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LangChain

Stackin for LangChain

io.github.stackin-io/stackin

Issue and manage Brazilian fiscal documents: NF-e for goods, NFS-e for services.

client:LangChain transport:streamable-http tools:16

Install Stackin in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "stackin": {
            "transport": "streamable_http",
            "url": "https://mcp.stackin.io/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

Stackin in other clients