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NAICS/SIC Code Lookup — Industry Classification Codes MCP Server

@easysolutions906

Repository

Basic information

Category

Developer Tools

Transports

stdio

Author

easysolutions906

Submitted by

easysolutions906

About NAICS/SIC Code Lookup — Industry Classification Codes MCP Server

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.

#naics#sic#industry#business#classification#mcp

NAICS/SIC Code Lookup — Industry Classification Codes MCP Server config

Add this server to your MCP-compatible client using the configuration below.

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

NAICS/SIC Code Lookup — Industry Classification Codes MCP Server tools

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Overview

What is NAICS/SIC Code Lookup — Industry Classification Codes?

A Model Context Protocol (MCP) server for looking up NAICS 2022 and SIC 1987 industry codes. It provides keyword search, sector browsing, and NAICS-to-SIC crosswalk mapping. Designed for AI assistants and developers needing industry classification data.

How to use NAICS/SIC Code Lookup — Industry Classification Codes?

Install with npx @easysolutions906/naics-api. Configure as an MCP server in Claude Desktop or Cursor by adding the command to the appropriate JSON config file. Optionally set the PORT environment variable to run as an HTTP server.

Key features of NAICS/SIC Code Lookup — Industry Classification Codes

  • Look up NAICS codes with full hierarchy and SIC crosswalk
  • Search NAICS codes by keyword (e.g., “software”, “restaurant”)
  • Look up SIC codes with hierarchy and NAICS crosswalk
  • Search SIC codes by keyword
  • Batch lookup of multiple codes via HTTP endpoint
  • Browse all codes in a NAICS sector

Use cases of NAICS/SIC Code Lookup — Industry Classification Codes

  • Classify a business by entering its NAICS or SIC code
  • Find the correct industry code for a company description
  • Map between NAICS and SIC systems for legacy data
  • Explore all sub-industries within a sector
  • Automate bulk code lookups in workflows

Frequently asked questions

1

What data does the server use?

NAICS 2022 codes from the US Census Bureau and SIC 1987 codes from the Standard Industrial Classification system. Data can be regenerated with `npm run build-data`.

2

What runtime is required?

Node.js is required. The server runs via `npx` without additional installation steps.

3

What transport modes are supported?

Two transports: **stdio** (default, for local use with Claude Desktop and Cursor) and **HTTP** (enabled by setting the `PORT` environment variable, serves on `/mcp`).

4

Are there any known limitations of the data?

SIC codes have not been updated since 1987. NAICS is revised every five years; the next revision is 2027.

5

Does the server require authentication?

No authentication is mentioned in the README.

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