LLM Preflight
Local, cross-provider preflight checks for LLM integration changes.
Install
Run one of the commands below, then add the client config underneath.
Pythonuvx llm-preflight
Client configuration
Paste into Claude Desktop, Cursor (mcp.json), VS Code or any MCP client, then restart the client.
mcpServers{
"mcpServers": {
"llm-preflight": {
"command": "uvx",
"args": [
"llm-preflight"
]
}
}
}
About this server
LLM Preflight is listed in the AI & ML category of the MCPNav directory. It is distributed as Python and can be loaded by any client that speaks the Model Context Protocol.
Typical uses include giving your assistant scoped access to the corresponding service so it can answer questions and take actions with real data instead of guessing. Always review what a server can access before you enable it — see our MCP security guide.
Frequently asked questions
What is the LLM Preflight MCP server?
LLM Preflight is an MCP server by feronovak. Local, cross-provider preflight checks for LLM integration changes.
How do I install LLM Preflight?
Install it with: uvx llm-preflight. Then add the JSON config to your client's MCP settings and restart the client.
Is LLM Preflight free to use?
The MCP server itself is free to install. The source is public on https://github.com/feronovak/llm-preflight. Any third-party API it calls (such as a search or maps API) may require its own key and billing.
Which clients support LLM Preflight?
Any MCP-compatible client can use it, including Claude Desktop, Cursor, VS Code, Windsurf and custom agents.
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