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NOAA ERDDAP Discovery API

Search and browse available datasets.

NOAA ERDDAP Discovery API is one of 4 APIs that NOAA ERDDAP publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Discovery. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and rate-limit docs.

This API exposes 5 operations across 5 paths, and defines 2 schemas. It is described by OpenAPI 3.1.0, at version 2.23.

Requests are made against 3 base URLs: https://coastwatch.pfeg.noaa.gov/erddap, https://erddap.ioos.us/erddap, {baseUrl}.

5 operations 5 paths 2 schemas 5 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
2.23
Base URL
https://coastwatch.pfeg.noaa.gov/erddap
License
Resource Areas
1

Paths & Operations 5

Across 5 paths, the API surfaces 5 operations — 5 GET. Each is listed below with its method, path, parameters, and response codes.

Discovery 5

Search and browse available datasets.

GET
/search/index.{fileType}
Full-text search across all datasets
searchDatasets 4 params → 200
GET
/search/advanced.{fileType}
Advanced search with metadata and spatial/temporal filters
searchDatasetsAdvanced 18 params → 200
GET
/info/index.{fileType}
List all datasets available on this server
listAllDatasets 2 params → 200
GET
/categorize/{attribute}/index.{fileType}
List all distinct values for a metadata attribute
listAttributeValues 2 params → 200
GET
/categorize/{attribute}/{value}/index.{fileType}
List datasets that match a specific metadata attribute value
listDatasetsByAttribute 3 params → 200

Schemas 2

The contract defines 2 schemas that model the data the API accepts and returns. The most detailed is DatasetList (1 property). Each schema is shown below with its type and property counts.

DatasetList
object
ERDDAP wraps all JSON responses in a table envelope with parallel columnNames, columnTypes, and rows arrays.
1 property
MetadataFileType
string
Response format for discovery and metadata endpoints.

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

noaa-erddap-discovery-api-openapi.yml Raw ↑

Other APIs NOAA ERDDAP publishes across the network.

NOAA ERDDAP Data Access API
NOAA ERDDAP Files API
NOAA ERDDAP Metadata API