University of Chicago Gen3 indexd — global API

openapi: 3.0.0
info:
  title: Gen3 indexd OpenAPI Specification — global API
  version: 0.1.0
  description: >-
    indexd is the Gen3 data indexing and GUID service, authored by the University of Chicago Center for Translational Data Science.
    Code: https://github.com/uc-cdis/indexd
  termsOfService: http://cdis.uchicago.edu/terms/
  contact:
    email: cdis@uchicago.edu
  license:
    name: Apache 2.0
    url: http://www.apache.org/licenses/LICENSE-2.0.html
servers:
- url: https://gen3.datacommons.io/
  description: >-
    University of Chicago Center for Translational Data Science (CTDS) reference Gen3 data
    commons. Gen3 is deployable software authored by CTDS (github.com/uc-cdis), so the upstream
    specification ships a placeholder host; this is the base URL of the deployment CTDS itself
    operates. The datacommons.io domain is registered to CDIS, University of Chicago.
  x-operator: institution
  x-verified: '2026-08-19'
  x-verified-evidence: https://gen3.datacommons.io/.well-known/openid-configuration
tags:
- name: global
  description: Search for an alias or index, potentially even a distributed search.
  externalDocs:
    description: Find out more
    url: https://github.com/uc-cdis/indexd
paths:
  /{GUID}:
    get:
      tags:
      - global
      summary: Get the metadata associated with the given id, alias, or distributed identifier
      description: Only the hashes which exist will be included in the response.
      operationId: getEntry
      parameters:
      - name: GUID
        in: path
        description: entry id
        required: true
        schema:
          type: string
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/OutputInfo'
        '400':
          description: Invalid status value
        '404':
          description: Record not found
      security: []
  /urls:
    get:
      tags:
      - global
      summary: Get a list of urls that match query params
      description: ''
      operationId: listUrls
      parameters:
      - name: size
        in: query
        description: object size
        required: false
        schema:
          type: integer
      - name: hash
        in: query
        description: hashes specified as algorithm:value. Multiple hashes can be specified, for example "?hash=a:xxx&hash=b:yyy"
        schema:
          type: string
      - name: ids
        in: query
        description: comma delimited ids
        schema:
          type: string
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UrlOutputRef'
        '400':
          description: Invalid input
      security:
      - basic_auth: []
components:
  schemas:
    HashInfo:
      type: object
      properties:
        md5:
          type: string
          pattern: ^[0-9a-f]{32}$
        sha:
          type: string
          pattern: ^[0-9a-f]{40}$
        sha256:
          type: string
          pattern: ^[0-9a-f]{64}$
        sha512:
          type: string
          pattern: ^[0-9a-f]{128}$
        crc:
          type: string
          pattern: ^[0-9a-f]{8}$
        etag:
          type: string
          pattern: ^[0-9a-f]{32}(-\d+)?$
    UrlOutputRef:
      type: object
      properties:
        urls:
          type: array
          items:
            $ref: '#/components/schemas/UrlObject'
        size:
          type: integer
          format: int64
          description: size in bytes
        start:
          type: integer
          format: int64
          description: start index for the pagination
        limit:
          type: integer
          format: int64
          description: number of aliases to return
        hashes:
          $ref: '#/components/schemas/HashInfo'
    DID:
      type: string
      pattern: ^.*[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$
    UrlObject:
      type: object
      properties:
        url:
          type: string
        metadata:
          type: object
    UUID:
      type: string
      pattern: ^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$
    OutputInfo:
      type: object
      properties:
        did:
          $ref: '#/components/schemas/DID'
        baseid:
          $ref: '#/components/schemas/UUID'
        rev:
          type: string
          pattern: ^[0-9a-f]{8}$
        form:
          type: string
          description: how the entry was submitted to storage
          enum:
          - object
          - container
          - multipart
        size:
          type: integer
          format: int64
          description: size in bytes
        file_name:
          type: string
        version:
          type: string
        uploader:
          type: string
        urls:
          type: array
          items:
            type: string
        acl:
          type: array
          items:
            type: string
        authz:
          type: array
          items:
            type: string
        hashes:
          $ref: '#/components/schemas/HashInfo'
        updated_date:
          type: string
          format: date-time
          description: last updated time
        created_date:
          type: string
          format: date-time
          description: time created
        metadata:
          type: object
          description: user defined optional metadata
        urls_metadata:
          type: object
          description: url level optional metadata
  securitySchemes:
    OAuth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: /oauth/authorize
          tokenUrl: /oauth/token
          scopes:
            user: generic user access