Simple Oauth2 Client

With this extension, you can get an access token without prepare an application or server to catch for OAuth2 redirection.

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Usage
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1. Click the extension icon to open the Side Panel (or open DevTools and select the "Simple OAuth2 Client" tab)
2. Fill in each config section — or let AI Assist auto-detect values from the page
3. Copy the redirect_uri from the Client Config section and register it in your OAuth2 app settings
4. Click "Start Auth"

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How it works
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1. By clicking StartAuth button, the extension open authorization url with required params.
2. You will be asked to sign-in to that platform and to allow access to scopes you input.
3. Then Chrome accesses "redirect_uri" but not really open. By using launchWebAuthFlow API in Chrome your redirect securely catch by chrome themselves.
4. The extension get authorization code and exchange it to access token and show it to you!

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Supported Features
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- Specify any url for authorization and token endpoint
- Public and confidential client
- PKCE(S256 and plain) and non-PKCE request
- Authorization Header and Body Parameter for token request authorization
- AI Assist: automatically detects OAuth settings (client ID, scopes, endpoints) from the current page using Chrome's built-in AI