NAICS/SIC Code Lookup — Industry Classification Codes

Created By
easysolutions9064 months ago
Look up NAICS 2022 and SIC industry codes. 2,133 NAICS codes, 1,498 SIC codes, keyword search, and crosswalk mappings. Required for business loans, insurance, tax filings.
Overview

MCP NAICS/SIC Server

A Model Context Protocol (MCP) server for looking up NAICS 2022 and SIC industry codes with keyword search, sector browsing, and NAICS-to-SIC crosswalk mapping.

Tools (4 total)

ToolDescription
naics_lookupLook up a NAICS code with title, hierarchy, children, and SIC crosswalk
naics_searchSearch NAICS codes by keyword (e.g., "software", "restaurant")
sic_lookupLook up a SIC code with title, hierarchy, children, and NAICS crosswalk
sic_searchSearch SIC codes by keyword

Install

npx @easysolutions906/naics-api

Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "naics": {
      "command": "npx",
      "args": ["-y", "@easysolutions906/naics-api"]
    }
  }
}

Cursor

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "naics": {
      "command": "npx",
      "args": ["-y", "@easysolutions906/naics-api"]
    }
  }
}

REST API

Set PORT env var to run as an HTTP server.

  • GET /lookup?code=541511 -- look up a NAICS code
  • GET /search?q=software -- search NAICS codes by keyword
  • GET /sector/:code -- list all codes in a NAICS sector
  • GET /sic/lookup?code=7372 -- look up a SIC code
  • GET /sic/search?q=software -- search SIC codes by keyword
  • GET /crosswalk?naics=541511 -- NAICS to SIC crosswalk
  • POST /lookup/batch -- batch lookup NAICS or SIC codes

Data Source

NAICS 2022 codes from the US Census Bureau. SIC 1987 codes from the Standard Industrial Classification system. NAICS is revised on a 5-year cycle (next: 2027). SIC has not been updated since 1987. Run npm run build-data to regenerate.

Transport

  • stdio (default) -- for local use with Claude Desktop and Cursor
  • HTTP -- set PORT env var to start in Streamable HTTP mode on /mcp

Server Config

{
  "mcpServers": {
    "naics": {
      "command": "npx",
      "args": [
        "-y",
        "@easysolutions906/naics-api"
      ]
    }
  }
}
Project Info
Created At
4 months ago
Updated At
4 months ago
Author Name
easysolutions906
Star
-
Language
-
License
-
Category

Recommend Servers

View All