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err:unkey:data:ratelimit_namespace_not_found
The namespace you referenced doesn’t exist in your workspace. You get HTTP 404.
Example response

Likely causes

  • You set an override before the namespace existed. Namespaces are created the first time you call ratelimit.limit or ratelimit.multiLimit with a new name. The override endpoints (ratelimit.setOverride, ratelimit.getOverride, ratelimit.listOverrides, ratelimit.deleteOverride) don’t create them.
  • The name has a typo. Names are matched exactly.
  • The namespace was deleted. ratelimit.setOverride returns this 404 for it, while ratelimit.limit returns err:unkey:data:ratelimit_namespace_gone.

How to fix

  1. Call ratelimit.limit with the namespace once to create it, then set overrides.
  2. Check the spelling. If you pass an ID, use the rlns_ ID from the dashboard.
Last modified on October 6, 2026