Wikimedia EventStreams (live wiki edit / activity streams)

Wikimedia EventStreams (live wiki edit / activity streams)

Wikimedia's EventStreams service publishes live Server-Sent-Events streams of edits, page creations and other activity across Wikipedia and sister wiki projects, including the public recentchange stream. The docs say: "EventStreams is a web service that exposes continuous streams of structured event data."

Coverage

Public streams including recentchange (MediaWiki Recent changes events), consumable over HTTP via Server-Sent Events (e.g. the browser EventSource API). Update cadence: continuous/real-time (live stream); no numeric rate limit is stated.

Verdict

Real-time Server-Sent-Events streams of edits, page creations and other activity across Wikipedia and sister wiki projects, no key — for example the public recentchange stream of live wiki edits. Licensed CC-BY-SA-4.0 for wiki text contributions (the source of these events), per the Wikimedia Foundation's Terms of Use: "When you submit text to which you hold the copyright, you agree to license it under: Creative Commons Attribution-ShareAlike 4.0 International License (\"CC BY-SA 4.0\")" — the same clause also offers the GNU Free Documentation License as an alternative, and reusers may comply with either. This licence covers Wikimedia wiki text generally, not the event-stream payloads as a separate stream-specific licence; non-text media on the projects may carry other compatible licences per the same Terms of Use page. Distinct from the live wikimedia-pageviews and wikidata-query-service entries (different data and access pattern). Rate limits: Not stated numerically; docs direct automated clients to send an identifying User-Agent: "For the User-Agent header, see mw:API:Etiquette." Signal Lab links only.