Castor

Castor (Castor EDC / CDMS) is a cloud electronic data capture (EDC) and clinical data management platform for clinical trials and real-world research. Its RESTful API at https://data.castoredc.com/api exposes study configuration and collected data - studies, participants (records), institutes (sites), users, fields and field metadata, study data points, repeating data (reports), surveys and survey packages, audit trail, and batch data export - authenticated with OAuth2 client-credentials. The API is used to integrate Castor with external systems, automate data entry and extraction, and support statistical analysis via the official R and Python wrapper packages.

10 APIs 0 Features
Clinical TrialsElectronic Data CaptureEDCClinical Data ManagementHealthcareLife SciencesResearch

APIs

Castor Studies API

List the studies your API client can access and retrieve a single study's configuration and metadata. A study is the top-level container in Castor; its GUID (the study_id) is re...

Castor Participants (Records) API

Create, list, and retrieve participants (records / subjects) enrolled in a study, including their institute assignment, randomization status, progress, and lifecycle. Participan...

Castor Institutes API

List and retrieve the institutes (sites / centers) participating in a study, and create new institutes. Institutes group participants for multi-center trials and drive site-leve...

Castor Users API

List the users the authenticated account can see, retrieve a single user, and list the users who are members of a given study. Used to reconcile study membership and site staff ...

Castor Fields API

Retrieve the data-capture fields that define a study's forms, plus their supporting metadata - field dependencies (conditional logic), option groups (answer choices), and field ...

Castor Study Data Points API

Read and write the actual collected values (data points) for the study forms of a participant - retrieve all study data points for a study or a single participant, and create or...

Castor Reports (Repeating Data) API

Work with reports (now called repeating data) - unscheduled or repeatable forms such as adverse events or medications. List report definitions, list and create repeating-data in...

Castor Surveys API

Manage surveys and electronic patient-reported outcomes (ePRO) - list survey definitions, send survey packages to participants (creating survey-package instances), check survey ...

Castor Audit Trail API

Retrieve the immutable audit trail for a study - the who, what, and when of every data and configuration change - to support GCP/21 CFR Part 11 compliance, monitoring, and recon...

Castor Data Export API

Request and download bulk exports of a study - the collected data, the study structure, and the option groups - for downstream statistical analysis, archiving, and data warehous...

Collections

Castor EDC / CDMS API

OPEN

Pricing Plans

Castoredc Plans Pricing

3 plans

PLANS

Rate Limits

Castoredc Rate Limits

3 limits

RATE LIMITS

FinOps

Castoredc Finops

FINOPS

Resources

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VulnerabilityDisclosure
VulnerabilityDisclosure
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DomainSecurity
DomainSecurity
🔑
Authentication
Authentication
🔑
OAuthScopes
OAuthScopes
🔗
LinkedIn
LinkedIn
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Website
Website
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Documentation
Documentation
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Plans
Plans
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RateLimits
RateLimits
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FinOps
FinOps
📰
Blog
Blog

