Charles University

Charles University (Univerzita Karlova), founded in 1348 in Prague, is the largest and oldest university in Czechia and is ranked #246 in the QS World University Rankings 2025. Its public developer/API footprint is limited and primarily academic-infrastructure oriented: institutional DSpace repositories expose standards-based OAI-PMH metadata-harvesting endpoints, and the Institute of Formal and Applied Linguistics (UFAL, Faculty of Mathematics and Physics) operates the LINDAT/CLARIAH-CZ platform which publishes documented public REST web services for natural-language processing. Core student-facing systems such as the Study Information System (SIS) and single sign-on are gated behind eduID.cz / Shibboleth (SAML) authentication and do not publish an open API.

Charles University publishes 3 APIs on the APIs.io network: languages API, models API, and root API. Tagged areas include Education, Higher Education, University, Research, and Open Data.

The Charles University catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Charles University’s developer surface includes GitHub presence, authentication, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

34.7/100 thin ▬ flat Agent 32/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

AccessFree

6 APIs

EducationHigher EducationUniversityResearchOpen DataRepositoryOAI-PMHNatural Language ProcessingCzechiaEurope

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 34.7/100 · thin

Contract Quality 10.5 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 4.9 / 17

Operational Transparency 2.9 / 11

Contract Governance 1.0 / 10

Discoverability 6.3 / 9

Regulatory Posture 6.4 / 15

Agent readiness — 32/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Regulatory Posture applies to this provider. Its tags matched the Education & Research regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/charles: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

Rate Limits 1

Documented rate limits and quota policies.

Charles Rate Limits

1 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Examples 3

Example request and response payloads for these APIs.

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 2

The organization behind the API

Website

Website

LinkedIn

Other 1

Properties that don't map to a standard resource type

Review

Review

Source (apis.yml)

