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USGS Water Services parameter-codes API

Parameter codes are 5-digit codes and associated descriptions used to identify the constituent measured and the units of measure. Some parameter code definitions include information about the sampling matrix, fraction, and methods used to measure the constituent. Some parameters are fixed-value (fxd) numeric codes having textual meaning (for example: parameter code 00041 is a weather code parameter, code of 60 means rain), but more commonly represent a numeric value for chemical, physical, or biological data.

USGS Water Services parameter-codes API is one of 43 APIs that USGS Water Services publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include parameter-codes. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 8 operations across 5 paths, and defines 3 schemas. It is described by OpenAPI 3.0.2, at version 0.56.0.

Requests are made against a single base URL, https://api.waterdata.usgs.gov/ogcapi/v0.

8 operations 5 paths 3 schemas 5 GET2 OPTIONS1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.2
API Version
0.56.0
Base URL
https://waterservices.usgs.gov/nwis/iv/
Authentication
API Key, API Key
Terms of Service
Resource Areas
1

Authentication & Security 2

USGS Water Services parameter-codes 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/signup
  • ApiKeyQuery — 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.

parameter-codes 8

Parameter codes are 5-digit codes and associated descriptions used to identify the constituent measured and the units of measure. Some parameter code definitions include informati…

GET
/collections/parameter-codes
Get Parameter codes metadata
describeParameter-codesCollection 2 params → 200400403404429500
GET
/collections/parameter-codes/items
Get Parameter codes items
getParameter-codesFeatures 24 params → 200400403404429500
OPTIONS
/collections/parameter-codes/items
Options for Parameter codes items
optionsParameter-codesFeatures → 200
POST
/collections/parameter-codes/items
Get Parameter codes items with CQL2
getCQL2Parameter-codesFeatures body → 200400403429500
GET
/collections/parameter-codes/items/{featureId}
Get Parameter codes item by id
getParameter-codesFeature 4 params → 200400403404429500
OPTIONS
/collections/parameter-codes/items/{featureId}
Options for Parameter codes item by id
optionsParameter-codesFeature 1 param → 200
GET
/collections/parameter-codes/queryables
Get Parameter codes queryables
getParameter-codesQueryables 4 params → 200400403404429500
GET
/collections/parameter-codes/schema
Get Parameter codes schema
getParameter-codesSchema 2 params → 200400403404429500

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are queryable (6 properties), queryables (1 property), Error (1 property). Each schema is shown below with its type and property counts.

Error
object
1 property
queryable
object
6 properties 2 required
queryables
object
1 property 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

usgs-water-parameter-codes-api-openapi.yml Raw ↑

Other APIs USGS Water Services publishes across the network.

USGS Instantaneous Values Service
USGS Daily Values Service
USGS Site Service
USGS Statistics Service
USGS Groundwater Levels Service
Water Quality Portal (WQP) API
USGS Water Data Statistics API
USGS Water Services agency-codes API
USGS Water Services altitude-datums API
USGS Water Services aquifer-codes API
USGS Water Services aquifer-types API
USGS Water Services channel-measurements API
Where this information came from

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