How do I install Mastyf?

Mastyf is a local plugin. Install it using npm package: @mastyf_ai/server and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Mastyf safe to use?

Mastyf was flagged by MCP Marketplace's security scan, scoring 4.2/10 (high risk). It has 7 high or critical findings to review. Review the security report on this page carefully before installing it.

What credentials does Mastyf need?

Mastyf requires the following credentials or environment variables: MASTYF_AI_DB_PATH, ALERT_WEBHOOK_URL, METRICS_ENABLED. You can find setup instructions on the server detail page.

What AI apps work with Mastyf?

Mastyf uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Mastyf MCP Server

by Mastyf Ai

Developer ToolsUse Caution4.2MCP RegistryLocal

Free

Server data from the Official MCP Registry

Runtime proxy for MCP security, cost governance & audit

About

Runtime proxy for MCP security, cost governance & audit

Security Report

4.2

Use Caution4.2High Risk

This is a security-focused MCP proxy/gateway server with comprehensive threat detection and policy enforcement capabilities. The codebase demonstrates strong security awareness with multi-layer defense, proper authentication infrastructure, and audit logging. However, several moderate-risk issues exist: unauthenticated API endpoints in production contexts, environment variable exposure via network calls in some paths, broad file system access for policy/artifact serving, and insufficient input validation in a few critical paths. The server's purpose—securing AI tool calls—is well-aligned with its permissions, but defensive measures should be hardened further. Supply chain analysis found 8 known vulnerabilities in dependencies (0 critical, 6 high severity). Package verification found 1 issue (1 critical, 0 high severity).

4 files analyzed · 16 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

env_vars

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

network_websocket

Check that this permission is expected for this type of plugin.

process_spawn

Check that this permission is expected for this type of plugin.

Unverified package source

We couldn't verify that the installable package matches the reviewed source code. Proceed with caution.

What You'll Need

Set these up before or after installing:

Path to SQLite history databaseOptional

Environment variable: MASTYF_AI_DB_PATH

Slack or Discord webhook for critical alertsRequired

Environment variable: ALERT_WEBHOOK_URL

Expose Prometheus metricsOptional

Environment variable: METRICS_ENABLED

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-mastyf-ai-mastyf-ai": {
      "env": {
        "METRICS_ENABLED": "your-metrics-enabled-here",
        "ALERT_WEBHOOK_URL": "your-alert-webhook-url-here",
        "MASTYF_AI_DB_PATH": "your-mastyf-ai-db-path-here"
      },
      "args": [
        "-y",
        "@mastyf-ai/server"
      ],
      "command": "npx"
    }
  }
}

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Mastyf MCP Server

About

Security Report

Findings (16)Action required

Permissions Required

What You'll Need

How to Install

Reviews

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