NAICS 2022 industry codes and SOC 2018 occupation codes: lookup, search, hierarchy and industry-occupation links from Census and BLS.
payments ON MAINNET (real money) · 8 live endpoints
| Endpoint | Price | What it answers |
|---|---|---|
GET /code-crosswalk-hint | $0.03 | Link a NAICS industry to its top SOC occupations, or a SOC occupation to its top industries, from the BLS employment matrix. |
GET /code-validate | $0.02 | Check whether a code is a valid NAICS 2022 or SOC 2018 code, at what level, and which system it belongs to. |
GET /naics-children | $0.02 | List the codes one level below a NAICS 2022 code (sector to national industry); omit the code to list the 20 sectors. |
GET /naics-lookup | $0.02 | NAICS 2022 code to title, level (sector to national industry) and full parent chain. Census Bureau data. |
GET /naics-search | $0.02 | Search NAICS 2022 industry codes by words in the title or a code prefix; optional level filter; capped at 50. |
GET /soc-children | $0.02 | List the codes one level below a SOC 2018 code (major to minor to broad to detailed); omit the code for the 23 major groups. |
GET /soc-lookup | $0.02 | SOC 2018 occupation code to title, level (major group to detailed occupation), parent chain and US employment. |
GET /soc-search | $0.02 | Search SOC 2018 occupations by words in the title or a code prefix; optional level filter; capped at 50. |
GET /catalog returns this list as JSON. Activity hub · uptime.
Classification data from the US Census Bureau (NAICS 2022) and the Bureau of Labor Statistics (SOC 2018 and the 2025-35 National Employment Matrix), US public domain, provided as is. Code lists are revised periodically; the industry-occupation links are BLS employment estimates grouped by BLS matrix industries, not a legal crosswalk. Not for regulatory, licensing, tax or eligibility decisions; verify at census.gov/naics and bls.gov/soc. Every paid response carries a disclaimer field.