# Nedap Ons API

**Canonical:** https://apis.io/apis/nedap/nedap-ons-api/  
**Provider:** Nedap — https://apis.io/providers/nedap/  
**Base URL:** https://api.ons.io  
**Documentation:** https://ons-api.nl/english/english.html

Nedap Ons API is one of 2 APIs that [Nedap](https://apis.io/providers/nedap/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Healthcare, Electronic Health Records, FHIR, openEHR, and Interoperability. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, a getting-started guide, and authentication docs.

The REST API for the Nedap Ons electronic health record suite used by Dutch care organisations. 926 operations across 782 paths covering clients, employees, dossiers and reports, care plans, goals and actions, medical notes, agenda and rostering, care allocation and orders, declarations, payroll and expenses, surveys and client stories — plus an openEHR composition and archetype surface, three FHIR R3 bundle-wrapper endpoints, and domain models written against the Dutch ZIBs, SNOMED CT and the Omaha System. Requests are authenticated with an SSL client certificate signed by Nedap's own Certificate Authority and bound to one connector and one customer environment.

## Machine-readable artifacts (9)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/nedap/refs/heads/main/openapi/nedap-ons-openapi-original.json
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/nedap/refs/heads/main/openapi/nedap-ons-authorization-openapi-original.json
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/nedap/refs/heads/main/openapi/nedap-ons-webhooks-openapi-original.yml
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/nedap/refs/heads/main/openapi/nedap-ons-deprecated-openapi-original.json
- **Documentation** — https://ons-api.nl/english/english.html
- **APIReference** — https://ons-api.nl/english/technical/APIS.html
- **GettingStarted** — https://ons-api.nl/english/integration_process/Integration_process.html
- **Authentication** — https://ons-api.nl/english/technical/Certificate_requirements.html
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/nedap/refs/heads/main/apis.yml

## Other Nedap APIs (1)

- [Nedap Retail iD Cloud API](https://apis.io/apis/nedap/nedap-retail-id-cloud-api/)

## Tags

Healthcare, Electronic Health Records, FHIR, openEHR, Interoperability

---

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