# Delft University of Technology Reference API

**Canonical:** https://apis.io/apis/tu-delft/tu-delft-reference-api/  
**Provider:** Delft University of Technology — https://apis.io/providers/tu-delft/  
**Base URL:** https://data.4tu.nl  
**Documentation:** https://data.4tu.nl/

Delft University of Technology Reference API is one of 6 APIs that [Delft University of Technology](https://apis.io/providers/tu-delft/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 1 JSON Schema definition. Tagged areas include Reference. The published artifact set on APIs.io includes an OpenAPI specification, authentication docs, API documentation, a support channel, and 1 JSON Schema.

Controlled vocabularies — licenses, categories and depositing groups.

## Operations (3)

| Method | Path | Summary |
|---|---|---|
| GET | `/v2/licenses` | List the licenses a depositor may apply |
| GET | `/v2/categories` | List the subject category taxonomy |
| GET | `/v3/groups` | List the depositing institutions |

## Machine-readable artifacts (14)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/tu-delft/refs/heads/main/openapi/tu-delft-reference-api-openapi.yml
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/tu-delft/refs/heads/main/json-schema/tu-delft-4tu-dataset.json
- **Examples** — https://raw.githubusercontent.com/api-evangelist/tu-delft/refs/heads/main/examples/tu-delft-4tu-researchdata-examples.json
- **Rules** — https://raw.githubusercontent.com/api-evangelist/tu-delft/refs/heads/main/rules/tu-delft-4tu-rules.yml
- **Errors** — https://raw.githubusercontent.com/api-evangelist/tu-delft/refs/heads/main/errors/tu-delft-4tu-errors.yml
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/tu-delft/refs/heads/main/authentication/tu-delft-authentication.yml
- **Scopes** — https://raw.githubusercontent.com/api-evangelist/tu-delft/refs/heads/main/scopes/tu-delft-scopes.yml
- **Conformance** — https://raw.githubusercontent.com/api-evangelist/tu-delft/refs/heads/main/conformance/tu-delft-conformance.yml
- **Lifecycle** — https://raw.githubusercontent.com/api-evangelist/tu-delft/refs/heads/main/lifecycle/tu-delft-lifecycle.yml
- **Vocabulary** — https://raw.githubusercontent.com/api-evangelist/tu-delft/refs/heads/main/vocabulary/tu-delft-vocabulary.yml
- **Documentation** — https://djehuty.4tu.nl/
- **SourceCode** — https://github.com/4TUResearchData/djehuty
- **TermsOfService** — https://data.4tu.nl/info/about-4turesearchdata/policies-guidelines
- **Support** — https://data.4tu.nl/info/about-4turesearchdata/contact

## Other Delft University of Technology APIs (5)

- [TU Delft SAML 2.0 Identity Provider (NetID)](https://apis.io/apis/tu-delft/identity-federation/)
- [Elsevier Pure research portal (TU Delft tenancy)](https://apis.io/apis/tu-delft/pure/)
- [Delft University of Technology Account API](https://apis.io/apis/tu-delft/tu-delft-account-api/)
- [Delft University of Technology Collections API](https://apis.io/apis/tu-delft/tu-delft-collections-api/)
- [Delft University of Technology Datasets API](https://apis.io/apis/tu-delft/tu-delft-datasets-api/)

## Tags

Reference

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