aid: charles
name: Charles University
description: 'Charles University (Univerzita Karlova), founded in 1348 in Prague, is the largest and oldest university in
  Czechia and is ranked #246 in the QS World University Rankings 2025. Its public developer/API footprint is limited and primarily
  academic-infrastructure oriented: institutional DSpace repositories expose standards-based OAI-PMH metadata-harvesting endpoints,
  and the Institute of Formal and Applied Linguistics (UFAL, Faculty of Mathematics and Physics) operates the LINDAT/CLARIAH-CZ
  platform which publishes documented public REST web services for natural-language processing. Core student-facing systems
  such as the Study Information System (SIS) and single sign-on are gated behind eduID.cz / Shibboleth (SAML) authentication
  and do not publish an open API.'
type: Index
accessModel:
  pricing: free
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Free
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/charles.png
url: https://raw.githubusercontent.com/api-evangelist/charles/refs/heads/main/apis.yml
tags:
- Education
- Higher Education
- University
- Research
- Open Data
- Repository
- OAI-PMH
- Natural Language Processing
- Czechia
- Europe
created: '2026-06-03'
modified: '2026-06-03'
specificationVersion: '0.23'
apis:
- aid: charles:digital-repository-oai
  name: CU Digital Repository OAI-PMH
  description: The Charles University Digital Repository (Digitalni repozitar UK), a DSpace-based institutional repository,
    exposes a public OAI-PMH 2.0 endpoint for metadata harvesting of digitized collections including maps, historical legal
    texts, and study literature.
  humanURL: https://dspace.cuni.cz/
  baseURL: https://dspace.cuni.cz/oai/request
  tags:
  - Repository
  - OAI-PMH
  - DSpace
  - Metadata
  - Research
  - Open Data
  properties:
  - type: Documentation
    url: https://dspace.cuni.cz/
  - type: GitHub
    url: https://github.com/UKUK-Repository-Dept
- aid: charles:publications-repository-oai
  name: CU Research Publications Repository OAI-PMH
  description: The Charles University Research Publications Repository is a DSpace-based institutional archive where staff
    and students self-archive research outputs. It exposes a public OAI-PMH endpoint for metadata harvesting.
  humanURL: https://publications.cuni.cz/page/about?locale-attribute=en
  baseURL: https://publications.cuni.cz/oai/request
  tags:
  - Repository
  - OAI-PMH
  - DSpace
  - Metadata
  - Research
  - Publications
  properties:
  - type: Documentation
    url: https://publications.cuni.cz/page/about?locale-attribute=en
  - type: GitHub
    url: https://github.com/UKUK-Repository-Dept
- aid: charles:lindat-nametag
  name: LINDAT NameTag API
  description: Public REST API for named-entity recognition and tokenization (NameTag) operated by the Institute of Formal
    and Applied Linguistics (UFAL) at Charles University via the LINDAT/CLARIAH-CZ infrastructure.
  humanURL: https://lindat.mff.cuni.cz/services/nametag/api-reference.php
  baseURL: https://lindat.mff.cuni.cz/services/nametag/api
  tags:
  - Natural Language Processing
  - Named Entity Recognition
  - REST
  - Research
  properties:
  - type: Documentation
    url: https://lindat.mff.cuni.cz/services/nametag/api-reference.php
- aid: charles:charles-languages-api
  name: Charles University languages API
  description: Operations with source and target languages
  humanURL: https://dspace.cuni.cz/
  baseURL: https://dspace.cuni.cz/oai/request
  tags:
  - Language
  tags_raw:
  - languages
  properties:
  - type: OpenAPI
    url: openapi/charles-languages-api-openapi.yml
  - type: Documentation
    url: https://lindat.mff.cuni.cz/services/translation/docs
  - type: x-json-schema
    url: json-schema/charles-model-schema.json
  - type: x-json-schema
    url: json-schema/charles-language-schema.json
  - type: x-examples
    url: examples/charles-post-model-item-example.json
  - type: x-rules
    url: rules/charles-rules.yml
  - type: x-vocabulary
    url: vocabulary/charles-vocabulary.yml
  - type: x-json-ld
    url: json-ld/charles-context.jsonld
- aid: charles:charles-models-api
  name: Charles University models API
  description: Operations related to translation models
  humanURL: https://dspace.cuni.cz/
  baseURL: https://dspace.cuni.cz/oai/request
  tags:
  - Models
  tags_raw:
  - models
  properties:
  - type: OpenAPI
    url: openapi/charles-models-api-openapi.yml
  - type: Documentation
    url: https://lindat.mff.cuni.cz/services/translation/docs
  - type: x-json-schema
    url: json-schema/charles-model-schema.json
  - type: x-json-schema
    url: json-schema/charles-language-schema.json
  - type: x-examples
    url: examples/charles-post-model-item-example.json
  - type: x-rules
    url: rules/charles-rules.yml
  - type: x-vocabulary
    url: vocabulary/charles-vocabulary.yml
  - type: x-json-ld
    url: json-ld/charles-context.jsonld
- aid: charles:charles-root-api
  name: Charles University root API
  description: Root resource for navigation to languages/models
  humanURL: https://dspace.cuni.cz/
  baseURL: https://dspace.cuni.cz/oai/request
  tags:
  - Root
  tags_raw:
  - root
  properties:
  - type: OpenAPI
    url: openapi/charles-root-api-openapi.yml
  - type: Documentation
    url: https://lindat.mff.cuni.cz/services/translation/docs
  - type: x-json-schema
    url: json-schema/charles-model-schema.json
  - type: x-json-schema
    url: json-schema/charles-language-schema.json
  - type: x-examples
    url: examples/charles-post-model-item-example.json
  - type: x-rules
    url: rules/charles-rules.yml
  - type: x-vocabulary
    url: vocabulary/charles-vocabulary.yml
  - type: x-json-ld
    url: json-ld/charles-context.jsonld
common:
- type: AgenticAccess
  url: agentic-access/charles-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/charles-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/charles-domain-security.yml
- type: Website
  url: https://www.cuni.cz/UKEN-1.html
- type: GitHub
  url: https://github.com/UKUK-Repository-Dept
- type: LinkedIn
  url: https://www.linkedin.com/school/univerzita-karlova/
- type: Authentication
  url: https://uvt.cuni.cz/UVTEN-37.html
- type: Plans
  url: plans/charles-plans-pricing.yml
- type: RateLimits
  url: rate-limits/charles-rate-limits.yml
- type: FinOps
  url: finops/charles-finops.yml
- type: Review
  url: review.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Charles University

APIs 6

Open Collections 4

Pricing Plans 1