Texas Contractor License Verifier — MCP Server

Overview

An MCP (Model Context Protocol) server that verifies Texas plumbing contractor licenses in real-time. Powered by official TSBPE (Texas State Board of Plumbing Examiners) data with 86,849 active records across 6 license types.

Related MCP server: boo-x402-mcp

Features

• verify_license — Search by contractor name (last name, full name)

• verify_by_license_number — Look up by license number

• search_by_county — Find licensed plumbers in a specific Texas county

• list_supported_states — Free discovery tool showing coverage

Pricing

$0.05 per data query (USDC via x402 protocol). Discovery tools (list_supported_states) are free.

Data Source

Official TSBPE public CSV downloads from tsbpe.texas.gov. Auto-updated weekly via cron job (Sundays at 3am CST).

License Types Covered

• Responsible Master Plumber (9,344 records)

• Master Plumber (4,328 records)

• Journeyman Plumber (26,209 records)

• Tradesman Plumber-Limited (3,578 records)

• Plumber's Apprentice (41,566 records)

• Plumbing Inspector (1,824 records)

Connection

URL: http://149.28.238.172:8787/mcp
Transport: Streamable HTTP (POST)

Payment

This server uses the x402 payment protocol. Agents must:

1. Call tools/list (free) to discover available tools

2. Call verify_license/verify_by_license_number/search_by_county → receive 402 Payment Required

3. Pay $0.05 USDC on Base (testnet: Base Sepolia, mainnet: Base)

4. Retry with X-PAYMENT header containing the payment payload

5. Receive the verified data

Technical

• Built with FastMCP (Python) + Starlette x402 middleware

• SQLite database with indexed lookups

• PM2 process management with auto-restart

• Weekly auto-updater for fresh TSBPE data

• Facilitator: x402.org (testnet) / Coinbase CDP (mainnet)