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the Study Information System (SIS) and single sign-on are gated behind eduID.cz / Shibboleth (SAML) authentication and do not publish an open API.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

38.6/100 thin ▬ flat Agent 34/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFree

6 APIs

EducationHigher EducationUniversityResearchOpen DataRepositoryOAI-PMHNatural Language ProcessingCzechiaEurope

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 38.6/100 · thin

Contract Quality 12.2 / 25

Developer Ergonomics 2.2 / 20

Commercial Clarity 5.8 / 20

Operational Transparency 3.4 / 13

Governance 7.0 / 12

Discoverability 7.4 / 10

Agent readiness — 34/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

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

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: '0.19'
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:
  - 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
  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
  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