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LangChain

Heimdall for LangChain

io.github.erayendes/asc-mcp

Every App Store Connect + StoreKit 2 endpoint. 890 tools in 13 profiles, narrow to 27.

client:LangChain transport:stdio runtime:npm

Install Heimdall in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

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

tools = await client.get_tools()

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

Heimdall in other clients