@mastyf_ai/langchain-middleware

@mastyf_ai/langchain-middleware

LangChain middleware adapter for mastyf.ai — the open-source MCP runtime security proxy.

Intercept and enforce security policy on every tool call made by LangChain agents.

Install

npm install @mastyf_ai/langchain-middleware

Usage

import { MastyfLangChainMiddleware } from '@mastyf_ai/langchain-middleware';

const middleware = new MastyfLangChainMiddleware({
  policyPath: './policy.yaml',
});

// Wrap your LangChain agent
const agent = middleware.wrap(myAgent);

Related

• mastyf.ai — Main project
• Cloud dashboard — Policy editor and fleet management
• Python SDK