University of Chicago

University of Chicago Gen3 indexd — query API

query endpoints

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OpenAPI Specification

openapi: 3.0.0
info:
  title: Gen3 indexd OpenAPI Specification — query 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: query
  description: query endpoints
paths:
  /_query/urls/q:
    get:
      tags:
      - query
      summary: search index records by urls
      operationId: queryUrls
      parameters:
      - in: query
        name: exclude
        description: search for documents without a single URL that match this pattern
        required: false
        schema:
          type: string
      - in: query
        name: include
        description: search for documents with at least one URL that match this pattern
        required: false
        schema:
          type: string
      - in: query
        name: versioned
        description: if true search for documents with a version set, else search documents without version
        required: false
        schema:
          type: boolean
          default: false
      - in: query
        name: limit
        description: maximum rows to return
        required: false
        schema:
          type: integer
          default: 100
      - in: query
        name: offset
        description: pointer position to start search
        required: false
        schema:
          type: integer
          default: 0
      responses:
        '200':
          description: successful
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/URLsOutput'
        '400':
          description: invalid request parameters
  /_query/urls/metadata/q:
    get:
      tags:
      - query
      summary: search index records by urls metadata key and value
      operationId: queryUrlsMetadata
      parameters:
      - in: query
        name: key
        description: metadata key to search by
        required: true
        schema:
          type: string
      - in: query
        name: value
        description: metadata value for provided key
        required: true
        schema:
          type: string
      - in: query
        name: url
        description: URL patter to filter by
        required: false
        schema:
          type: string
      - in: query
        name: versioned
        description: if true search for documents with a version set, else search documents without version
        required: false
        schema:
          type: boolean
          default: false
      - in: query
        name: limit
        description: maximum rows to return
        required: false
        schema:
          type: integer
          default: 100
      - in: query
        name: offset
        description: pointer position to start search
        required: false
        schema:
          type: integer
          default: 0
      responses:
        '200':
          description: successful
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/URLsOutput'
        '400':
          description: invalid request parameters
components:
  schemas:
    URLsOutput:
      type: array
      items:
        type: object
        properties:
          did:
            type: string
          urls:
            type: array
            items:
              type: string
  securitySchemes:
    OAuth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: /oauth/authorize
          tokenUrl: /oauth/token
          scopes:
            user: generic user access