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Custom Endpoint lets you connect LMSA to any OpenAI-compatible API. This can be a self-hosted server running on your own machine or network, or a third-party cloud service that uses the OpenAI API format.
1

Open the Custom Endpoint configuration

On the home screen, tap the Cloud tab. Select the Custom Endpoint card and tap Configure.
2

Enter the server details

  • Base URL: The URL of your OpenAI-compatible server (for example, http://192.168.1.10:8080 or a cloud API base URL)
  • API Key: Enter an API key if your server requires one. Leave it blank if not
  • Model Name: Optionally enter a model name if you want to specify one manually
3

Save and confirm

Tap Save, then tap Confirm on the home screen to activate the connection.
4

Select a model

If your server exposes a /models endpoint, LMSA fetches the available models automatically. Open the Models menu from the sidebar to browse and select one.If your server does not expose a model list, enter the model name directly in the Manual Model Name field during configuration and LMSA will use that name in every request.

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Things to know

  • OpenAI-compatible format required: The server must implement the /chat/completions endpoint in the OpenAI API format
  • Mutually exclusive: Enabling Custom Endpoint disables OpenRouter and Ollama, and vice versa
  • Context Length and Max Output Tokens: Both settings apply when Custom Endpoint is active

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Privacy note

Whether your messages stay private depends on where the server is hosted:
  • Self-hosted on your local network: Traffic stays on your network, similar to LM Studio or Ollama. The connection is not encrypted unless your server is configured for HTTPS.
  • Third-party cloud endpoint: Your prompts and responses are sent over the internet to that provider’s servers. HTTPS encrypts the connection in transit, but the provider receives and processes your messages in plain text. Review that provider’s privacy policy before use.