minibridge

Overview

Minibridge acts as a secure bridge between MCP servers and clients, providing TLS encryption, tool integrity checks, and optional policy enforcement through Rego or HTTP policers. It offers comprehensive security features including user authentication, content analysis, secret redaction, and PII detection. The solution integrates with OpenTelemetry for monitoring and provides Prometheus metrics. Minibridge can be deployed in an all-in-one mode for simplicity or configured for more complex deployments with separate frontend and backend components.

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Installation

brew tap acuvity/tap
brew install minibridge

yay -S minibridge

go install go.acuvity.ai/minibridge@latest

{
  "mcpServers": {
    "fetch": {
      "command": "minibridge",
      "args": ["aio", "--", "uvx", "mcp-server-fetch"]
    }
  }
}

FAQ

What is Minibridge?

Minibridge is a backend-to-frontend bridge that securely exposes MCP servers to the internet with optional policy enforcement, authentication, and monitoring capabilities.

How does Minibridge enhance MCP security?

Minibridge provides TLS encryption, tool integrity checks, SBOM generation, user authentication, content filtering, and PII detection to ensure the security and integrity of MCP servers.

Can Minibridge work with existing MCP servers?

Yes, Minibridge acts as a wrapper around existing MCP servers and can be configured as a replacement in MCP client configurations with minimal changes.

On Hacker News

Recent discussion from the developer community.

• Minibridge: Secure and deploy MCP Servers to prod▲ 4
  Story by primalmotion · 2025-04-18

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