StateLicense API
by api.statelicense.io
Companies
Added on November 12th, 2026
Checked and working on November 12th, 2026
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What it does
The StateLicense API checks US contractor licences against public state records: status, licence holder, licence class, trade classifications and dates, in 19 states including California CSLB, Texas, Florida and New York City, for example to check a contractor during onboarding. GET /v1/verify looks up a licence number and POST /v1/search finds a business by name, both answering in JSON. Free without a key for 10 lookups per IP address a day, or with a free key for 25 requests a month; the Pro plan gives 1,000 requests for 49 dollars a month.
At a glance
- API key
- Not needed · More APIs with no key
- Pricing
- Free without a key for 10 lookups per IP address a day, or with a free key for 25 requests a month; the Pro plan gives 1,000 requests for 49 dollars a month.
- From the browser
- No, call it from a server
- Formats
- JSON
- Interface
- REST, HTTP-GET
- Provider
- api.statelicense.io
- Last checked
- Working on November 12th, 2026
More information: https://api.statelicense.io/docs
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Example request
curl
curl 'https://api.statelicense.io/v1/verify?state=CA&license_number=602331'JavaScript
const response = await fetch("https://api.statelicense.io/v1/verify?state=CA&license_number=602331");
const data = await response.json();
console.log(data);Python
import requests
response = requests.get(
"https://api.statelicense.io/v1/verify?state=CA&license_number=602331",
timeout=30,
)
print(response.json())Run the JavaScript on a server, such as Node.js 18 or newer: this API does not accept calls from web pages on other sites.