io.github.sns45/better-call-claude

io.github.sns45/better-call-claude·v3.1.1·Chat & Messaging

Voice Calls, SMS, and WhatsApp for Claude Code with cross-channel context sharing.

Trust verdict · v1 advisory · method

NOT YET SCREENEDno verdict on file

Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.

Own this server? Screen its description →

Environment variables

BETTERCALLCLAUDE_PHONE_PROVIDER

required

Phone provider: 'twilio' or 'telnyx'

BETTERCALLCLAUDE_PHONE_NUMBER

required

Your phone number in E.164 format

BETTERCALLCLAUDE_PHONE_ACCOUNT_SID

requiredsecret

Twilio Account SID or Telnyx API Key

BETTERCALLCLAUDE_PHONE_AUTH_TOKEN

requiredsecret

Twilio Auth Token or Telnyx API Secret

BETTERCALLCLAUDE_USER_PHONE_NUMBER

required

Your personal phone number in E.164 format (for outbound calls/SMS)

BETTERCALLCLAUDE_OPENAI_API_KEY

requiredsecret

OpenAI API key for speech-to-text (Whisper) and text-to-speech

BETTERCALLCLAUDE_WHATSAPP_NUMBER

WhatsApp number if different from phone number (e.g., Twilio Sandbox)

BETTERCALLCLAUDE_PORT

Local HTTP server port

TAILSCALE_HOSTNAME

Override Tailscale hostname for webhook URL

BETTERCALLCLAUDE_WHATSAPP_PROVIDER

WhatsApp provider: set to 'baileys' for free WhatsApp via WebSocket (no Twilio needed)

BETTERCALLCLAUDE_BAILEYS_AUTH_DIR

Path to Baileys auth state directory (default: data/baileys-auth)

BETTERCALLCLAUDE_WHATSAPP_CHAT_HISTORY_SIZE

Max WhatsApp chat history messages to retain (default: 50)

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

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Install

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "better-call-claude": {
      "command": "npx",
      "args": [
        "-y",
        "better-call-claude"
      ],
      "env": {
        "BETTERCALLCLAUDE_PHONE_PROVIDER": "<bettercallclaude_phone_provider>",
        "BETTERCALLCLAUDE_PHONE_NUMBER": "<bettercallclaude_phone_number>",
        "BETTERCALLCLAUDE_PHONE_ACCOUNT_SID": "<your-bettercallclaude_phone_account_sid>",
        "BETTERCALLCLAUDE_PHONE_AUTH_TOKEN": "<your-bettercallclaude_phone_auth_token>",
        "BETTERCALLCLAUDE_USER_PHONE_NUMBER": "<bettercallclaude_user_phone_number>",
        "BETTERCALLCLAUDE_OPENAI_API_KEY": "<your-bettercallclaude_openai_api_key>",
        "BETTERCALLCLAUDE_WHATSAPP_NUMBER": "<bettercallclaude_whatsapp_number>",
        "BETTERCALLCLAUDE_PORT": "<bettercallclaude_port>",
        "TAILSCALE_HOSTNAME": "<tailscale_hostname>",
        "BETTERCALLCLAUDE_WHATSAPP_PROVIDER": "<bettercallclaude_whatsapp_provider>",
        "BETTERCALLCLAUDE_BAILEYS_AUTH_DIR": "<bettercallclaude_baileys_auth_dir>",
        "BETTERCALLCLAUDE_WHATSAPP_CHAT_HISTORY_SIZE": "<bettercallclaude_whatsapp_chat_history_size>"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "better-call-claude": {
      "command": "npx",
      "args": [
        "-y",
        "better-call-claude"
      ],
      "env": {
        "BETTERCALLCLAUDE_PHONE_PROVIDER": "<bettercallclaude_phone_provider>",
        "BETTERCALLCLAUDE_PHONE_NUMBER": "<bettercallclaude_phone_number>",
        "BETTERCALLCLAUDE_PHONE_ACCOUNT_SID": "<your-bettercallclaude_phone_account_sid>",
        "BETTERCALLCLAUDE_PHONE_AUTH_TOKEN": "<your-bettercallclaude_phone_auth_token>",
        "BETTERCALLCLAUDE_USER_PHONE_NUMBER": "<bettercallclaude_user_phone_number>",
        "BETTERCALLCLAUDE_OPENAI_API_KEY": "<your-bettercallclaude_openai_api_key>",
        "BETTERCALLCLAUDE_WHATSAPP_NUMBER": "<bettercallclaude_whatsapp_number>",
        "BETTERCALLCLAUDE_PORT": "<bettercallclaude_port>",
        "TAILSCALE_HOSTNAME": "<tailscale_hostname>",
        "BETTERCALLCLAUDE_WHATSAPP_PROVIDER": "<bettercallclaude_whatsapp_provider>",
        "BETTERCALLCLAUDE_BAILEYS_AUTH_DIR": "<bettercallclaude_baileys_auth_dir>",
        "BETTERCALLCLAUDE_WHATSAPP_CHAT_HISTORY_SIZE": "<bettercallclaude_whatsapp_chat_history_size>"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y better-call-claude

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-sns45-better-call-claude

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v3.1.1
category: Chat & Messaging
quality: 79 / 100
operator: sns45

Provenance

Verdict history is anchored to Bitcoin via OpenTimestamps. The free tier returns the current verdict only; the anchored record is served on the authenticated tier.

Links

Repository →