Kit · Rate Limits

Kit Rate Limits

Rate limits for the Kit API. Specific numerical limits are not publicly documented.

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Limits

Default account
requests
undocumented
Concrete limits not published in public docs; check response headers.

Policies

Backoff Strategy
Honor Retry-After header and apply exponential backoff with jitter.
Bulk Endpoints
Use V4 bulk and async endpoints for high-volume subscriber/tag updates.

Sources