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Integration: Lunos with n8n

You can connect Lunos (or another OpenAI-compatible API) to n8n and chain AI steps with hundreds of other services. Point the OpenAI credentials at the Lunos base URL and use normal OpenAI or chat nodes.

Prerequisites

  • n8n instance (cloud or self-hosted)
  • Lunos API key
  • Model ID available in your account

Setup

  1. Create OpenAI credentials in n8n.
    • Open Credentials from the left sidebar.
    • Click Create credential and choose OpenAI.
    • Give it a clear name such as Lunos OpenAI. Open OpenAI account modal

    Credentials creation form in n8n.

  2. Set Base URL to https://api.lunos.tech/v1 or your own deployment URL.
    • In the same credential form, locate the Base URL field.
    • Replace the default value with the Lunos endpoint.
    • Keep the trailing /v1 to match OpenAI-compatible routing. Set base URL

    Base URL set to the Lunos endpoint.

  3. Set API key with your Lunos key.
    • Copy your API key from your Lunos dashboard.
    • Paste it into the credential API key field.
    • Save credentials and run a quick test if the node supports it. Set API key

    API key field filled (key hidden).

  4. Add an OpenAI or OpenRouter node in your workflow.
    • Open your workflow canvas and click Add node.
    • Select OpenAI or OpenRouter based on your n8n version.
    • Attach the node to your existing trigger or previous step. Select OpenAI node

    AI node selected and connected in workflow canvas.

  5. Set model to your target model ID, for example openai/gpt-4o.
    • In node parameters, choose the credential created earlier.
    • Fill the model field with a valid Lunos model ID.
    • Run the node once and confirm the output is returned successfully. Select AI model

    Model field configured with a Lunos model ID.

Dynamic model routing

Use n8n expressions so the model can be selected per execution. This keeps one workflow reusable across quality, latency, or pricing targets.

Compatibility notes

  • Older n8n versions can use OpenAI node with custom base URL.
  • Newer n8n versions may also provide an OpenRouter-specific node.
  • Tool calling and multimodal support depend on the selected model.

Security

Store Lunos credentials in n8n credential storage and avoid embedding API keys in exported workflow JSON.