Rate Limits

Limits

Resource	Limit
API requests	200 per minute per account
Monitor creation (POST /api/v1/monitors)	20 per minute per account (independent cap)
Webhook deliveries	Not counted against your API limit

The two caps are independent — either can 429 a POST /api/v1/monitors request.

Response headers

Every API response includes rate limit headers:

X-RateLimit-Limit: 200
X-RateLimit-Remaining: 187
X-RateLimit-Reset: 1681310460

429 responses

When you exceed the limit, you’ll receive a 429 Too Many Requests response with a Retry-After header. The body uses the same flat envelope as all /api/v1/* errors (see /docs/errors/):

{"error": "account rate limit exceeded; retry in 1s"}

Monitor-creation requests that hit the independent 20/min cap return the same shape with "monitor creation rate limit exceeded; retry in <N>s".

Retry-After: 12

Respect the Retry-After value. Repeated violations may result in longer cooldown periods.