How to install Langfuse MCP in Antigravity CLI
To install Langfuse MCP in Antigravity CLI, add the "langfuse-mcp" block to the mcpServers section of ~/.gemini/config/mcp_config.json (remote servers use "serverUrl"), then start agy.
Built from the published package · server updated 4 months ago
- 1
Open the MCP config
Create or open ~/.gemini/config/mcp_config.json for every project, or .agents/mcp_config.json for this project only.
- 2
Add the server
Paste this. If the file already has servers, add the "langfuse-mcp" entry inside the existing mcpServers block.
{ "mcpServers": { "langfuse-mcp": { "command": "npx", "args": [ "-y", "langfuse-mcp" ] } } } - 3
Start Antigravity CLI
Run agy. The server and its tools load when the session starts.
Config file: ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project)
MCP servers run with your permissions. If Langfuse MCP needs an API key, add it under env in the config. Check its README.
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Questions
Does Langfuse MCP work in Antigravity CLI?
Yes. Antigravity CLI supports local and remote mcp servers, skills, plugins, and Langfuse MCP installs with the steps above.
Langfuse MCP does not show up in Antigravity CLI. What now?
Restart Antigravity CLI fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.
Is Langfuse MCP safe?
It scores 62 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.
