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LMSA can use LM Studio’s MCP integrations so the model can call supported tools during chat. You add those integrations in LMSA, and the app sends them to LM Studio in the format LM Studio expects.
1

Open MCP settings

Open LMSA Settings. Stay on Local Server and tap the MCP button.
2

Add integrations

Add one or more integrations, then tap Done to save them. The MCP builder in LMSA creates the integrations JSON for you, so you usually do not need to type JSON manually.
3

Chat with tools enabled

Once at least one MCP integration is saved, LMSA uses LM Studio’s native MCP chat flow automatically. If the model decides to use a tool, LMSA will show a tool-use summary in the response.

Integration types

You can choose between two types of integrations:

Allowed tools

The Allowed Tools field is optional. Leave it empty to allow every tool from that integration, or add specific tool names to limit what the model can call.

Important notes

  • Your normal LM Studio server connection still needs to work first before MCP integrations can be used
  • You do not put MCP server URLs in the Hostname / IP field. Keep that field for the LM Studio server running on your computer
  • If a tool-enabled request behaves strangely, double-check the server URL or plugin ID, and make sure the target integration is available in LM Studio