Claude MCP Approval Server MCP Server

Claude MCP Approval Server MCP server exists for a simple reason — assistants are far more useful when they can act on Claude MCP Approval Server directly instead of describing what you should do. MCP server with Whatsapp integration (Twilio) to remote approve Claude Code tool use.

What you get

A Model Context Protocol (MCP) server that provides approval prompts via WhatsApp before executing potentially sensitive commands. Built with FastMCP and Twilio.

• 🔐 Permission Prompts: Intercepts tool executions and requests approval via WhatsApp
• 📱 WhatsApp Integration: Uses Twilio to send approval requests with quick-reply buttons
• ⚡ FastMCP: Built on FastMCP for easy integration with Claude
• 🎯 Smart Formatting: Formats commands and reasons in a readable way
• ⏱️ Auto-expiry: Requests expire after 5 minutes for security
• 💾 Database Tracking: SQLite database to track approval requests

Configuration and credentials

You will need one environment variable: TWILIO_AUTH_TOKEN. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

Setting it up

Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client.

Choosing this one

Plenty of database access servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. It is maintained by adstastic; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Before you rely on it

• It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
• Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
• MCP clients confirm each tool call by default. Leave that on until you have watched what the claude mcp approval server mcp server does with a few real requests.