# Rate Limits per Endpoint and Rate-Limit Headers

Rate limits apply per API key and per endpoint, default to 1 request per second, and responses report them in ratelimit headers.

Source: https://docs.deepinfo.com/changelog/rate-limits/

Last updated: 2026-09-24

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Date: 2026-09-23 · Tags: API, Docs

Rate limits depend on your plan and apply **per API key and per endpoint**. Unless your plan says
otherwise, the default is **1 request per second**.

Responses tell you where you stand. For the current window:

- `ratelimit-limit`
- `ratelimit-remaining`
- `ratelimit-reset`

For each window configured on your plan:

- `x-ratelimit-limit-second`
- `x-ratelimit-limit-minute`
- `x-ratelimit-limit-hour`
- `x-ratelimit-remaining-second`
- `x-ratelimit-remaining-minute`
- `x-ratelimit-remaining-hour`

Over the limit, the API returns **429 Too Many Requests**. Wait `ratelimit-reset` seconds before you
retry. Some endpoints, such as lookups, also count against a quota on your plan: one unit per request.

See [Rate limits](/getting-started/rate-limits/) and the
[429 example](/getting-started/errors/#429-rate-limit-exceeded).