Request contains an invalid argument

[rawinkler]

• I confirm that I have read the FAQ

Bug description

Since last Friday, August 29th 2025, suddenly my code stopped working. I use ytmusicapi version 1.11.0.
I get the error:

File "/usr/local/lib/python3.13/site-packages/ytmusicapi/mixins/search.py", line 182, in search
response = self._send_request(endpoint, body)
File "/usr/local/lib/python3.13/site-packages/ytmusicapi/ytmusic.py", line 241, in _send_request
raise YTMusicServerError(message + error)
ytmusicapi.exceptions.YTMusicServerError: Server returned HTTP 400: Bad Request.
Request contains an invalid argument.

To Reproduce

Minimal example:

YT_CLIENT = \
    YTMusic("/usr/src/app/oauth.json", 
            oauth_credentials=OAuthCredentials(
                client_id=environ["GOOGLE_YOUTUBE_API_CLIENT_ID"],
                client_secret=environ["GOOGLE_YOUTUBE_API_CLIENT_SECRET"]
            )
    )

search_results = YT_CLIENT.search('Oasis Wonderwall')

Is it possible that YouTube changed something that causes ytmusicapi to break?

Thanks for any help!

[sigma67]

Check your credentials

[Goldenfreddy0703]

Mmmm i see, ok im going to be testing with IOS_MUSIC clients cause reason why is cause TVHTML5_SIMPLY_EMBEDDED_PLAYER does not support Oath so are best bet is to go with IOS_MUSIC, the only downside is that the response data may be different sense its using a mobile format or functionality so im looking into that right now.

[Aetrocles]

Any updates on this? Is there something I can do on my side to get this to work or do I need to wait for Sigma to rollout an update?

I spend most my time making a music management app and am hesitant to dig into this source code. I'm a C#/.net guy.

[Goldenfreddy0703]

Any updates on this? Is there something I can do on my side to get this to work or do I need to wait for Sigma to rollout an update?

You may have to wait for Sigma to rollout an update sadly. I want to get this api working again cause I have a ytmusic kodi addon. Hopefully once I'm available again in the next two weeks. I can look into this more.

[fischcode]

Realized that my previous test was flawed as the actual client used was sometimes modified in the ytmusic code.
Using @Goldenfreddy0703's test code above for a repeat test, I found only TVHTML5_SIMPLY_EMBEDDED_PLAYER yielded OK responses today, while all other clients from 'Test Code to Verify' failed.

[sigma67]

@fischcode I'm very confused. A month ago you noted that TVHTML5_SIMPLY_EMBEDDED_PLAYER does not work at all for you.

I tried it locally, to no success unfortunately.