# Can't get apitester working

**URL:** <https://forum.mautic.org/t/cant-get-apitester-working/17388>\
**Category:** Product Support\
**Created:** [December 13, 2020, 12:16pm UTC](https://forum.mautic.org/t/cant-get-apitester-working/17388 "2020-12-13T12:16:56Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![imog](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/imog/32/3813_2.png) [@imog](https://forum.mautic.org/u/imog)\
**Post date:** [December 13, 2020, 12:16pm UTC](https://forum.mautic.org/t/cant-get-apitester-working/17388/1 "2020-12-13T12:16:56Z")

</div>

**Your software**  
My Mautic version is:v3.2.1  
My PHP version is: 7.3.19-1~deb10u1  
My Database type and version is: MariaDB 10.3.27

**Your problem**  
I installed api-tester from github ([https://github.com/mautic/api-library/blob/6a821deadd94c5917f2781fa170467079b050d6f/apitester/index.php](https://github.com/mautic/api-library/blob/6a821deadd94c5917f2781fa170467079b050d6f/apitester/index.php)) doing download and unzip method (put all files from repo into /lib folder. When i try to access the tester by [https://mautic.mydomain.com/api/apitester/](https://mautic.mydomain.com/api/apitester/) i get this JSON error response in my browser:  
{“errors”:[{“message”:“API authorization denied.”,“code”:401,“type”:“access\_denied”}]}  
So i guess, even for the tester i need to provide some credentials. I turned basic auth on (for testing) but still no login dialog appears. Maybe there are some URL-params needed to use this?

These errors are showing in the log:

Steps I have tried to fix the problem:  
clearing the cache