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Gachi Data API — Japan Station & Accessibility Data for LangChain

com.gachi-tokusuru/japan-data-api

Deep, obscure Japanese station, accessibility & hazard data for AI agents. English-first.

client:LangChain transport:streamable-http tools:10

Install Gachi Data API — Japan Station & Accessibility Data in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "japan-data-api": {
            "transport": "streamable_http",
            "url": "https://api.gachi-tokusuru.com/mcp",
        }
})

tools = await client.get_tools()

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

What LangChain can do once it is connected

Gachi Data API — Japan Station & Accessibility Data in other clients