What This API Does

🔨

Illinois General Contractor License Verification

Verify general contractor, residential, and commercial building licenses managed by the Illinois Department of Financial and Professional Regulation (IDFPR). Returns license classification, bond amount, insurance details, workers comp status, and complaint history.

Who Uses This API in Illinois

🏗️

Property Management Companies

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

📋

General Contractors & GCs

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

🛡️

Insurance & Surety Companies

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

Illinois General Contractor Licensing Authority

General Contractor Licenses

Illinois Department of Financial and Professional Regulation (IDFPR)

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

More Illinois License Types

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

API Endpoints

POST /contractor/verify

Verify a general contractor license in Illinois

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": "IL",
    "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": "IL", "license_type": "General Building" },
      { "type": "general-contractor", "name": "Alice Brown", "state": "IL", "license_type": "Residential" }
    ]
  }'

Example Response

{
  "status": "found",
  "state": "IL",
  "license": {
    "name": "John Smith",
    "license_number": "IL-GC-2024-XXXXX",
    "license_type": "General Building",
    "status": "Active",
    "issue_date": "2020-06-15",
    "expiration_date": "2026-12-31",
    "board": "Illinois Department of Financial and Professional Regulation (IDFPR)",
    "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 — Illinois General Contractor License Verification

Which Illinois contractor license types can I verify?

General Building, Residential, Commercial, and specialty trade classifications regulated by the Illinois Department of Financial and Professional Regulation (IDFPR).

Does the API return bonding and insurance info?

Yes — bond amount, surety company, general liability insurance, and workers comp coverage for Illinois 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 Illinois 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
Illinois