> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nozlerouting.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Rate limits per API key and Retry-After header

> Per-key rate limits for the Nozle Routing API — 60/min on /v1/routes and 120/min on the other endpoints — plus 429 responses and the Retry-After header.

Per API key: 60/minute on `/v1/routes`, 120/minute on the other
two endpoints. Exceeding the limit returns 429 with a
`Retry-After` header.