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Credit goes to docs.ollama.com

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Install

Install n8n.

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Using Ollama Locally

  1. In the top right corner, click the dropdown and select Create Credential
Create a n8n Credential
  1. Under Add new credential select Ollama
Select Ollama under Credential
  1. Confirm Base URL is set to http://localhost:11434 if running locally or http://host.docker.internal:11434 if running through docker and click Save
In environments that don’t use Docker Desktop (ie, Linux server installations), host.docker.internal is not automatically added.Run n8n in docker with --add-host=host.docker.internal:host-gatewayor add the following to a docker compose file:
extra_hosts:
  - "host.docker.internal:host-gateway"
You should see a Connection tested successfully message.
  1. When creating a new workflow, select Add a first step and select an Ollama node
Add a first step with Ollama node
  1. Select your model of choice (e.g. qwen3-coder)
Set up Ollama credentials

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Connecting to ollama.com

  1. Create an API key on ollama.com.
  2. In n8n, click Create Credential and select Ollama
  3. Set the API URL to https://ollama.com
  4. Enter your API Key and click Save