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FRED Categories API

Category hierarchy navigation — children, related, series, and tags within a category.

FRED Categories API is one of 10 APIs that FRED publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Categories. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and authentication docs.

This API exposes 6 operations across 6 paths, and defines 7 schemas. It is described by OpenAPI 3.0.3, at version 1.0.

Requests are made against a single base URL, https://api.stlouisfed.org/geofred.

6 operations 6 paths 7 schemas 6 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
1.0
Base URL
https://api.stlouisfed.org/fred
Authentication
API Key
Terms of Service
Resource Areas
1

Authentication & Security 1

FRED Categories API declares 1 security scheme for authenticating requests. An API key is passed in the query as api_key (ApiKeyAuth). By default, every request must be authenticated.

  • ApiKeyAuth — 32-character lower-case alphanumeric FRED API key (same key used for the FRED API).

Paths & Operations 6

Across 6 paths, the API surfaces 6 operations — 6 GET. Each is listed below with its method, path, parameters, and response codes.

Categories 6

Category hierarchy navigation — children, related, series, and tags within a category.

GET
/category
FRED Get a Category
getCategory 3 params → 200400403
GET
/category/children
FRED Get the Child Categories for a Category
getCategoryChildren 5 params → 200400403
GET
/category/related
FRED Get the Related Categories for a Category
getCategoryRelated 5 params → 200
GET
/category/series
FRED Get the Series in a Category
getCategorySeries 13 params → 200
GET
/category/tags
FRED Get the Tags for a Category
getCategoryTags 12 params → 200
GET
/category/related_tags
FRED Get the Related Tags for a Category
getCategoryRelatedTags 13 params → 200

Schemas 7

The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are Series (16 properties), SeriesList (8 properties), TagList (8 properties), Tag (6 properties). Each schema is shown below with its type and property counts.

Tag
object
A FRED tag.
6 properties 2 required
CategoryList
object
A list of FRED categories.
1 property 1 required
TagList
object
A list of FRED tags.
8 properties 1 required
SeriesList
object
A list of FRED series.
8 properties 1 required
Category
object
A FRED category node.
4 properties 3 required
ErrorResponse
object
FRED error response.
2 properties 2 required
Series
object
A FRED economic data series and its metadata.
16 properties 2 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

fred-categories-api-openapi.yml Raw ↑

Other APIs FRED publishes across the network.

FRED Observations API
FRED Regional Data API
FRED Releases API
FRED Series API
FRED Series Data API
FRED Series Group API
FRED Shapes API
FRED Sources API
FRED Tags API
Where this information came from

This is an independent, third-party profile of FRED Categories API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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