# UTokyo Academic Assets Archives Portal API

**Canonical:** https://apis.io/apis/university-of-tokyo/archives-portal/  
**Provider:** University of Tokyo — https://apis.io/providers/university-of-tokyo/  
**Base URL:** https://da.dl.itc.u-tokyo.ac.jp/portal  
**Documentation:** https://da.dl.itc.u-tokyo.ac.jp/portal/help/api

UTokyo Academic Assets Archives Portal API is one of 5 APIs that [University of Tokyo](https://apis.io/providers/university-of-tokyo/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Digital Archives, Library, Metadata, Open Access, and JSON-LD. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and a JSON-LD context.

The one surface where the University of Tokyo publishes actual API documentation — at /portal/help/api, in Japanese only. It names a search API described as OpenSearch and a harvesting API described as OAI-PMH, and alongside them the portal serves item representations as JSON-LD (application/ld+json, DC-NDL vocabulary), CSV and refer/BibIX through a _format parameter. The search endpoint itself returns HTTP 403 to external automated clients even though its OpenSearch description document is served at 200; the item representations and manifests are open.

## Machine-readable artifacts (9)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/university-of-tokyo/refs/heads/main/openapi/university-of-tokyo-archives-portal-openapi.yml
- **OpenAPI Source** — https://raw.githubusercontent.com/api-evangelist/university-of-tokyo/refs/heads/main/openapi/_original/university-of-tokyo-archives-portal-openapi.yml
- **Documentation** — https://da.dl.itc.u-tokyo.ac.jp/portal/help/api
- **APIReference** — https://da.dl.itc.u-tokyo.ac.jp/portal/help/api
- **Examples** — https://raw.githubusercontent.com/api-evangelist/university-of-tokyo/refs/heads/main/examples/university-of-tokyo-archives-item-jsonld.json
- **JSONLD** — https://raw.githubusercontent.com/api-evangelist/university-of-tokyo/refs/heads/main/json-ld/university-of-tokyo-context.jsonld
- **Vocabulary** — https://raw.githubusercontent.com/api-evangelist/university-of-tokyo/refs/heads/main/vocabulary/university-of-tokyo-vocabulary.yml
- **SourceCode** — https://github.com/utda
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/university-of-tokyo/refs/heads/main/apis.yml

## Other University of Tokyo APIs (4)

- [UTokyo IIIF Presentation and Image APIs](https://apis.io/apis/university-of-tokyo/iiif/)
- [UTokyo OAI-PMH Metadata Harvesting](https://apis.io/apis/university-of-tokyo/oai-pmh/)
- [UTokyo Repository Records API](https://apis.io/apis/university-of-tokyo/repository-records/)
- [UTokyo Identity Federation (GakuNin SAML 2.0)](https://apis.io/apis/university-of-tokyo/gakunin-identity-federation/)

## Tags

Digital Archives, Library, Metadata, Open Access, JSON-LD, OpenSearch, IIIF

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