# API explorer

Pick a resource or action, fill in the parameters and run it against built-in sample data, no API key required.

Everything below runs inside this page. Responses come from built-in sample data that mirrors the real gateway envelopes, so nothing is sent anywhere and no credentials are needed. Switch the credential dropdown to see the `401` and `403` shapes, or clear a required field to see the `400`.

> **Sample credentials only**: The key and client IDs here are fake. Copied snippets use `$AGENTIX_API_BASE` and `$AGENTIX_API_KEY` so you never paste a dummy key into real code, create a real key under Agency → Automations → API.