API Operational

North American Industry Classification System

Lookup, search, revision history, and crosswalks for NAICS industry classifications.

Public audience Open access Active 45/100 agent readiness

Integration

Base URLhttps://naics.datasourceapi.comOpen

Documentationhttps://naics.datasourceapi.com/docsOpen

Repositoryhttps://github.com/coopalliance/cca-cucm-servicesOpen

JSON metadatahttps://services.datasourceapi.com/api/v1/services/naicsOpen

Agent-readable Markdownhttps://services.datasourceapi.com/services/naics.mdOpen

Authentication: No authentication is required for public lookups.

Capabilities

Business ClassificationIndustry CodesNAICSRevision Crosswalks

Provenance and freshness

• U.S. Census Bureau: NAICS 2007, 2012, 2017, and 2022 classifications, revision history, and crosswalks. Source ↗

Update cadence: Release-based updates; an automated deployment schedule was not located.
Metadata verified: 2026-09-03

Agent readiness

Limited · 45/100 45%

Public docs exist, but a directly attributable implementation repository and OpenAPI URL were not confirmed.

Example queries

NAICS lookup

Look up a NAICS code.

GET https://naics.datasourceapi.com/api/v1/naics/541511