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mcp/harbor
LangChain

sigma gate for LangChain

io.github.spektre-labs/sigma-gate

Deterministic trust gate for AI output: leaked-secret, prompt-injection & PII in one call.

client:LangChain transport:streamable-http

Install sigma gate in LangChain

pip install langchain-mcp-adapters 

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "sigma-gate": {
            "transport": "streamable_http",
            "url": "https://sigma-gate-864996675261.us-central1.run.app/mcp",
        }
})

tools = await client.get_tools()

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

sigma gate in other clients

sigma gate MCP server