Demo streams

Last updated Sep 30, 2026 Cloudflare publishes long-running streams on the public MoQ relays. Use these streams to test client implementations without setting up your own publisher.

Available namespaces

The relays host the following namespaces. A check mark indicates that a namespace is available for that draft.

Subscribe with moq-sub

moq-sub from the moq-rs ↗︎ project writes the media as fragmented MP4 to standard output. Select a draft to view the matching command.

Draft-14 supports every namespace in the table. This example subscribes to /bbb:

moq-sub https://draft-14.cloudflare.mediaoverquic.com --name bbb

Draft-16 supports only /bbb. Its relay URL includes the provided JSON Web Token (JWT):

moq-sub https://draft-16.cloudflare.mediaoverquic.com/eyJhbGciOiJFZERTQSIsImtpZCI6Im1vcS12MSIsInR5cCI6IkpXVCJ9.eyJhdWQiOiJtb3EuY2xvdWRmbGFyZS5jb20iLCJleHAiOjE4MTY0NDA0NTcsImlhdCI6MTc4NDkwNDQ1OCwiaXNzIjoiY2xvdWRmbGFyZSIsImp0aSI6IjgxMTc4MjIyZmIzNTVjMDQ3YmM0MDNkODQ2NWI0YWIzIiwib3BlcmF0aW9ucyI6WyJzdWJzY3JpYmUiXSwic3ViIjoiZWJkMWZlZDdhZjMzNzYzMjc3MDc0ODQ0NThmYWIxZmEifQ.VlTscBfWmjSybWx1NpmF0f1g5Gtfxg5H4rkUQQa2JHATtjGwO5iwl71DAS5kJ98-3ukPvmGe9RE7peYs_dqgCg --name bbb

The provided JWT lets you subscribe without provisioning a relay or creating a token.

To play the stream with ffplay, append | ffplay - to either command.

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description: Supported and unsupported MoQ Transport messages for each draft version deployed by Cloudflare. title: MoQ Feature Matrix image: https://developers.cloudflare.com/moq/feature-matrix/og.png?v=2db53333c1a178be

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