Agent Scripting API 503 during JMeter stress test

Just noticed that the scripting endpoint fails under load.

  • Genesys Cloud US1
  • JMeter 5.6
  • 200 concurrent threads
  • Endpoint: /api/v2/interaction/agent-scripting

The service account returns HTTP 503 Service Unavailable after 10 seconds. Is there a specific rate limit for this API?