Short answer: You can list guilds in Discord by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the Discord List Guilds action to a workflow, map its 0 inputs from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.
{}
[{"id": "123456789","icon": "abc123","name": "My Server","owner": false}]
Use these fields in downstream nodes for routing, logging, or error handling.
Any of these apps can fire this action as part of a workflow.