# API access denied with student licence

**URL:** <https://community.dlubal.com/t/api-access-denied-with-student-licence/5587>\
**Category:** API & Interfaces\
**Tags:** licence, dlubal-api, students\
**Created:** [November 5, 2026, 7:54am UTC](https://community.dlubal.com/t/api-access-denied-with-student-licence/5587 "2026-11-05T07:54:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![up198701707](https://community.dlubal.com/letter_avatar_proxy/v4/letter/u/e47774/32.png) [@up198701707](https://community.dlubal.com/u/up198701707)\
**Post date:** [November 5, 2026, 7:54am UTC](https://community.dlubal.com/t/api-access-denied-with-student-licence/5587/1 "2026-11-05T07:54:07Z")

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I have a student licence for RFEM 6 and I am trying to use the Dlubal API II from Python.\*

What I have already checked: the Python client `dlubal.api` 2.16.5 is installed; in RFEM, Options → Program Options → API Service & Webservice, the option "Dlubal API | gRPC" is enabled and SSL is disabled; the gRPC server port is 9000 (both initial and used); I created an API key in the Extranet (My API Keys), it is saved and marked Active; RFEM was restarted after creating the key.\*

Every connection attempt fails with: `gRPC connection check failed (UNAUTHENTICATED) for '127.0.0.1:9000'. Original gRPC details: The API key is either missing or invalid. Access to the API is denied.`\*

Could you please enable the API Service for my account? User ID 379072, Company ID 218199.

Thank you.

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**Author:** ![stefan.hoffmann](https://community.dlubal.com/user_avatar/community.dlubal.com/stefan.hoffmann/32/108_2.png) [@stefan.hoffmann](https://community.dlubal.com/u/stefan.hoffmann)\
**Post date:** [November 5, 2026, 9:18am UTC](https://community.dlubal.com/t/api-access-denied-with-student-licence/5587/3 "2026-11-05T09:18:41Z")

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Hi up198701707,

the free API plan can take a few minutes to activate. It should be working for you now.

Best regards,  
Stefan Hoffmann