The Client-ID header is invalid for gql.twitch.tv

[BarryCarlyon]

see also

Is it legal to use https://gql.twitch.tv/gql endpoint

You could get blocked from using it. Face higher sanctions, since most of GQL doesn’t work with a normal oAuth token. Risk of functionality as undocumented endpoints can and will change at any point. Also additionally to figure out how GQL operates you technically broke the developer TOS by reverse engineering the Twitch Website to determine how the calls work and are made. Main TOS: Section 9 vii https://www.twitch.tv/p/en-gb/legal/terms-of-service/ vii. reverse engineer, decompile, disa…

GQL is an undocumented endpoint and not intended for third party use