Mercure
AGPL-3.0 SSE hub; homepage still says MIT
Comms / Realtime · AGPL-3.0 · 5.4k
Reviewed 2026-09-03 · last push 2026-10-20 · repo checked 2026-10-21
What's Good
LICENSE file is GNU AGPLv3. SSE hub: publish with POST, subscribe with EventSource. Caddy-based, Docker/Helm, Last-Event-ID replay. Official realtime path for Symfony. Self-host the Hub.
The Catch
Homepage still says the Hub is MIT-licensed. The LICENSE file is AGPL-3.0 — print the file. SSE, not WebSockets, not Pusher protocol. Distinct from Socket.IO and Soketi. Cloud/Enterprise exist; check their pricing page. OSS self-host is the free path.
Verdict
AGPL SSE hub. Believe the LICENSE file, not the MIT line on the homepage.
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Markdown
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