# OpenClinica Clinical Data API

**Canonical:** https://apis.io/apis/openclinica/openclinica-clinical-data-api/  
**Provider:** OpenClinica — https://apis.io/providers/openclinica/  
**Base URL:** https://{subdomain}.build.openclinica.io/user-service/api  
**Documentation:** https://docs.openclinica.com/oc4/how-and-when-to-use-apis/

OpenClinica Clinical Data API is one of 6 APIs that [OpenClinica](https://apis.io/providers/openclinica/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Clinical Data. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

Import and retrieve CRF data using CDISC ODM.

## Machine-readable artifacts (12)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/openclinica/refs/heads/main/openapi/openclinica-clinical-data-api-openapi.yml
- **Documentation** — https://docs.openclinica.com/oc4/how-and-when-to-use-apis/
- **APIReference** — https://docs.openclinica.com/3-1-technical-documents/rest-api-specifications/rest-api-specifications-oauth-and-openclinica/
- **Documentation** — https://docs.openclinica.com/oc4/how-and-when-to-use-apis/oc4-openclinica-4-technical-documentation-participants-add/
- **APIReference** — https://docs.openclinica.com/oc4/how-and-when-to-use-apis/oc4-openclinica-4-technical-documentation-participants-get-participants-study-level-or-site-level/
- **PostmanCollection** — https://raw.githubusercontent.com/api-evangelist/openclinica/refs/heads/main/collections/openclinica.postman_collection.json
- **OpenCollection** — https://raw.githubusercontent.com/api-evangelist/openclinica/refs/heads/main/collections/openclinica.opencollection.json
- **Documentation** — https://docs.openclinica.com/oc4/how-and-when-to-use-apis/oc4-openclinica-4-technical-documentation-events-create-and-update-single-study-event/
- **Documentation** — https://docs.openclinica.com/oc4/how-and-when-to-use-apis/oc4-clinicaldata-import-crf-data/
- **Documentation** — https://docs.openclinica.com/3-1-technical-documents/rest-api-specifications/rest-api-specifications-read-openclinica-odm-metadata-rest-service/
- **APIReference** — https://docs.openclinica.com/3-1-technical-documents/rest-api-specifications/openclinica-restful-urls/
- **Documentation** — https://docs.openclinica.com/oc4/how-and-when-to-use-apis/oc4-participantsbulk-add-bulk-list-participant-ids/

## Other OpenClinica APIs (5)

- [OpenClinica Authentication API](https://apis.io/apis/openclinica/openclinica-authentication-api/)
- [OpenClinica Bulk Operations API](https://apis.io/apis/openclinica/openclinica-bulk-operations-api/)
- [OpenClinica Metadata API](https://apis.io/apis/openclinica/openclinica-metadata-api/)
- [OpenClinica Participants API](https://apis.io/apis/openclinica/openclinica-participants-api/)
- [OpenClinica Study Events API](https://apis.io/apis/openclinica/openclinica-study-events-api/)

## Tags

Clinical Data

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/openclinica/openclinica-clinical-data-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/openclinica/.