Knowledge and science · by Wikimedia Foundation and volunteer editors

Wikipedia

The free encyclopedia plus a family of public APIs (Action API, REST API, pageviews, live edit stream) and monthly full database dumps of every Wikimedia wiki.

You can query, stream or download the whole of human knowledge as people keep writing it, and reuse it in commercial products if you credit and share alike.

LiveAPI, no keyDownloadCommercial: conditions

Open wikipedia.org ↗ agent.md

For your project

Official API: Official API · Free Unauthenticated bot requests with a compliant User-Agent: 200 req/min; unidentified clients: 10 req/min; dumps: 3 connections per IP
Key: Not needed
“include a meaningful User-Agent header that includes contact information such as an email or full URL” mediawiki.org/wiki/Wikimedia_APIs/Rate_limits
Formats: JSON, HTML, XML, SQL
Data download: Yes xml, sql, json, zim
License: CC BY-SA 4.0 and GFDL (text); media under own licenses; Wikidata structured data CC0 article text; each image or media file has its own license
Commercial use: Commercial use with conditions
“Wikipedia content can be copied, modified, and redistributed if and only if the copied version is made available on the same terms to others and acknowledgment of the authors of the Wikipedia article used is included.” en.wikipedia.org/wiki/Wikipedia:Copyrights
Credit: Credit required
“To re-distribute text on Wikipedia in any form, provide credit to the authors either by including a) a hyperlink (where possible) or URL to the page or pages you are re-using” en.wikipedia.org/wiki/Wikipedia:Copyrights
Embedding: Embedding with conditions
“Wikipedia content can be copied, modified, and redistributed if and only if the copied version is made available on the same terms to others and acknowledgment of the authors of the Wikipedia article used is included.” en.wikipedia.org/wiki/Wikipedia:Copyrights
Using the website: Free

Read on Wikipedia's own pages on Oct 23, 2026 · license or terms · API docs. Check the license page before you ship.

For your agent

A request your code or agent can make with no key:

https://en.wikipedia.org/api/rest_v1/page/summary/Earth

No key needed for reads: send a User-Agent with contact info (otherwise 10 req/min), use the REST page/summary endpoint for cards and dumps or EventStreams for bulk and live data.
Credit authors with a link to the article and release reused text under CC BY-SA 4.0
Check each image's own license on its file page before reuse
Send a descriptive User-Agent with contact info; max 3 parallel connections to dumps

Paste into your agent: Read https://agentgid.com/resources/wikipedia/agent.md before using Wikipedia.

What you can build

Ambient sound from live Wikipedia editsA web page that plays a soft note for every Wikipedia edit happening now, like Listen to Wikipedia, built on the public edit stream.

A 'what the world is reading now' dashboard from the pageviews (Analytics) API
A live map or ticker of edits from the EventStreams recent-changes feed
An offline or RAG knowledge base built from the monthly XML dumps, shipped with CC BY-SA credit

More in Knowledge and science

All 5 →

arXiv Much new research, especially in AI and physics, shows up here first, and you can query or mirror all of its metadata freely. API, no keyDownloadCommercial OK timeanddate.com It answers the deceptively hard questions of time: when DST flips in a given country, when the sun sets there, and which day is a holiday where. LiveLicense unclear ScienceDaily It is a steady daily stream of new findings across every field, each story pointing back to the institution and the paper behind it. Commercial: conditions Wolfram|Alpha It computes answers instead of searching for them, so you get step-by-step math and live figures from curated data. LiveAPICommercial: conditions

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