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Japan Data MCP for LangChain

io.github.mameta29/japan-data-mcp

30 tools for Japanese data: address, furigana, transit, Diet, holidays, weather, corporate registry

client:LangChain transport:stdio runtime:npm

Install Japan Data MCP in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "japan-data-mcp": {
            "transport": "stdio",
            "command": "npx",
            "args": ["-y", "@mameta/japan-data-mcp"],
        }
})

tools = await client.get_tools()

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

Japan Data MCP in other clients