NAICS Code Lookup
Look up NAICS (North American Industry Classification System) codes. Search by keyword, browse hierarchy, and convert between 2022 and 2017 versions. Official data from U.S. Census Bureau.
10 endpoints
The in-depth APIMemo review for this API hasn't been published yet —
the data below comes straight from the public marketplace listing.
NAICS Code Lookup endpoints
| Method | Endpoint | Description |
|---|---|---|
| GET |
get_hierarchy_api_v1_hierarchy__code__get /api/v1/hierarchy/{code} |
Get the full hierarchy for a NAICS code (parents and children). - **code**: The NAICS code to get hierarchy for |
| GET |
get_crosswalk_api_v1_crosswalk__code__get /api/v1/crosswalk/{code} |
Get the 2017 NAICS equivalent for a 2022 code. - **code**: The 2022 NAICS code |
| GET |
get_by_level_api_v1_level__level__get /api/v1/level/{level} |
Get all NAICS codes at a specific hierarchy level. - **level**: 2=Sector, 3=Subsector, 4=Industry Group, 5=NAICS Industry, 6=National Industry |
| GET |
search_codes_api_v1_search_get /api/v1/search |
Search NAICS codes by title or code number. - **q**: Search query (searches in title and code) - **limit**: Maximum number of results |
| GET |
get_crosswalk_reverse_api_v1_crosswalk_reverse__code__get /api/v1/crosswalk/reverse/{code} |
Get all 2022 NAICS codes that correspond to a 2017 code. - **code**: The 2017 NAICS code |
| GET |
list_codes_api_v1_codes_get /api/v1/codes |
Get a paginated list of all NAICS codes. - **skip**: Number of records to skip (for pagination) - **limit**: Maximum number of records to return (1-500) |
| GET |
get_code_api_v1_codes__code__get /api/v1/codes/{code} |
Get details for a specific NAICS code. - **code**: The NAICS code (2-6 digits) |
| GET |
list_sectors_api_v1_sectors_get /api/v1/sectors |
Get all 20 NAICS sectors (2-digit codes). |
| GET |
root__get / |
Health check endpoint. |
| GET |
health_health_get /health |
Detailed health check. |