NAICS/SIC Code Lookup — Industry Classification Codes

Name: NAICS/SIC Code Lookup — Industry Classification Codes
Author: easysolutions906

@easysolutions906

About NAICS/SIC Code Lookup — Industry Classification Codes

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

Basic information

Config

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

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

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

FAQ from NAICS/SIC Code Lookup — Industry Classification Codes

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.

What runtime is required?

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

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).

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.

Does the server require authentication?

No authentication is mentioned in the README.

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