/.well-known/api-catalog
type: TechArticle
description: RFC 9727 publishes a machine-readable index of the APIs and resources a host exposes. Served as a Linkset (RFC 9264) JSON document, discoverable via the api-catalog link relation.
language: en
is part of: Web Specification Studio
author: Web Specification Studio
publisher: Web Specification Studio
license: https://creativecommons.org/licenses/by/4.0/
date modified: 2026-07-09T00:00:00.000Z
citation: RFC 9727 — Publishing Organisation API Information
  type: CreativeWork
  publisher: IETF
citation: RFC 9264 — Linkset: Media Types and a Link Relation Type for Link Sets
  type: CreativeWork
  publisher: IETF
citation: RFC 8288 — Web Linking
  type: CreativeWork
  publisher: IETF
citation: IANA — Well-Known URIs Registry
  type: CreativeWork
  publisher: IANA

Web Specification Studio
type: WebSite

Web Specification Studio
type: Organization

breadcrumb
type: BreadcrumbList
item list element: Home
  type: ListItem
  position: 1
  item: https://webspecification.com/
item list element: Spec
  type: ListItem
  position: 2
  item: https://webspecification.com/spec/
item list element: Well-Known URIs
  type: ListItem
  position: 3
  item: https://webspecification.com/spec/well-known/
item list element: /.well-known/api-catalog
  type: ListItem
  position: 4
  item: https://webspecification.com/spec/well-known/api-catalog/