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Telnyx

Official registry Other

MCP server for the Telnyx API — billing, phone numbers, and messaging

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

PYPI package telnyx-mcp
Claude Code 
claude mcp add telnyx -e 'TELNYX_API_KEY=<your telnyx_api_key>' -- uvx telnyx-mcp==0.1.1
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "telnyx": {
            "command": "uvx",
            "args": [
                "telnyx-mcp==0.1.1"
            ],
            "env": {
                "TELNYX_API_KEY": "<your telnyx_api_key>"
            }
        }
    }
}

Environment variables

  • TELNYX_API_KEY required secret Telnyx API key for authentication

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. telnyx-mcp
  2. Tools
  3. Installation
  4. License

telnyx-mcp

MCP server for the Telnyx API — billing, phone numbers, and messaging.

Tools

Billing
  • get_balance — Account balance, pending charges, credit limit
  • list_invoices — List all invoices
  • get_invoice — Get a specific invoice
  • get_charges_breakdown — Charges breakdown for a date range (max 60 days)
  • get_charges_summary — Charges summary for a date range
Phone Numbers
  • list_phone_numbers — List all phone numbers on the account
  • get_phone_number — Get details of a specific phone number
  • search_available_numbers — Search available numbers to purchase
  • order_phone_number — Order/purchase a phone number
Messaging
  • send_message — Send an SMS message
  • list_messages — List sent and received messages
  • list_messaging_profiles — List messaging profiles

Installation

uvx telnyx-mcp
Claude Code
{
  "mcpServers": {
    "telnyx": {
      "command": "uvx",
      "args": ["telnyx-mcp"],
      "env": {
        "TELNYX_API_KEY": "<your-api-key>"
      }
    }
  }
}

Get your API key from portal.telnyx.com.

License

MIT

Frequently asked questions

What is Telnyx?

MCP server for the Telnyx API — billing, phone numbers, and messaging

How do I install Telnyx?

It runs on your machine. In Claude Code: claude mcp add telnyx -e 'TELNYX_API_KEY=<your telnyx_api_key>' -- uvx telnyx-mcp==0.1.1. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Telnyx need an API key?

Yes. It expects TELNYX_API_KEY, which you set in its configuration.

Is Telnyx open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Telnyx?

It is published by stucchi. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.