Rate limits

Sendbird applications are rate-limited to ensure the best experience for all users. The rate limits vary depending on your plan's allowed quota of monthly active users (MAU). You can find which rate limits your organization is subject to under Organization settings > General on Sendbird Dashboard. If you exceed the rate limits, Sendbird server will return an error response.

Note : Sendbird organizations created after May 28, 2020, 00:00:00 UTC are automatically rate-limited, while those created before this date will have sufficient time to adjust their applications before rate limits apply.

Plan-based rate limits

By default, the following rate limits apply per endpoint and per application. While the following table shows the maximum values, the number of requests per second in general usage should be set lower.

Method	Free trial	5K MAU	10K MAU	25K MAU	50K MAU	100K+ MAU
`GET`	10/sec	60/sec	100/sec	200/sec	400/sec	600/sec
`POST`	5/sec	10/sec	20/sec	40/sec	100/sec	200/sec
`PUT`	5/sec	10/sec	20/sec	40/sec	100/sec	200/sec
`DELETE`	5/sec	10/sec	20/sec	40/sec	100/sec	200/sec

Note : We recommend you implement a retry logic based on the value of the X-RateLimit-RetryAfter error response. If you need higher rate limits, contact our sales team.

Rate-limited APIs

The following HTTP requests have stricter limits to prevent any server issues it may cause when too many requests are sent at once.

Note: API endpoints are relative to the base URL allocated to your application. In this page, the / endpoint refers to https://api-{application_id}.sendbird.com/v3/.

Scope	HTTP request	Limit
Application	`POST` /migration/{channel_url}	5 requests per second
User	`PUT` /users/{user_id}	5 requests per second
User	`POST` /group_channels	5 requests per second
User	`POST` /group_channels/{channel_url}/invite	5 requests per second
User	`POST` /{channel_type}/{channel_url}/messages	5 requests per second
User	`PUT` /group_channels/{channel_url}/messages/mark_as_read	5 requests per second

Error responses

For every rate-limited HTTP request, a status response, such as 200 OK success and 429 Too Many Requests, will return including the headers below.

Header	Type	Description
X-RateLimit-Limit	int	Indicates how many calls your application can make during the time specified in this header. For example, a value of `100;w=60` indicates that your application can make 100 calls in 60 seconds.
X-RateLimit-Remaining	int	Indicates how many remaining calls your application can make within the current time window. If the rate limit is exceeded, the `429 Too Many Requests` status response is returned with a value of 0.
X-RateLimit-Reset	float	Indicates the number of seconds that must be passed from the current time until the rate limit is reset.
X-RateLimit-RetryAfter	float	Indicates the number of seconds that must be passed from the current time until you are able to send a request again.

When a request is rate-limited, the following is returned in the response body.

HTTP 429 Rate Limited

X-RateLimit-Limit: 100;w=60
X-RateLimit-Remaining: 0
X-RateLimit-Reset: 1583170221.32
X-RateLimit-RetryAfter: 0.73

{"message": "Too many requests", "code": 500910, "error": true}

Note : See the Error codes page for more information.

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