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Voice Calls, SMS, and WhatsApp for Claude Code with cross-channel context sharing.
About
Voice Calls, SMS, and WhatsApp for Claude Code with cross-channel context sharing.
What You'll Need
Set these up before or after installing:
Phone provider: 'twilio' or 'telnyx'
Environment variable: BETTERCALLCLAUDE_PHONE_PROVIDER
Your phone number in E.164 format
Environment variable: BETTERCALLCLAUDE_PHONE_NUMBER
Twilio Account SID or Telnyx API KeyRequired
Environment variable: BETTERCALLCLAUDE_PHONE_ACCOUNT_SID
Twilio Auth Token or Telnyx API SecretRequired
Environment variable: BETTERCALLCLAUDE_PHONE_AUTH_TOKEN
Your personal phone number in E.164 format (for outbound calls/SMS)
Environment variable: BETTERCALLCLAUDE_USER_PHONE_NUMBER
OpenAI API key for speech-to-text (Whisper) and text-to-speechRequired
Environment variable: BETTERCALLCLAUDE_OPENAI_API_KEY
WhatsApp number if different from phone number (e.g., Twilio Sandbox)
Environment variable: BETTERCALLCLAUDE_WHATSAPP_NUMBER
Local HTTP server port
Environment variable: BETTERCALLCLAUDE_PORT
Override Tailscale hostname for webhook URL
Environment variable: TAILSCALE_HOSTNAME
WhatsApp provider: set to 'baileys' for free WhatsApp via WebSocket (no Twilio needed)
Environment variable: BETTERCALLCLAUDE_WHATSAPP_PROVIDER
Path to Baileys auth state directory (default: data/baileys-auth)
Environment variable: BETTERCALLCLAUDE_BAILEYS_AUTH_DIR
Max WhatsApp chat history messages to retain (default: 50)
Environment variable: BETTERCALLCLAUDE_WHATSAPP_CHAT_HISTORY_SIZE
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-sns45-better-call-claude": {
"env": {
"NGROK_AUTHTOKEN": "your-ngrok-authtoken-here",
"BETTERCALLCLAUDE_PHONE_NUMBER": "your-bettercallclaude-phone-number-here",
"BETTERCALLCLAUDE_PHONE_PROVIDER": "your-bettercallclaude-phone-provider-here",
"BETTERCALLCLAUDE_PHONE_AUTH_TOKEN": "your-bettercallclaude-phone-auth-token-here",
"BETTERCALLCLAUDE_PHONE_ACCOUNT_SID": "your-bettercallclaude-phone-account-sid-here"
},
"args": [
"-y",
"better-call-claude"
],
"command": "npx"
}
}
}Security Report
10.0
Low Risk10.0Low RiskValid MCP server (2 strong, 3 medium validity signals). No known CVEs in dependencies. Package registry verified. Imported from the Official MCP Registry. Trust signals: trusted author (3/3 approved).
3 files analyzed · 1 issue found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
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