Limits (25)

Last updated Oct 19, 2026 RealtimeKit applies limits to API requests and SDK operations. Use these values when designing your application.

API rate limits

RealtimeKit API requests count toward the global Cloudflare API limit, which applies across all api.cloudflare.com API requests. Recording APIs are subject to a separate limit.

API Limit
All RealtimeKit APIs 3,500 requests per five minutes
Recording APIs 1,000 requests per 50 seconds

SDK rate limits

Each participant has a separate limit for SDK operations during an active session. Limits are not shared across participants or applied to your app as a whole. For example, in a two-participant meeting, each participant can send up to 180 text messages per minute.

Operation Limit
Write to a meeting key-value store (set(), update(), delete(), bulkSet(), bulkDelete()) 5 invocations per second
Broadcast a message (broadcastMessage()) 5 invocations per second
Send a text message (sendTextMessage()) 180 invocations per minute
Send a message (sendMessage()) 180 invocations per minute
Send an image (sendImageMessage()) 20 invocations per minute
Send a file (sendFileMessage()) 20 invocations per minute
Fetch connected meetings (getConnectedMeetings()) 60 invocations per minute
Fetch meeting participants (getAllJoinedPeers()) 10 invocations per minute
Update participant permissions (updatePermissions()) 1,000 invocations per minute

Data retention

For the retention periods for recordings, chat, transcripts, analytics, and webhook logs, refer to Data retention.

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