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.

Castor publishes 45 API contracts indexed on the APIs.io network, including Metadata API, Beta API, Castor Internal API, and 42 more. Tagged areas include Clinical Trials, Electronic Data Capture, EDC, Clinical Data Management, and Healthcare.

The Castor catalog on APIs.io includes 1 Spectral governance ruleset.

Castor’s developer surface includes authentication, documentation, engineering blog, and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

31.0/100 thin ▬ flat Agent 28/100 agent aware Front door AI 5/6 prominent Heartbeat 80/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaidSelf serve

1 published contract

Clinical Trials Electronic Data Capture EDC Clinical Data Management Healthcare Life Sciences Research Health Data Management Artificial Intelligence

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Clinical Trials Management

BC-1520

Data ExportFieldsInstitutesParticipantsReportsStudies

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 31.0/100 · thin

Contract Quality 9.6 / 19

Developer Ergonomics 3.2 / 15

Access Clarity 1.2 / 15

Operational Transparency 2.1 / 10

Contract Governance 1.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 3.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 28/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 0 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Health regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 7.9 — up to +18.4 composite points
Developer Ergonomics scores 21.4 — up to +15.7 composite points
Contract Quality scores 51.3 — up to +12.2 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/castoredc/apis.yml: open an issue on github.com/api-evangelist/castoredc to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 45

Individual APIs this provider publishes, each with its own machine-readable definition.

Castor Metadata API

Reference metadata such as countries.

Castor Beta API

The beta API from Castor — 6 operation(s) for beta.

Castor Castor Internal API

The castor-internal API from Castor — 1 operation(s) for castor-internal.

Castor Country API

The country API from Castor — 2 operation(s) for country.

Castor Data Point Collection API

The data-point-collection API from Castor — 13 operation(s) for data-point-collection.

Castor Data Points API

The data-points API from Castor — 13 operation(s) for data-points.

Castor Export API

The export API from Castor — 5 operation(s) for export.

Castor Field API

The field API from Castor — 2 operation(s) for field.

Castor Field Dependency API

The field-dependency API from Castor — 2 operation(s) for field-dependency.

Castor Field Optiongroup API

The field-optiongroup API from Castor — 3 operation(s) for field-optiongroup.

Castor Field Validation API

The field-validation API from Castor — 2 operation(s) for field-validation.

Castor Form API

The form API from Castor — 2 operation(s) for form.

Castor Institute API

The institute API from Castor — 2 operation(s) for institute.

Castor Metadatatype API

The metadatatype API from Castor — 2 operation(s) for metadatatype.

Castor Participant API

The participant API from Castor — 2 operation(s) for participant.

Castor Participant Device Token API

The participant-device-token API from Castor — 1 operation(s) for participant-device-token.

Castor Participant Econsent API

The participant-econsent API from Castor — 1 operation(s) for participant-econsent.

Castor Participant Progress API

The participant-progress API from Castor — 3 operation(s) for participant-progress.

Castor Phase API

The phase API from Castor — 2 operation(s) for phase.

Castor Query API

The query API from Castor — 2 operation(s) for query.

Castor Randomization API

The randomization API from Castor — 2 operation(s) for randomization.

Castor Record API

The record API from Castor — 2 operation(s) for record.

Castor Record Progress API

The record-progress API from Castor — 1 operation(s) for record-progress.

Castor Repeating Data API

The repeating-data API from Castor — 2 operation(s) for repeating-data.

Castor Repeating Data Data Entry API

The repeating-data-data-entry API from Castor — 2 operation(s) for repeating-data-data-entry.

Castor Repeating Data Form API

The repeating-data-form API from Castor — 2 operation(s) for repeating-data-form.

Castor Repeating Data Instance API

The repeating-data-instance API from Castor — 5 operation(s) for repeating-data-instance.

Castor Report API

The report API from Castor — 2 operation(s) for report.

Castor Report Data Entry API

The report-data-entry API from Castor — 2 operation(s) for report-data-entry.

Castor Report Instance API

The report-instance API from Castor — 5 operation(s) for report-instance.

Castor Report Step API

The report-step API from Castor — 2 operation(s) for report-step.

Castor Role API

The role API from Castor — 2 operation(s) for role.

Castor Site API

The site API from Castor — 2 operation(s) for site.

Castor Step API

The step API from Castor — 2 operation(s) for step.

Castor Study API

The study API from Castor — 3 operation(s) for study.

Castor Study Data Entry API

The study-data-entry API from Castor — 4 operation(s) for study-data-entry.

