Rate Limits

Every API key is rate limited on a daily window. The limit is set by the key's tier and resets at 00:00 UTC.

Tiers

Tier	Requests / day	Intended for
Free	100	Evaluation and prototyping
Developer	10,000	Production apps for small teams
Enterprise	Unlimited	High-volume, custom SLAs

New keys start on the Free tier. Billing can raise a key's tier or set a custom limit.

Response headers

Every authenticated response includes your current rate-limit state:

Header	Description
X-RateLimit-Limit	Max requests allowed in the window (or "unlimited").
X-RateLimit-Remaining	Requests remaining before you hit the limit.
X-RateLimit-Reset	Unix epoch (seconds) when the window resets (next 00:00 UTC).

Exceeding the limit

Once you exceed your daily limit, requests return 429 with the standard error envelope until the window resets:

HTTP/1.1 429 Too Many Requests
X-RateLimit-Limit: 100
X-RateLimit-Remaining: 0
X-RateLimit-Reset: 1753747200

{
  "success": false,
  "error": {
    "code": "TOO_MANY_REQUESTS",
    "message": "Rate limit exceeded: 100 requests/day (free tier). Resets at 2026-07-29T00:00:00.000Z."
  }
}

Watch X-RateLimit-Remaining to back off before you hit 429, and retry after the time in X-RateLimit-Reset.