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Streaming

Stream from Castr

Send your stream to Castr once and let it pass it on to CamuCam – a Custom RTMP platform with your server and key.

Castr takes your stream once and passes it on to the platforms you choose. CamuCam is one of them as a Custom RTMP platform.

Your server and key for Castr

  1. On Go live, open Stream to CamuCam from… and pick the Castr tab.
  2. Copy the Server URL and the Stream key with their copy buttons. The eye button shows the key.

The key starts with your handle and ends in &via=castr. Always copy it whole: the end only tells us the stream came through Castr.

Add CamuCam in Castr

  1. In Castr, open your stream and add a new platform.
  2. Pick Custom RTMP.
  3. Paste the Server URL as the RTMP server and the Stream key as the stream key, name it CamuCam, and save.
  4. Switch the CamuCam platform on and send your stream to Castr as before.

What looks best

Castr passes your picture on as it gets it – set it up in your encoder:

  • Upright (9:16): 720×1280 or 1080×1920. Landscape works too.
  • Keyframe interval 2 s.
  • Bitrate 2.5–4.5 Mbit/s.

Going live and if it doesn’t connect

On Go live Waiting for your encoder… turns into Your encoder is live within seconds. If nothing happens: copy the key again, whole; after New key on Go live paste the new one into Castr; check that the CamuCam platform is switched on.

See also: Stream from Restream.io, Go live with OBS.

Last checked: 25 October 2026