# Princeton University **Canonical:** https://apis.io/providers/princeton/ **Website:** https://www.princeton.edu/ **APIs profiled:** 14 Princeton University is a private Ivy League research university in Princeton, New Jersey. Its programmable footprint is real but almost entirely the work of one unit — Princeton University Library — and it is one of the few institutions in this cohort that operates its own machine-readable contract rather than a vendor's. The Library publishes an OpenAPI 3.1.1 document for its Allsearch API at allsearch-api.princeton.edu, serves a Swagger UI alongside it, open-sources the application behind it, and runs a family of unauthenticated Blacklight JSON endpoints across the catalog, digital collections, finding aids, maps and the Princeton Data Commons research-data portal. The Art Museum runs a separate open, no-authentication collections API documented in prose on GitHub. Princeton also operates its own Shibboleth identity provider with published SAML 2.0 metadata, an OAI-PMH 2.0 endpoint on Figgy, and DataCite DOI registration under three of its own repository clients. Everything outside the Library is gated: the OIT enterprise gateway at api.princeton.edu runs WSO2 API Manager behind NetID or service-account OAuth2, and the developer portal that used to front it, api-store.princeton.edu, no longer resolves at all. Course, registrar, dining and directory data exist as APIs but are not reachable by anyone without a Princeton credential, so no public course-catalog surface is claimed here. Princeton's teaching and library-discovery layers are vendor tenancies — Canvas and Ex Libris Alma/Primo — and are recorded as relationships, not as Princeton contracts. ## Kin Score — 38.7 / 100 (thin) Scored 2026-08-20 under rubric 0.12.0. Trend: rising (+20.3 from 18.4). | Facet | Score | |---|---| | Discoverability | 55.6 | | Contract Quality | 44.6 | | Governance | 29.5 | | Contract Governance | 29.5 | | Operational Transparency | 26.3 | | Developer Ergonomics | 13.1 | | Commercial Clarity | 39.5 | | Access Clarity | 39.5 | Regulatory layer — **Education & Research**: 57.4 (matched via tags). ## Agent readiness — 36.3 (agent-ready) | Dimension | Value | |---|---| | Spec Presence | yes | | Agentic Access | no | | Reversibility Documented | no | | MCP Server | no | | Auth Clarity | yes | | Idempotency | no | | Error Semantics | documented | | OpenAPI Examples | verified | | Rate Limit Signal | documented | | Event Surface Described | no | | Agent Skills | no | | Well Known Catalog | no | | Consent Identity | no | | Agent Card | no | | Dry Run Mode | no | ## Access Free — onboarding: unknown, pricing: free, trial: no (confidence: high). ## APIs (14) - **Princeton University Library Allsearch API** — The backend API for allsearch.princeton.edu, Princeton University Library's federated search. Fourteen operations fan one uniform envelope — number, records, more — across the c... - **Princeton University Art Museum API** — Open, REST-style API providing developer access to data about the Princeton University Art Museum and its collections. Four surfaces: objects (with a label-level /tombstone sub-... - **Princeton OIT API Gateway** — Princeton's Office of Information Technology enterprise API gateway, running WSO2 API Manager. Fronts institutional APIs — ActiveDirectory user and group lookups, PrincetonInfo ... - **Princeton University Library Catalog (Orangelight)** — Princeton's library catalog at catalog.princeton.edu, a Blacklight application the Library writes and maintains itself as pulibrary/orangelight. Every route answers to a .json s... - **PUL Bibliographic Data Web Service (Bibdata)** — Princeton University Library's own bibliographic data service at bibdata.princeton.edu. A Rails application (pulibrary/bibdata) that reads from Alma and re-serves bibliographic ... - **Figgy Digital Repository — OAI-PMH and IIIF** — Figgy is Princeton University Library's Valkyrie-based digital repository backend (pulibrary/figgy). It serves IIIF manifests for digitised material and exposes an OAI-PMH 2.0 m... - **Princeton Data Commons — Discovery** — Princeton's research data repository, split into pdc_describe for deposit and description and pdc_discovery for the public portal at datacommons.princeton.edu/discovery. Both ar... - **DataSpace Institutional Repository — OAI-PMH** — DataSpace is Princeton's older DSpace-based institutional repository for theses, dissertations and archived research output, with an OAI-PMH metadata-harvesting endpoint and con... - **Princeton University Library Finding Aids (PULFAlight)** — Archival finding aids for Princeton's special collections and the Mudd Manuscript Library, served by an ArcLight application the Library maintains as pulibrary/pulfalight. The B... - **Princeton University Library Maps and Geospatial Data (PUL Map)** — GeoBlacklight application at maps.princeton.edu (pulibrary/pulmap) serving Princeton's geospatial data catalog. The .json surface is anonymously readable and the records follow ... - **Digital PUL (DPUL)** — Princeton's public digital collections site at dpul.princeton.edu (pulibrary/dpul), the presentation layer over Figgy. Blacklight .json endpoints return collection and item reco... - **Princeton Shibboleth Identity Provider — SAML 2.0 Metadata** — Princeton's campus identity provider publishes signed SAML 2.0 metadata at idp.princeton.edu/idp/shibboleth. The EntityDescriptor names Princeton University, carries administrat... - **Ex Libris Alma / Primo VE — Princeton tenancy (01PRI_INST)** — Princeton's library management and discovery layer runs on Ex Libris, with institution code 01PRI_INST: Alma at na05.alma.exlibrisgroup.com and a Primo VE instance at princeton.... - **Canvas LMS — Princeton tenancy** — Princeton's learning management system is Instructure Canvas at princeton.instructure.com. The host is live behind a Cloudflare interstitial (403 to non-browser clients). Any Ca... ## Security (2) - **Princeton Authentication** — none/oauth2/saml · 4 schemes - **Princeton Domain Security** — TLSv1.3 · DMARC ## Plans (1) - **Princeton Plans Pricing** ## Tags University, Higher Education, Education, Ivy League, United States, New Jersey, Research Library, Research Data, Open Data, Digital Collections, Identity Federation, Museum --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/princeton/). Scores are computed from the provider's own public artifacts under a published rubric.