generated: '2026-07-11' method: derived source: openapi/usgs-water-data-api-openapi.yaml summary: types: - apiKey api_key_in: - header - query schemes: - name: ApiKeyQuery type: apiKey in: query parameter: api_key description: USGS Water Data API key. Obtain at https://api.waterdata.usgs.gov/signup/ sources: - openapi/usgs-water-data-api-openapi.yaml - name: ApiKeyHeader type: apiKey in: header parameter: api_key description: USGS Water Data API key passed as a request header. sources: - openapi/usgs-water-data-api-openapi.yaml