Sources

Raw ↑ 
opencollection: 1.0.0
info:
  name: Castor EDC / CDMS API
  version: '1.0'
request:
  auth:
    type: bearer
    token: '{{accessToken}}'
items:
- info:
    name: Authentication
    type: folder
  items:
  - info:
      name: Get access token.
      type: http
    http:
      method: POST
      url: https://data.castoredc.com/api/oauth/token
      auth:
        type: none
      body:
        type: urlencoded
        data: client_id={{clientId}}&client_secret={{clientSecret}}&grant_type=client_credentials
    docs: Exchanges an API Client ID and Client Secret for a Bearer access token (valid 5 hours).
- info:
    name: Studies
    type: folder
  items:
  - info:
      name: List studies.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study
    docs: Lists all studies the API client can access.
  - info:
      name: Retrieve a study.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
    docs: Retrieves a single study by GUID.
- info:
    name: Participants
    type: folder
  items:
  - info:
      name: List participants.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/participant
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
    docs: Lists the participants (records) enrolled in a study.
  - info:
      name: Create a participant.
      type: http
    http:
      method: POST
      url: https://data.castoredc.com/api/study/:study_id/participant
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
      body:
        type: json
        data: "{\n  \"institute_id\": \"\"\n}"
    docs: Creates a new participant (record) in a study.
  - info:
      name: Retrieve a participant.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/participant/:participant_id
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
      - name: participant_id
        value: ''
        type: path
        description: The participant ID.
    docs: Retrieves a single participant by ID.
- info:
    name: Institutes
    type: folder
  items:
  - info:
      name: List institutes.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/institute
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
    docs: Lists the institutes (sites) participating in a study.
  - info:
      name: Retrieve an institute.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/institute/:institute_id
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
      - name: institute_id
        value: ''
        type: path
        description: The institute GUID.
    docs: Retrieves a single institute by ID.
- info:
    name: Users
    type: folder
  items:
  - info:
      name: List users.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/user
    docs: Lists the users the authenticated account can access.
  - info:
      name: Retrieve a user.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/user/:user_id
      params:
      - name: user_id
        value: ''
        type: path
        description: The user GUID.
    docs: Retrieves a single user by ID.
  - info:
      name: List study users.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/user
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
    docs: Lists the users who are members of a study.
- info:
    name: Fields
    type: folder
  items:
  - info:
      name: List fields.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/field
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
    docs: Lists all data-capture fields defined in a study.
  - info:
      name: Retrieve a field.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/field/:field_id
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
      - name: field_id
        value: ''
        type: path
        description: The field GUID.
    docs: Retrieves a single field by ID.
  - info:
      name: List field dependencies.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/field-dependency
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
    docs: Lists conditional-logic dependencies between fields.
  - info:
      name: List field option groups.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/field-optiongroup
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
    docs: Lists the option groups (answer choices) used by fields.
- info:
    name: Study Data Points
    type: folder
  items:
  - info:
      name: List all study data points.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/data-points/study
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
    docs: Retrieves all study-form data points collected across a study.
  - info:
      name: List a participant's study data points.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/participant/:participant_id/data-points/study
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
      - name: participant_id
        value: ''
        type: path
        description: The participant ID.
    docs: Retrieves the study-form data points for a single participant.
  - info:
      name: Update a participant's study data points.
      type: http
    http:
      method: POST
      url: https://data.castoredc.com/api/study/:study_id/participant/:participant_id/data-points/study
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
      - name: participant_id
        value: ''
        type: path
        description: The participant ID.
      body:
        type: json
        data: "{\n  \"data\": [\n    { \"field_id\": \"\", \"field_value\": \"\" }\n  ]\n}"
    docs: Creates or updates study-form data points for a participant.
- info:
    name: Reports (Repeating Data)
    type: folder
  items:
  - info:
      name: List reports.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/report
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
    docs: Lists the report / repeating-data definitions in a study.
  - info:
      name: List a participant's repeating-data instances.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/participant/:participant_id/data-points/repeating-data-instance
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
      - name: participant_id
        value: ''
        type: path
        description: The participant ID.
    docs: Retrieves the repeating-data (report) instances for a participant.
- info:
    name: Surveys
    type: folder
  items:
  - info:
      name: List surveys.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/survey
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
    docs: Lists the survey / ePRO definitions in a study.
  - info:
      name: Send a survey package to a participant.
      type: http
    http:
      method: POST
      url: https://data.castoredc.com/api/study/:study_id/participant/:participant_id/data-points/survey-package-instance
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
      - name: participant_id
        value: ''
        type: path
        description: The participant ID.
      body:
        type: json
        data: "{\n  \"survey_package_id\": \"\",\n  \"email_address\": \"\"\n}"
    docs: Creates a survey-package instance, sending surveys to a participant.
- info:
    name: Audit Trail
    type: folder
  items:
  - info:
      name: Retrieve the audit trail.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/audit-trail
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
    docs: Retrieves the immutable audit trail entries for a study.
- info:
    name: Data Export
    type: folder
  items:
  - info:
      name: Export study data.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/export/data
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
    docs: Exports the collected data of a study (CSV).
  - info:
      name: Export study structure.
      type: http
    http:
      method: GET
      url: https://data.castoredc.com/api/study/:study_id/export/structure
      params:
      - name: study_id
        value: ''
        type: path
        description: The study GUID.
    docs: Exports the structure (forms, fields, phases) of a study.
bundled: true