# I have a question about zkLogin.

**URL:** <https://forums.sui.io/t/i-have-a-question-about-zklogin/49072>\
**Category:** Technical Support\
**Tags:** zklogin\
**Created:** [September 9, 2025, 1:20am UTC](https://forums.sui.io/t/i-have-a-question-about-zklogin/49072 "2025-09-09T01:20:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![realwater87](https://avatars.discourse-cdn.com/v4/letter/r/c89c15/32.png) [@realwater87](https://forums.sui.io/u/realwater87)\
**Post date:** [September 9, 2025, 1:20am UTC](https://forums.sui.io/t/i-have-a-question-about-zklogin/49072/1 "2025-09-09T01:20:32Z")

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Is there a separate authorization process required to use the zkLogin prover operational environment endpoint? prover-dev is functioning normally, but when calling the same parameters, the operational endpoint returns a 400 error.