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mcp/harbor
LangChain

regex lab for LangChain

io.github.ryudi84/regex-lab

MCP server for regex testing, matching, replacing, and validation

client:LangChain transport:stdio runtime:npm

Install regex lab in LangChain

pip install langchain-mcp-adapters 

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "regex-lab": {
            "transport": "stdio",
            "command": "npx",
            "args": ["-y", "regex-lab-mcp"],
        }
})

tools = await client.get_tools()

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

regex lab in other clients

regex lab MCP server