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Introducing: Telnyx Local MCP Server

22, Apr 2025

Today, we’re launching the Telnyx Local MCP Server, giving developers the ability to run Telnyx tools directly on their machines. This server brings our telephony, messaging, and AI assistant capabilities to any local environment, with full support for MCP-compatible clients like Claude Desktop and Cursor.

The Local MCP Server is designed to give you fast, flexible, and secure access to the Telnyx ecosystem with no cloud required.

Key benefits:

The MCP Server makes it easier to build, test, and manage communications features with local-first tooling.

  • Run everything locally: Interact with Telnyx’s voice, messaging, phone number, and assistant APIs directly from your machine.
  • Use your preferred tools: Fully compatible with Claude Desktop, Cursor, and any other MCP client.
  • Own your dev environment: No need for a remote server or internet connectivity—just clone the rep and start building.

Available tools include:

  • AI assistant management: Create, update, and delete assistants with full configuration access.
  • Call Control: Make, transfer, or hang up calls, play audio, and use text-to-speech.
  • Messaging: Send SMS and MMS.
  • Phone Number management: Search, buy, and configure numbers.
  • Connection control: List and manage voice connections.

Why it matters

Developers building voice- and messaging-engabled applications need full control over their environments especially when working with local models, context-specific workflows, or sensitive data. This release unlocks that flexibility, enabling low-latency testing and powerful local integrations without compromising on capability.

Whether you’re building custom workflows, prototyping AI agents, or scaling automations, Telnyx’s Local MCP Server helps you iterate faster, experiment safely, and connect seamlessly.

Getting started

  1. Get your API key from the Telnyx Mission Control Portal.
  2. Install uvx (Python package manager): `curl -LsSf https://astral.sh/uv/install.sh | sh , brew install uv or see the uv `repo for additional install methods.
  3. Clone the repo: git clone https://github.com/team-telnyx/telnyx-mcp-server.git .
  4. Configure Claude Desktop (or any MCP client) to run the server locally.
  5. Start building, testing, and deploying from your own machine.

Explore the full repo and documentation here.


We’re actively seeking beta testers. Try it out and help shape what’s next!