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mcp/harbor
LangChain

WebPerf Snippets for LangChain

io.github.nucliweb/webperf-snippets

Measure Core Web Vitals and debug web performance with 56 snippets in a headless Chromium

client:LangChain transport:stdio runtime:npm

Install WebPerf Snippets in LangChain

pip install langchain-mcp-adapters 

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "webperf-snippets": {
            "transport": "stdio",
            "command": "npx",
            "args": ["-y", "webperf-snippets"],
        }
})

tools = await client.get_tools()

get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs

WebPerf Snippets in other clients

WebPerf Snippets MCP server