California licensed contractors from the CSLB (Contractors State License Board)
California licensed contractors from the CSLB (Contractors State License Board) public Data Portal for one license classification (e.g. B, C-10 Electrical, C-36 Plumbing), optionally one county: license number, business name and type, address, phone, county, issue/expiration dates, classifications and status; county lists add bond and workers' comp insurer. Filter by city; paged.
Answeringour last check, 2026-10-24
1 of 1checks answered this week
34 msmedian answer time
$0.002listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://api.companyrecords-api.workers.dev/api/b2b/cslb-california
| Category | Everything else |
|---|---|
| Provider host | api.companyrecords-api.workers.dev |
| Networks | eip155:10, eip155:137, eip155:143, eip155:42161, eip155:42220, eip155:43114, eip155:480, eip155:5042, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, xrpl:0 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-24 | valid payment request | 402 | $0.002 | 34 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"classification": "C-11",
"county": "Alameda",
"limit": "10"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"city": {
"description": "Keep only this city (exact, case-insensitive)",
"type": "string"
},
"classification": {
"description": "CSLB classification code, e.g. A, B, C-10, C-36, C-61/D-12",
"type": "string"
},
"county": {
"description": "California county name, e.g. Los Angeles (recommended for big classes like B or C-10)",
"type": "string"
},
"limit": {
"description": "Contractors to return, 1 to 200 (default 50)",
"type": "string"
},
"offset": {
"description": "Skip this many (paging)",
"type": "string"
}
},
"required": [
"classification"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}