Look up or search NAICS 2022 industry classification codes...
Look up or search NAICS 2022 industry classification codes (US Census Bureau, public domain). Pass code for an exact NAICS code — 2–6 digits or a combined sector like 31-33 — and get its official title, hierarchy path, full official description, activity index terms, and direct child codes. Or pass query for free-text search (e.g. 'software publishers', 'coffee shop') over titles plus the official ~20k-entry activity index → ranked candidate codes, optionally filtered by level (2=sector … 6=national industry). Ground truth for industry coding in KYC, business registration, government filings, and ERP vendor/customer setup.
Request
- Base URL: https://2s.io
- URL: https://2s.io/api/business/naics
- Auth: API key in header PAYMENT-SIGNATURE
Query parameters
Exact NAICS code (2–6 digits, or a combined sector range like 31-33). XOR with query.
Free-text industry or activity description to search. XOR with code.
Search mode only: restrict results to one hierarchy level (2=sector … 6=national industry).
Search mode only: max results, 1–50, default 20.
Try before you buy. Set to 1 for one free real call per endpoint per hour — no wallet or payment needed — to verify the endpoint before paying. Equivalent to sending the "X-2s-Trial: 1" request header. Listed only on operations that offer a trial; the others always answer 402.
Response
Changes
No recorded changes to this operation across all 1 revision of this API.