generated: '2026-07-11' method: derived source: openapi/bls-public-data-api-openapi.yaml summary: types: - apiKey api_key_in: - query schemes: - name: ApiKeyQuery type: apiKey in: query parameter: registrationkey description: Free BLS API registration key. Register at https://data.bls.gov/registrationEngine/ to obtain a key for Version 2 API features. sources: - openapi/bls-public-data-api-openapi.yaml