An RTMP stream key is a private value issued by a streaming destination. It tells the destination which channel or live event should receive an incoming broadcast and helps authorize that connection.

The key is normally used together with an RTMP server URL. The URL identifies the receiving server; the key identifies your specific stream.

Where Does a Stream Key Come From?

The destination platform supplies it when you create or configure a live stream. Depending on account eligibility and current platform rules, that could be YouTube, Facebook, Twitch, Kick, TikTok, Instagram, or another RTMP-compatible service.

SAIUNES does not invent the destination key. You copy it from the platform you want to reach and enter it when creating your stream in SAIUNES Live Studio.

RTMP URL Versus Stream Key

The two values have different roles:

  • The RTMP server URL points to the destination's ingest server.
  • The live stream key connects the incoming signal to the correct account, channel, or event.

Both must be entered accurately. A valid URL paired with the wrong key may fail or direct the signal somewhere unintended.

For the complete connection sequence, read how to stream video to an RTMP destination.

Why the Key Must Stay Private

Anyone who obtains an active key may be able to send content to the associated destination. Treat it like a password:

  • Do not show it in screenshots or tutorials
  • Do not paste it into public documents or comments
  • Do not commit it to source code
  • Share it only through approved secure methods
  • Regenerate it immediately if you believe it was exposed

Some destinations issue a reusable key; others issue one for a specific event. Read the platform's own instructions before assuming how long a key remains valid.

Using the Key in SAIUNES

Open Live Studio and select Create stream. Enter the stream name and destination URL, paste the private key, select the prerecorded MP4, and select Create stream.

SAIUNES uploads and processes the video. This usually takes about 10 seconds to 1 minute depending on duration and file size, although larger sources can take longer. Once Ready, start immediately or schedule a start, then run non-stop or schedule a pause.

The illustrated prerecorded streaming setup shows where each value belongs without displaying a real credential.

When a Key Stops Working

A connection can fail if the key was regenerated, expired, copied with an extra space, belongs to another event, or no longer has live-stream permission. Obtain the current value directly from the destination and update the SAIUNES stream settings when necessary.

If problems continue, work through the 24/7 stream troubleshooting guide.

Protect the Connection

Stream key security is a small but critical part of live broadcasting. Keep the credential private, verify that it belongs to the intended event, and replace it promptly after any exposure.