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mcp/harbor
LangChain

grantd for LangChain

io.github.rafavecchi/grantd

Grantd MCP server: let your AI agent act on a user's behalf across third-party APIs via OAuth.

client:LangChain transport:stdio runtime:npm

Install grantd in LangChain

pip install langchain-mcp-adapters 

from langchain_mcp_adapters.client import MultiServerMCPClient

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

tools = await client.get_tools()

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

grantd in other clients

grantd MCP server