A self hosted Twitch API tester (the default is localhost:8081) to test various Twitch endpoints such as -> Kraken (v5) / Helix and known undocumented endpoints.
The Twitch API tester can be useful to test API responses as well as creating OAuth tokens with custom scopes using the authorization or implicit flow.
– create an app by going to the Twitch dev site and include the secret / clientID / redirect URL in the settings
– open port -> default 8081
– .NET framework 4.7+