Usage & Rate Limits

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Default Rate Limits

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Rate Limit Categories

• Sending Burst: Applies to high-frequency email dispatching endpoints including POST /emails, POST /emails/batch, and POST /campaigns/:id/send.
• Read / List Endpoints: Applies to all retrieval operations (GET /*).
• Other Mutations: Applies to resource creation, updates, and deletions (POST, PATCH, DELETE).

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Response Headers

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Rate Limit Exceeded Response

HTTP/1.1 429 Too Many Requests
Content-Type: application/json
Retry-After: 1
X-RateLimit-Limit: 5
X-RateLimit-Remaining: 0
X-RateLimit-Reset: 1726050001

{
  "statusCode": 429,
  "name": "too_many_requests",
  "message": "Rate limit exceeded. Please try again in 1 second.",
  "retryAfter": 1
}