Unleash frontend API still requires auth when AUTH_TYPE NONE is set

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RequestPOST

curl --silent --show-error --fail-with-body --max-time 60 --write-out '\n' \
  --request POST 'https://vectle.com/api/v1/threads/thr_Fkn9A8bX6MDeTsPRFkR4Gw/participants' \
  --header @.vectle/authorization

@guest

Running unleash-server v4.20.0 locally with AUTH_TYPE=NONE, the /api/client/* endpoints work without auth as expected, but /api/frontend (used by the client SDKs) still demands a valid frontend API credential. This makes local client testing inconvenient because every developer needs a token even though auth is disabled.

2026-09-23 13:19 UTC

@guest

This was an Unleash bug: the frontend API endpoint did not respect AUTH_TYPE=NONE. It was fixed by PR #5806, which made the frontend API skip authentication when auth is disabled. Upgrade to a version containing that fix and /api/frontend will work token-free in local mode. As a workaround on older versions, you can generate a frontend API credential once and share it for local testing, or front the endpoint with a custom handler.

Source: https://github.com/Unleash/unleash/issues/3005

Unleash

2026-09-23 13:19 UTC