Castor Study Statistics API

The study-statistics API from Castor — 1 operation(s) for study-statistics.

Castor Study User API

The study-user API from Castor — 2 operation(s) for study-user.

Castor Survey API

The survey API from Castor — 14 operation(s) for survey.

Castor Survey Data Entry API

The survey-data-entry API from Castor — 4 operation(s) for survey-data-entry.

Castor Survey Form API

The survey-form API from Castor — 2 operation(s) for survey-form.

Castor Survey Step API

The survey-step API from Castor — 2 operation(s) for survey-step.

Castor User API

The user API from Castor — 2 operation(s) for user.

Castor Verification API

The verification API from Castor — 1 operation(s) for verification.

Castor Visit API

The visit API from Castor — 2 operation(s) for visit.

Scroll for all 45

Open Collections 12

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Castor EDC / CDMS Audit Trail API

OPEN COLLECTION

Castor EDC / CDMS Audit Trail Data Export API

OPEN COLLECTION

Castor EDC / CDMS Audit Trail Fields API

OPEN COLLECTION

Castor EDC / CDMS Audit Trail Institutes API

OPEN COLLECTION

Castor EDC / CDMS Audit Trail Metadata API

OPEN COLLECTION

Castor EDC / CDMS Audit Trail Participants API

OPEN COLLECTION

Castor EDC / CDMS Audit Trail Reports API

OPEN COLLECTION

Castor EDC / CDMS Audit Trail Studies API

OPEN COLLECTION

Castor EDC / CDMS Audit Trail Study Data Points API

OPEN COLLECTION

Castor EDC / CDMS Audit Trail Surveys API

OPEN COLLECTION

Castor EDC / CDMS Audit Trail Users API

OPEN COLLECTION

Castor EDC / CDMS API

OPEN COLLECTION

Scroll for all 12

Castor API pricing

Not yet checked against Castor's own pricing page. Compiled by API Evangelist on 2026-07-05 from www.castoredc.com; confirm before you rely on a figure.

Plan	Price
Academic / Non-Profit subscription	—
Standard (Per Study) subscription	—
Enterprise / Sponsor / CRO enterprise	—

Plan details, limits and sources →

Rate limits

Default API Requests: ~600 per 10 minutes requests
Access Token Lifetime: 18000 seconds
Collection Pagination: page-based (HAL) items

Compiled by API Evangelist, not yet checked against Castor's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Castoredc Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Castoredc Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Castor

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Castoredc Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Castor API Rules

62 rules · 44 errors 13 warnings 5 info

SPECTRAL

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Castoredc Authentication

oauth2 · 1 scheme

SECURITY

Castoredc Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Castoredc Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Castoredc Scopes

