# StateLicense API

Category: [Companies](https://free-web-services.com/web-services/open-data/companies/)  
Page: https://free-web-services.com/web-services/open-data/companies/statelicense-api.html  
Documentation: https://api.statelicense.io/docs

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.

- API key: Not needed
- 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

Example request:

```sh
curl 'https://api.statelicense.io/v1/verify?state=CA&license_number=602331'
```

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.