# OPenn — Open Manuscript Data

**Canonical:** https://apis.io/apis/university-of-pennsylvania/openn/  
**Provider:** University of Pennsylvania — https://apis.io/providers/university-of-pennsylvania/  
**Base URL:** https://openn.library.upenn.edu/Data/  
**Documentation:** https://openn.library.upenn.edu/

OPenn — Open Manuscript Data is one of 10 APIs that [University of Pennsylvania](https://apis.io/providers/university-of-pennsylvania/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Open Data, Digital Collections, Library, TEI, and Public Domain. The published artifact set on APIs.io includes API documentation.

Penn Libraries' bulk open-data site publishing high-resolution manuscript images and TEI/XML descriptions in the public domain, laid out as a plainly-navigable directory tree (openn.library.upenn.edu/Data/ returned HTTP 200). Not an API — there is no query interface — but it is genuine institution-operated machine-readable open data, and recorded as such rather than padded into an API entry.

## Machine-readable artifacts (2)

- **Documentation** — https://openn.library.upenn.edu/ReadMe.html
- **x-bulk-data** — https://openn.library.upenn.edu/Data/

## Other University of Pennsylvania APIs (9)

- [Penn Courses API (Penn Course Alert / Plan / Review / Degree Plan)](https://apis.io/apis/university-of-pennsylvania/penn-courses/)
- [Penn Clubs API](https://apis.io/apis/university-of-pennsylvania/penn-clubs/)
- [Penn SDK (Python)](https://apis.io/apis/university-of-pennsylvania/penn-sdk-python/)
- [Penn SDK (JavaScript / Node)](https://apis.io/apis/university-of-pennsylvania/penn-sdk-js/)
- [PennKey Identity Provider — SAML 2.0 / Shibboleth Metadata](https://apis.io/apis/university-of-pennsylvania/pennkey-identity-provider/)
- [ScholarlyCommons at Penn — OAI-PMH](https://apis.io/apis/university-of-pennsylvania/scholarlycommons-oai-pmh/)
- [ScholarlyCommons at Penn — DSpace REST API](https://apis.io/apis/university-of-pennsylvania/scholarlycommons-rest/)
- [Penn Libraries Franklin Catalog — JSON API](https://apis.io/apis/university-of-pennsylvania/franklin-catalog/)
- [Colenda Digital Repository — Search JSON](https://apis.io/apis/university-of-pennsylvania/colenda/)

## Tags

Open Data, Digital Collections, Library, TEI, Public Domain

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