StackMCP

Set up Twilio MCP in Claude Code

Access Twilio communication APIs to send SMS, manage phone numbers, and interact with 1,400+ Twilio API endpoints from your AI editor.

1

Locate the config file

Claude Code reads MCP server configuration from the following file:

~/.claude.json

Create this file if it does not already exist.

2

Add the configuration

You can configure Twilio MCP using the CLI command or by editing the config file directly.

Option A: CLI command

bash
claude mcp add twilio-mcp -e TWILIO_ACCOUNT_SID=YOUR_TWILIO_ACCOUNT_SID -e TWILIO_API_KEY=YOUR_TWILIO_API_KEY -e TWILIO_API_SECRET=YOUR_TWILIO_API_SECRET -- npx -y @twilio-alpha/mcp

Option B: Config file

json
{
  "mcpServers": {
    "twilio-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@twilio-alpha/mcp"
      ],
      "env": {
        "TWILIO_ACCOUNT_SID": "YOUR_TWILIO_ACCOUNT_SID",
        "TWILIO_API_KEY": "YOUR_TWILIO_API_KEY",
        "TWILIO_API_SECRET": "YOUR_TWILIO_API_SECRET"
      }
    }
  }
}
3

Set up environment variables

Twilio MCP requires the following environment variables:

TWILIO_ACCOUNT_SIDRequired

Twilio account SID

TWILIO_API_KEYRequired

Twilio API key

TWILIO_API_SECRETRequired

Twilio API secret

4

Verify it works

Restart Claude Code. Twilio MCP should appear in your MCP server list with 20 tools available.

This server adds approximately 10,300 tokens to your context window for tool definitions.

Set up Twilio MCP in other editors

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