hi, the ai agent node won’t run without valid ai credentials make sure you’ve set your openai api key env var (e.g. OPENAI_API_KEY), created an ai agent credential in n8n, and fully redeployed/restarted your containers so the node can pick them up. without those creds the workflow can’t execute.

That does not seem to solve the problem. I am using Claude via OpenRouter. I checked my key they are correct and the same AI Agent node is working fine in other workflow as well. It seems to be specific to this workflow.

if the same ai agent node works in other workflows, it’s likely an issue inside this specific workflow maybe a missing input, invalid node config, or broken execution path. try duplicating the workflow and removing nodes step by step to isolate the failure. also check the execution logs for this run to see exactly which node fails and with what error. sometimes even a small input mismatch can silently break the flow.

If u look closely at the screenshot - the same workflow works until I just drop an AI Agent node (that is not even connected as part of the workflow) - and the error appears. I am confident this is a bug in n8n right now?

This is the error I'm getting as I run the workflow with the AI agent node just being in the workflow environment (but not connected to the workflow itself)

Any help on this please?