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LangChain

Phantom Secrets for LangChain

io.github.ashlrai/phantom-secrets-mcp

Stop AI coding agents from leaking API keys. Local proxy swaps real secrets for phm_ tokens.

client:LangChain transport:stdio runtime:npm

Install Phantom Secrets in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

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

tools = await client.get_tools()

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

Phantom Secrets in other clients