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Conversational AI Engine: Create advanced voice apps by combining Agora's real-time audio with powerful conversational AI.

Does the Agora Signaling SDK limit concurrent users or channel message frequency?

The Agora Signaling SDK does not impose a hard limit on the number of concurrent online users. However, your pricing plan may impose a Peak Concurrent User (PCU) limit. Exceeding this limit could result in additional charges or service restrictions.

Agora recommends the following maximum number of channel messages per second for a single channel:

Concurrent online users in a single channelNumber of channel messages per second
< 1,000< 200
≥ 1,000 and < 10,000< 100
≥ 10,000< 30
info
  • If the number of messages per second exceeds the recommended values, latency can increase significantly and may also cause the following issues:
    • The user cannot send or receive messages.
    • The user always stays in the RECONNECTING state or keeps switching between the CONNECTED state and the RECONNECTING state. For other users, the current user may appear offline.
  • Agora provides a customized service to increase the number of messages per second without affecting latency or stability. Contact support@agora.io for more information.