GitLab Merge Request AI Code Reviewer
Automates code review for GitLab merge requests by analyzing diffs and providing AI-generated feedback using OpenAI GPT-4o-mini. Integrates GitLab API, n8n workflow, and LangChain for automated, high-quality code review comments.
Apps in this workflow
How it works
- Webhook1
- If2
- HTTP Request3
- Split Out4
- Code5
- LLM Chain6
- OpenAI Chat Model7
The building blocks this workflow uses, in the order data flows through them.
What you'll need
- An n8n instance (self-hosted or n8n Cloud).
- An API key for OpenAI in n8n: the workflow calls the model each time it runs.
Gydmation shows step-by-step credential setup for each app, so your keys go straight into n8n and never to Gydmation.
Make it yours in plain English
Open the template in Gydmation and describe the change. It edits the workflow, checks it against real n8n node schemas, and deploys it to your n8n. For example:
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