openapi: 3.1.0
info:
  title: NuGet Catalog Autocomplete Service Index API
  description: The NuGet Catalog API is an append-only resource that records the full history of all package events on nuget.org, including packages being added, modified, listed, unlisted, deleted, deprecated, and having vulnerability status updated. It provides a chronologically ordered log of every change to the package source, enabling consumers to build and maintain their own local copy of the entire set of packages available on nuget.org. The catalog is indexed by time and uses a hierarchical structure of index, pages, and leaves. Not all package sources implement the catalog resource.
  version: 3.0.0
  contact:
    name: NuGet Support
    url: https://github.com/NuGet/Home/issues
  termsOfService: https://www.nuget.org/policies/Terms
servers:
- url: https://api.nuget.org/v3/catalog0
  description: NuGet.org Catalog
security: []
tags:
- name: Service Index
  description: The service index is the entry point for the NuGet V3 API. It is a JSON document that lists all available resources and their capabilities.
paths:
  /index.json:
    get:
      operationId: getServiceIndex
      summary: Get the service index
      description: Retrieves the service index, which is a JSON document listing all available resources on the NuGet package source. Clients use this document to discover the URLs for search, registration, package content, catalog, and other API resources.
      tags:
      - Service Index
      responses:
        '200':
          description: The service index document
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ServiceIndex'
components:
  schemas:
    ServiceIndex:
      type: object
      description: The service index document that lists all available NuGet API resources.
      required:
      - version
      - resources
      properties:
        version:
          type: string
          description: The schema version of the service index. The major version must be 3.
          example: 3.0.0
        resources:
          type: array
          description: The list of resources available on this package source.
          items:
            $ref: '#/components/schemas/ServiceIndexResource'
    ServiceIndexResource:
      type: object
      description: A resource available on the NuGet package source.
      required:
      - '@id'
      - '@type'
      properties:
        '@id':
          type: string
          format: uri
          description: The URL to the resource.
        '@type':
          type: string
          description: A string representing the resource type, such as SearchQueryService, RegistrationsBaseUrl, PackageBaseAddress, PackagePublish, or Catalog.
        comment:
          type: string
          description: A human-readable description of the resource.
externalDocs:
  description: NuGet Catalog API Documentation
  url: https://learn.microsoft.com/en-us/nuget/api/catalog-resource