U.S. Geological Survey Combined Metadata API
This endpoint combines metadata from timeseries and field measurements collections by site.
U.S. Geological Survey Combined Metadata API is one of 47 APIs that U.S. Geological Survey publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
This API exposes 3 JSON Schema definitions.
Tagged areas include combined-metadata. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a getting-started guide, a JSON-LD context, authentication docs, and 3 JSON Schemas.
This API exposes 8 operations across 5 paths, and defines 5 schemas. It is described by OpenAPI 3.2.0, at version 0.71.7.
Requests are made against a single base URL, https://api.waterdata.usgs.gov/ogcapi/v0.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 2
U.S. Geological Survey Combined Metadata API declares
2 security schemes
for authenticating requests.
An API key is passed in the header as api_key (ApiKeyHeader).
An API key is passed in the query as api_key (ApiKeyQuery).
ApiKeyHeader— 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/signupApiKeyQuery— 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
Paths & Operations 8
Across 5 paths, the API surfaces 8 operations — 5 GET, 2 OPTIONS, 1 POST. Each is listed below with its method, path, parameters, and response codes.
This endpoint combines metadata from timeseries and field measurements collections by site.
Schemas 5
The contract defines 5 schemas that model the data the API accepts and returns. The most detailed are CombinedMetadataFeatureCollection (6 properties), queryable (6 properties), CombinedMetadataFeature (4 properties), Error (1 property). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
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Other APIs U.S. Geological Survey publishes across the network.
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