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LangChain

A2A Trust Plane for LangChain

io.github.the-825/a2a-trust-plane

Tenant-scoped control layer for agent-to-agent systems: governed routing, approvals, evidence.

client:LangChain transport:streamable-http

Install A2A Trust Plane in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "a2a-trust-plane": {
            "transport": "streamable_http",
            "url": "https://trust.the825.co/mcp",
        }
})

tools = await client.get_tools()

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

A2A Trust Plane in other clients