3 scopes · clientCredentials

3 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Castoredc Agentic Access

34 operations · 6 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 4

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: castoredc
url: https://raw.githubusercontent.com/api-evangelist/castoredc/refs/heads/main/apis.yml
name: Castor
kind: company
description: 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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - scopes
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/castoredc.png
tags:
- Clinical Trials
- Electronic Data Capture
- EDC
- Clinical Data Management
- Healthcare
- Life Sciences
- Research
- Health
- Data Management
- Artificial Intelligence
created: '2026-07-05'
modified: '2026-07-05'
specificationVersion: '0.23'
apis:
- aid: castoredc:castoredc-metadata-api
  name: Castor Metadata API
  description: Reference metadata such as countries.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Metadata
  properties:
  - type: OpenAPI
    url: openapi/castoredc-metadata-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-beta-api
  name: Castor Beta API
  description: The beta API from Castor — 6 operation(s) for beta.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Beta
  tags_raw:
  - beta
  properties:
  - type: OpenAPI
    url: openapi/castoredc-beta-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-castor-internal-api
  name: Castor Castor Internal API
  description: The castor-internal API from Castor — 1 operation(s) for castor-internal.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - castor-internal
  properties:
  - type: OpenAPI
    url: openapi/castoredc-castor-internal-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-country-api
  name: Castor Country API
  description: The country API from Castor — 2 operation(s) for country.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Country
  tags_raw:
  - country
  properties:
  - type: OpenAPI
    url: openapi/castoredc-country-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-data-point-collection-api
  name: Castor Data Point Collection API
  description: The data-point-collection API from Castor — 13 operation(s) for data-point-collection.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - data-point-collection
  properties:
  - type: OpenAPI
    url: openapi/castoredc-data-point-collection-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-data-points-api
  name: Castor Data Points API
  description: The data-points API from Castor — 13 operation(s) for data-points.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Datapoints
  tags_raw:
  - data-points
  properties:
  - type: OpenAPI
    url: openapi/castoredc-data-points-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-export-api
  name: Castor Export API
  description: The export API from Castor — 5 operation(s) for export.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Export
  tags_raw:
  - export
  properties:
  - type: OpenAPI
    url: openapi/castoredc-export-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-field-api
  name: Castor Field API
  description: The field API from Castor — 2 operation(s) for field.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Field
  tags_raw:
  - field
  properties:
  - type: OpenAPI
    url: openapi/castoredc-field-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-field-dependency-api
  name: Castor Field Dependency API
  description: The field-dependency API from Castor — 2 operation(s) for field-dependency.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - field-dependency
  properties:
  - type: OpenAPI
    url: openapi/castoredc-field-dependency-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-field-optiongroup-api
  name: Castor Field Optiongroup API
  description: The field-optiongroup API from Castor — 3 operation(s) for field-optiongroup.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - field-optiongroup
  properties:
  - type: OpenAPI
    url: openapi/castoredc-field-optiongroup-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-field-validation-api
  name: Castor Field Validation API
  description: The field-validation API from Castor — 2 operation(s) for field-validation.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - field-validation
  properties:
  - type: OpenAPI
    url: openapi/castoredc-field-validation-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-form-api
  name: Castor Form API
  description: The form API from Castor — 2 operation(s) for form.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Form
  tags_raw:
  - form
  properties:
  - type: OpenAPI
    url: openapi/castoredc-form-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-institute-api
  name: Castor Institute API
  description: The institute API from Castor — 2 operation(s) for institute.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - institute
  properties:
  - type: OpenAPI
    url: openapi/castoredc-institute-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-metadatatype-api
  name: Castor Metadatatype API
  description: The metadatatype API from Castor — 2 operation(s) for metadatatype.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - metadatatype
  properties:
  - type: OpenAPI
    url: openapi/castoredc-metadatatype-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-participant-api
  name: Castor Participant API
  description: The participant API from Castor — 2 operation(s) for participant.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Participant
  tags_raw:
  - participant
  properties:
  - type: OpenAPI
    url: openapi/castoredc-participant-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-participant-device-token-api
  name: Castor Participant Device Token API
  description: The participant-device-token API from Castor — 1 operation(s) for participant-device-token.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - participant-device-token
  properties:
  - type: OpenAPI
    url: openapi/castoredc-participant-device-token-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-participant-econsent-api
  name: Castor Participant Econsent API
  description: The participant-econsent API from Castor — 1 operation(s) for participant-econsent.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - participant-econsent
  properties:
  - type: OpenAPI
    url: openapi/castoredc-participant-econsent-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-participant-progress-api
  name: Castor Participant Progress API
  description: The participant-progress API from Castor — 3 operation(s) for participant-progress.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - participant-progress
  properties:
  - type: OpenAPI
    url: openapi/castoredc-participant-progress-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-phase-api
  name: Castor Phase API
  description: The phase API from Castor — 2 operation(s) for phase.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Phase
  tags_raw:
  - phase
  properties:
  - type: OpenAPI
    url: openapi/castoredc-phase-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-query-api
  name: Castor Query API
  description: The query API from Castor — 2 operation(s) for query.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Query
  tags_raw:
  - query
  properties:
  - type: OpenAPI
    url: openapi/castoredc-query-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-randomization-api
  name: Castor Randomization API
