API Operational

Standard Industrial Classification

Lookup and search for 1987 U.S. Standard Industrial Classification codes and NAICS crosswalks.

Public audience Open access Active 45/100 agent readiness

Integration

Base URLhttps://sic.datasourceapi.comOpen

Documentationhttps://sic.datasourceapi.com/docsOpen

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

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

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

Authentication: No authentication is required for public lookups.

Capabilities

Business ClassificationIndustry CodesSICSIC NAICS Crosswalk

Provenance and freshness

• U.S. Department of Labor: 1987 Standard Industrial Classification. Source ↗
• U.S. Census Bureau: SIC-to-NAICS crosswalks. Source ↗

Update cadence: Static classification release with deployment-based updates.
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

SIC lookup

Look up an SIC code.

GET https://sic.datasourceapi.com/api/v1/sic/0111