# UNC Libraries Catalog Search API (TRLN Discovery / Blacklight)

**Canonical:** https://apis.io/apis/university-of-north-carolina-at-chapel-hill/library-catalog-search/  
**Provider:** University of North Carolina at Chapel Hill — https://apis.io/providers/university-of-north-carolina-at-chapel-hill/  
**Base URL:** https://catalog.lib.unc.edu/catalog.json  
**Documentation:** https://catalog.lib.unc.edu/

UNC Libraries Catalog Search API (TRLN Discovery / Blacklight) is one of 10 APIs that [University of North Carolina at Chapel Hill](https://apis.io/providers/university-of-north-carolina-at-chapel-hill/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Library, Library Catalog, Search, and Blacklight.

The UNC University Library catalog answers machine-readable search over its full bibliographic index at /catalog.json, the Blacklight JSON response format, with query, search_field, facet and pagination parameters carried on the query string. Verified keyless and live on 2026-08-30. The application is TRLN Discovery, the Triangle Research Libraries Network's open-source Blacklight stack, which UNC Libraries deploys and extends itself — its ingest adaptation is public at https://github.com/UNC-Libraries/disco-ingest. No API reference is published; the response shape is Blacklight's.

## Machine-readable artifacts (2)

- **Website** — https://catalog.lib.unc.edu/
- **GitHub** — https://github.com/UNC-Libraries/disco-ingest

## Other University of North Carolina at Chapel Hill APIs (9)

- [Carolina Digital Repository Services API (box-c)](https://apis.io/apis/university-of-north-carolina-at-chapel-hill/cdr-services-api/)
- [UNC Finding Aids Search API (Blacklight JSON:API)](https://apis.io/apis/university-of-north-carolina-at-chapel-hill/finding-aids-search/)
- [UNC Dataverse OAI-PMH Archive](https://apis.io/apis/university-of-north-carolina-at-chapel-hill/dataverse-oai-pmh/)
- [UNC Shibboleth Identity Provider (SAML 2.0 / InCommon)](https://apis.io/apis/university-of-north-carolina-at-chapel-hill/shibboleth-idp/)
- [Facilities SPOTS REST API](https://apis.io/apis/university-of-north-carolina-at-chapel-hill/facilities-spots/)
- [UNC Dataverse Native REST API (Dataverse deployment)](https://apis.io/apis/university-of-north-carolina-at-chapel-hill/dataverse-native-api/)
- [UNC Catalog Course Search API (CourseLeaf)](https://apis.io/apis/university-of-north-carolina-at-chapel-hill/course-catalog-search/)
- [UNC GIS Open Data Hub (ArcGIS Hub DCAT-US)](https://apis.io/apis/university-of-north-carolina-at-chapel-hill/gis-opendata/)
- [UNC Digital Collections Search (OCLC CONTENTdm)](https://apis.io/apis/university-of-north-carolina-at-chapel-hill/digital-collections/)

## Tags

Library, Library Catalog, Search, Blacklight

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