Castor

Castor Studies API

Studies accessible to the API client.

Documentation GitHub OpenAPI

Business capability

Clinical Trials Management BC-1520

Operations 3

POST /oauth/token Obtain an OAuth2 access token #

GET /study List studies #

GET /study/{study_id} Retrieve a study #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Castor EDC / CDMS Studies API
  description: The Castor EDC / CDMS API is a RESTful interface to Castor's cloud electronic data capture (EDC) and clinical data management platform.
  version: '1.0'
  contact:
    name: Castor
    url: https://www.castoredc.com
  license:
    name: Proprietary
    url: https://www.castoredc.com/legal/
servers:
- url: https://data.castoredc.com/api
  description: Castor EU (default)
- url: https://us.castoredc.com/api
  description: Castor US region
security:
- oauth2ClientCredentials: []
tags:
- name: Studies
  description: Studies accessible to the API client.
paths:
  /oauth/token:
    post:
      operationId: getAccessToken
      tags:
      - Studies
      summary: Obtain an OAuth2 access token
      description: Exchange an API Client ID and Client Secret for a Bearer access token using the client_credentials grant. The returned token is valid for 5 hours.
      security: []
      x-endpoint-status: confirmed
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              required:
              - client_id
              - client_secret
              - grant_type
              properties:
                client_id:
                  type: string
                client_secret:
                  type: string
                grant_type:
                  type: string
                  enum:
                  - client_credentials
      responses:
        '200':
          description: An access token.
          content:
            application/json:
              schema:
                type: object
                properties:
                  access_token:
                    type: string
                  token_type:
                    type: string
                    example: Bearer
                  expires_in:
                    type: integer
                    example: 18000
        '401':
          $ref: '#/components/responses/Unauthorized'
  /study:
    get:
      operationId: listStudies
      tags:
      - Studies
      summary: List studies
      description: Lists all studies the authenticated API client has access to.
      x-endpoint-status: confirmed
      parameters:
      - $ref: '#/components/parameters/Page'
      responses:
        '200':
          description: A paginated list of studies.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StudyCollection'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /study/{study_id}:
    get:
      operationId: getStudy
      tags:
      - Studies
      summary: Retrieve a study
      description: Retrieves a single study by its GUID.
      x-endpoint-status: confirmed
      parameters:
      - $ref: '#/components/parameters/StudyId'
      responses:
        '200':
          description: A study.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Study'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  schemas:
    Study:
      type: object
      properties:
        study_id:
          type: string
          format: uuid
        name:
          type: string
        created_by:
          type: string
        live:
          type: boolean
        randomization_enabled:
          type: boolean
        surveys_enabled:
          type: boolean
        created_on:
          type: string
          format: date-time
    StudyCollection:
      type: object
      properties:
        _embedded:
          type: object
          properties:
            study:
              type: array
              items:
                $ref: '#/components/schemas/Study'
        page_count:
          type: integer
        total_items:
          type: integer
  responses:
    NotFound:
      description: The requested resource was not found.
    Unauthorized:
      description: Missing or invalid access token.
  parameters:
    StudyId:
      name: study_id
      in: path
      required: true
      description: The study GUID (uppercase, 8-4-4-4-12 format).
      schema:
        type: string
    Page:
      name: page
      in: query
      required: false
      description: Page number for paginated (HAL) collections.
      schema:
        type: integer
        minimum: 1
  securitySchemes:
    oauth2ClientCredentials:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://data.castoredc.com/api/oauth/token
          scopes: {}