# Wikisource

**Canonical:** https://apis.io/providers/wikisource/  
**Website:** https://wikisource.org  
**APIs profiled:** 10

Wikisource is the Wikimedia Foundation's free library of source texts — public-domain and freely-licensed books, historical documents, legal texts, constitutions, speeches, and other transcribed primary-source works in over 70 languages. The platform exposes its content through the same API surfaces as all MediaWiki installations: the MediaWiki Action API (action=query|parse|edit at /w/api.php), the MediaWiki Core REST API (/w/rest.php/v1/ for page CRUD, search, history, and transforms), and the legacy Wikimedia REST API v1 (/api/rest_v1/ for cached reads at up to 200 RPS). All APIs are free at point of use and governed by the Wikimedia API usage guidelines — a contactable User-Agent is mandatory and serial requests are preferred over parallel bursts.

## Kin Score — 40.7 / 100 (developing)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 40.7).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 53.8 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 9.5 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

Regulatory layer — **Government & Public Sector**: 38.9 (matched via tags).

## Agent readiness — 28.4 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | partial |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Free · Open access — onboarding: open, pricing: free, trial: no (confidence: medium).

## APIs (10)

- **MediaWiki Action API** — The primary programmatic interface to Wikisource, exposed at /w/api.php on each language subdomain. Operations are dispatched via the action= parameter (query, parse, edit, uplo...
- **MediaWiki Core REST API** — Modern REST surface available on Wikisource at /w/rest.php/v1/. Provides page reads (source, HTML, bare metadata), full-text search, file metadata, page history, revision retrie...
- **Wikimedia REST API v1** — Caching-optimised read API available at /api/rest_v1/ on each Wikisource language subdomain. Provides page summaries, full HTML, media lists, and language links for Wikisource p...
- **Wikisource Citation API** — generation of citation data
- **Wikisource Math API** — formula rendering
- **Wikisource Mobile API** — The Mobile API from Wikisource — 3 operation(s) for mobile.
- **Wikisource Page content API** — page content in different formats
- **Wikisource Reading lists API** — Private lists of selected pages
- **Wikisource Recommendation API** — contribution recommendations
- **Wikisource Transforms API** — convert content between HTML and Wikitext

## Agentic access (1)

- **Wikisource Agentic Access** — 40 operations · 19 acting

## Security (2)

- **Wikisource Domain Security** — TLSv1.3 · HSTS · DMARC
- **Wikisource Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Wikisource Plans Pricing**

## Tags

Open Data, Open Knowledge, Literature, Historical Documents, Public Domain, Transcription, Primary Sources, Non-Profit, Open-Source

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/wikisource/). Scores are computed from the provider's own public artifacts under a published rubric.