USGS Water Services · Authentication Profile

Usgs Water Authentication

Authentication

USGS Water Services secures its APIs with apiKey across 2 declared security schemes, as derived from its OpenAPI definitions.

WaterStreamflowGroundwaterWater QualityHydrologyEnvironmentalUSGSNWISGovernmentOpen DataOGC
Methods: apiKey Schemes: 2 OAuth flows: API key in: header, query

Security Schemes

ApiKeyHeader apiKey
· in: header (api_key)
ApiKeyQuery apiKey
· in: query (api_key)

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-11'
method: derived
source: openapi/usgs-water-openapi.json
summary:
  types:
  - apiKey
  api_key_in:
  - header
  - query
schemes:
- name: ApiKeyHeader
  type: apiKey
  in: header
  parameter: api_key
  description: Providing your API key gives you higher rate limits when querying our APIs. You
    can obtain an API key at https://api.waterdata.usgs.gov/signup
  sources:
  - openapi/usgs-water-openapi.json
- name: ApiKeyQuery
  type: apiKey
  in: query
  parameter: api_key
  description: Providing your API key gives you higher rate limits when querying our APIs. You
    can obtain an API key at https://api.waterdata.usgs.gov/signup
  sources:
  - openapi/usgs-water-openapi.json