industries — Contractor Registration.

Does the API return bonding and insurance info?

Yes — bond amount, surety company, general liability insurance, and workers comp coverage for Washington contractors where available.

Can I verify licenses across multiple states?

Yes. The same API works for all 50 states. Use the batch endpoint to verify Washington general contractor licenses alongside any other state in a single request.

Is there a free tier?

Yes — 50 free requests per day. No credit card required. Sign up on RapidAPI to get your key instantly.

General Contractor License Verification API
Washington