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mcp/harbor
LangChain

passport for LangChain

com.scopeblind/passport

Portable cryptographic identity for AI agents. Ed25519 keypairs and signed manifests.

client:LangChain transport:stdio runtime:npm

Install passport in LangChain

pip install langchain-mcp-adapters 

from langchain_mcp_adapters.client import MultiServerMCPClient

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

tools = await client.get_tools()

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

passport in other clients

passport MCP server