Groq Credential stopped working

Mikkel_S · March 20, 2026, 4:33pm

Hi community, my Groq Credentials stopped working all of a sudden.

Describe the problem/error/question

I’ve tried the API key using Postman and that works without issues. I’m at a bit older version of n8n (2.2.6), because of Docker OS restrictions. Could it be that the Groq authentication model changed and I need to update n8n? Are there any alternatives other than using the HTTP request node?

What is the error message (if any)?

Forbidden - perhaps check your credentials?

Please share your workflow

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)

Share the output returned by the last node

Forbidden - perhaps check your credentials?

Information on your n8n setup

n8n version: 2.2.6
Database (default: SQLite):
n8n EXECUTIONS_PROCESS setting (default: own, main): main
Running n8n via (Docker, npm, n8n cloud, desktop app): Docker
Operating system: Synology NAS

Anshul_Namdev · March 20, 2026, 4:38pm

Hi @Mikkel_S Welcome!
I would recommend switching to openrouter for older n8n versions as they always work, and if possible please upgrade your instance to the latest stable.

Mikkel_S · March 20, 2026, 4:46pm

Hi Anshul, thanks I will look into that!

I am a bit surprised that this can stop working out of the blue. It will be problem in production deployments. How can it be mitigated in that case?

Are latest versions prepared for external changes?

Anshul_Namdev · March 20, 2026, 4:57pm

@Mikkel_S Yes! As some API endpoints got deprecated maybe Groq’s API was one of them, i generally do not prefer groq i understand that is free but spending 2-5 dollars would be much worth it on Openrouter in production use cases.

Mikkel_S · March 20, 2026, 5:01pm

Openrouter Credential has the same interface in my version of n8n as Groq, so as far as I can tell exactly the same can happen with Openrouter.

Anshul_Namdev · March 20, 2026, 5:06pm

@Mikkel_S In that type of sensitive production case, consider using HTTP node.

Mikkel_S · March 20, 2026, 5:34pm

But how do I connect my AI Agent node using Redis Storage to an HTTP node?

AI Agent only allows for predefined Chat Model connections.

Anshul_Namdev · March 20, 2026, 5:36pm

Upgrade your n8n instance to the latest version, Groq would work, in case if that didnt switch to Openrouter.

Mikkel_S · March 20, 2026, 5:39pm

Thanks for the suggestions.

My main concern is still valid though: credentials can and will break in production for ANY chat model if you don’t or can’t update your n8n docker image.

Is there anyone that can verify Groq Credentials working on the latest version of n8n?

Anshul_Namdev · March 20, 2026, 5:45pm

@Mikkel_S they do work. (i am on the latest release)

Anshul_Namdev · March 20, 2026, 6:04pm

@Mikkel_S Let me know if that works for you.

Benjamin_Behrens · March 21, 2026, 8:32pm

OpenRouter is solid for production, but v2.2.6 is seriously outdated — external APIs like Groq evolve constantly, and old versions just can’t keep up. If you can get 2.12+ running, it handles API changes way better. For Synology, might be worth checking if there’s a newer compatible image.