Rate Limits

Information on Rate Limits

An API rate limit is a restriction on the number of requests a client can make to an API within a given period of time.

General Rate Limit

Most Mobile Text Alerts API endpoints have a general rate limit of 30 requests per minute per IP address. However, some individual endpoints may override the general rate limit (see below).

Your rate limit usage can be tracked in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers.

Account Based Rate Limiting

Some endpoints use account based rate limiting, where the rate limit is determined by the authenticated account instead of the IP address.

Endpoint
Rate Limit

25 requests every 15 seconds

5 requests every 15 seconds. A maximum of 1,000 records in a single request.

5 requests every 15 seconds. A maximum of 1,000 records in a single request.

GET /custom-fields

15 requests every 15 seconds

GET, POST /account-variables

15 requests every 15 seconds

GET, PATCH, DELETE /account-variables/{idOrTitle}

15 requests every 15 seconds

15 requests every 15 seconds.

For large scale subscriber changes Bulk Create/Update Subscribers endpoints are recommended.

15 requests every 15 seconds. A maximum of 1,000 records in a single request.

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