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LangChain

Touchstone for LangChain

cv.touchstone/touchstone

Bitcoin-anchored, tamper-evident audit log for AI agents — record, disclose and verify actions.

client:LangChain transport:streamable-http runtime:npm

Install Touchstone in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "touchstone": {
            "transport": "streamable_http",
            "url": "https://touchstone.cv/mcp",
        }
})

tools = await client.get_tools()

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

Touchstone in other clients