Real-time contractor license verification across all 50 US states + DC plus 8 major-city portals (Chicago, NYC, Philadelphia, Detroit, Atlanta
Contractor License MCP server exists for a simple reason — assistants are far more useful when they can act on Contractor License directly instead of describing what you should do. Real-time contractor license verification across all 50 US states + DC plus 8 major-city portals (Chicago, NYC, Philadelphia, Detroit, Atlanta, Dallas, Las Vegas, Nashville). MCP server for Claude Desktop, Claude Code, Cursor, Windsurf.
Send {state, license_number, trade} — get back validity, licensee name, expiration date, status, and any disciplinary actions on file. Results are fetched live from official state portals (no stale nightly exports) and cached for 24 hours when active.
Being a remote server, there is no local install. You register the endpoint with your client, authorise it once, and the tools appear.
Once Contractor License is connected, these are the calls the assistant has available:
verify_license — Verify a single contractor license against the official state (or city) licensing portalbatch_verify — Verify up to 25 licenses in a single call. Each verification runs independently — partial failures do not block the batch. Per-item city is supportedsearch_by_name — Fuzzy-match contractors by business or individual name within a single state (or city) database. Costs 2 credits per calllist_supported_states — List every supported jurisdiction with portal URLs, current health, available trades, and registered municipal scrapers nested under each state. UseYou will need 3 environment variables: CLV_API_URL, CLV_API_KEY, YOUR_API_KEY. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
Among the database access options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Contractor License's toolset — verify_license, batch_verify, search_by_name and 1 more — is a fair guide to whether it matches your workflow. It is maintained by noquarter6; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| verify_license | Verify a single contractor license against the official state (or city) licensing portal. |
| batch_verify | Verify up to 25 licenses in a single call. Each verification runs independently — partial failures do not block the batch. Per-item city is supported. |
| search_by_name | Fuzzy-match contractors by business or individual name within a single state (or city) database. Costs 2 credits per call. |
| list_supported_states | List every supported jurisdiction with portal URLs, current health, available trades, and registered municipal scrapers nested under each state. Use this to discover what's reachable before constructing other tool calls. |
{
"mcpServers": {
"tradesapi": {
"type": "streamable-http",
"url": "https://www.tradesapi.com/mcp",
"headers": {
"Authorization": "Bearer YOUR_API_KEY"
}
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| CLV_API_URL | Endpoint or connection string the server talks to. | Yes |
| CLV_API_KEY | Credential the server authenticates with. | Yes |
| YOUR_API_KEY | Credential the server authenticates with. | Yes |
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