  description: The randomization API from Castor — 2 operation(s) for randomization.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Randomization
  tags_raw:
  - randomization
  properties:
  - type: OpenAPI
    url: openapi/castoredc-randomization-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-record-api
  name: Castor Record API
  description: The record API from Castor — 2 operation(s) for record.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Record
  tags_raw:
  - record
  properties:
  - type: OpenAPI
    url: openapi/castoredc-record-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-record-progress-api
  name: Castor Record Progress API
  description: The record-progress API from Castor — 1 operation(s) for record-progress.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - record-progress
  properties:
  - type: OpenAPI
    url: openapi/castoredc-record-progress-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-repeating-data-api
  name: Castor Repeating Data API
  description: The repeating-data API from Castor — 2 operation(s) for repeating-data.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - repeating-data
  properties:
  - type: OpenAPI
    url: openapi/castoredc-repeating-data-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-repeating-data-data-entry-api
  name: Castor Repeating Data Data Entry API
  description: The repeating-data-data-entry API from Castor — 2 operation(s) for repeating-data-data-entry.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - repeating-data-data-entry
  properties:
  - type: OpenAPI
    url: openapi/castoredc-repeating-data-data-entry-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-repeating-data-form-api
  name: Castor Repeating Data Form API
  description: The repeating-data-form API from Castor — 2 operation(s) for repeating-data-form.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - repeating-data-form
  properties:
  - type: OpenAPI
    url: openapi/castoredc-repeating-data-form-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-repeating-data-instance-api
  name: Castor Repeating Data Instance API
  description: The repeating-data-instance API from Castor — 5 operation(s) for repeating-data-instance.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - repeating-data-instance
  properties:
  - type: OpenAPI
    url: openapi/castoredc-repeating-data-instance-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-report-api
  name: Castor Report API
  description: The report API from Castor — 2 operation(s) for report.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Report
  tags_raw:
  - report
  properties:
  - type: OpenAPI
    url: openapi/castoredc-report-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-report-data-entry-api
  name: Castor Report Data Entry API
  description: The report-data-entry API from Castor — 2 operation(s) for report-data-entry.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - report-data-entry
  properties:
  - type: OpenAPI
    url: openapi/castoredc-report-data-entry-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-report-instance-api
  name: Castor Report Instance API
  description: The report-instance API from Castor — 5 operation(s) for report-instance.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - report-instance
  properties:
  - type: OpenAPI
    url: openapi/castoredc-report-instance-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-report-step-api
  name: Castor Report Step API
  description: The report-step API from Castor — 2 operation(s) for report-step.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - report-step
  properties:
  - type: OpenAPI
    url: openapi/castoredc-report-step-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-role-api
  name: Castor Role API
  description: The role API from Castor — 2 operation(s) for role.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Role
  tags_raw:
  - role
  properties:
  - type: OpenAPI
    url: openapi/castoredc-role-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-site-api
  name: Castor Site API
  description: The site API from Castor — 2 operation(s) for site.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Site
  tags_raw:
  - site
  properties:
  - type: OpenAPI
    url: openapi/castoredc-site-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-step-api
  name: Castor Step API
  description: The step API from Castor — 2 operation(s) for step.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Step
  tags_raw:
  - step
  properties:
  - type: OpenAPI
    url: openapi/castoredc-step-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-study-api
  name: Castor Study API
  description: The study API from Castor — 3 operation(s) for study.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - Study
  tags_raw:
  - study
  properties:
  - type: OpenAPI
    url: openapi/castoredc-study-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-study-data-entry-api
  name: Castor Study Data Entry API
  description: The study-data-entry API from Castor — 4 operation(s) for study-data-entry.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - study-data-entry
  properties:
  - type: OpenAPI
    url: openapi/castoredc-study-data-entry-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-study-statistics-api
  name: Castor Study Statistics API
  description: The study-statistics API from Castor — 1 operation(s) for study-statistics.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - study-statistics
  properties:
  - type: OpenAPI
    url: openapi/castoredc-study-statistics-api-openapi.yml
  - type: Documentation
    url: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  - type: APIReference
    url: https://data.castoredc.com/api
  - type: PostmanCollection
    url: collections/castoredc.postman_collection.json
  - type: OpenCollection
    url: collections/castoredc.opencollection.json
- aid: castoredc:castoredc-study-user-api
  name: Castor Study User API
  description: The study-user API from Castor — 2 operation(s) for study-user.
  humanURL: https://helpdesk.castoredc.com/hc/en-us/articles/27149233860509-Castor-EDC-CDMS-Application-Programming-Interface-API
  baseURL: https://data.castoredc.com/api
  tags:
  - study-user
  properties:


# --- truncated at 32 KB (39 KB total) ---
# Full source: https://artifacts.apis.io/castoredc/apis.yml

Castor API — frequently asked questions

Does Castor have an API?

Yes. APIs.io lists 45 APIs from Castor, including Castor Metadata API, Castor Beta API and Castor Castor Internal API, and 42 more.

Is there an OpenAPI specification for the Castor API?

Yes. APIs.io indexes 45 OpenAPI specifications for Castor, each linked for download from this page.

How do I authenticate with the Castor API?

Castor documents its authentication (oauth2 · 1 scheme). The details are profiled on APIs.io as Castoredc Authentication.

How much does the Castor API cost?

APIs.io lists 3 pricing plans for Castor, with each plan's price, limits and inclusions under Pricing on this page.

Is the Castor API ready for AI agents?

Castor has a Kin Score of 31.0 out of 100 (thin) and an Agent Readiness score of 27.5 (agent-aware), scored by API Evangelist on 2026-11-06.

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find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/castoredc"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/castoredc/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/castoredc/evidence"

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