Awesome-openclaw-skills phone-agent

Run a real-time AI phone agent using Twilio, Deepgram, and ElevenLabs. Handles incoming calls, transcribes audio, generates responses via LLM, and speaks back via streaming TTS. Use when user wants to: (1) Test voice AI capabilities, (2) Handle phone calls programmatically, (3) Build a conversational voice bot.

install
source · Clone the upstream repo
git clone https://github.com/sundial-org/awesome-openclaw-skills
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/sundial-org/awesome-openclaw-skills "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/phone-agent" ~/.claude/skills/sundial-org-awesome-openclaw-skills-phone-agent && rm -rf "$T"
OpenClaw · Install into ~/.openclaw/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/sundial-org/awesome-openclaw-skills "$T" && mkdir -p ~/.openclaw/skills && cp -r "$T/skills/phone-agent" ~/.openclaw/skills/sundial-org-awesome-openclaw-skills-phone-agent && rm -rf "$T"
manifest: skills/phone-agent/SKILL.md
source content

Phone Agent Skill

Runs a local FastAPI server that acts as a real-time voice bridge.

Architecture

Twilio (Phone) <--> WebSocket (Audio) <--> [Local Server] <--> Deepgram (STT)
                                                  |
                                                  +--> OpenAI (LLM)
                                                  +--> ElevenLabs (TTS)

Prerequisites

  1. Twilio Account: Phone number + TwiML App.
  2. Deepgram API Key: For fast speech-to-text.
  3. OpenAI API Key: For the conversation logic.
  4. ElevenLabs API Key: For realistic text-to-speech.
  5. Ngrok (or similar): To expose your local port 8080 to Twilio.

Setup

  1. Install Dependencies:

    pip install -r scripts/requirements.txt
    
  2. Set Environment Variables (in

    ~/.moltbot/.env
    ,
    ~/.clawdbot/.env
    , or export):

    export DEEPGRAM_API_KEY="your_key"
    export OPENAI_API_KEY="your_key"
    export ELEVENLABS_API_KEY="your_key"
    export TWILIO_ACCOUNT_SID="your_sid"
    export TWILIO_AUTH_TOKEN="your_token"
    export PORT=8080
    
  3. Start the Server:

    python3 scripts/server.py
    
  4. Expose to Internet:

    ngrok http 8080
    
  5. Configure Twilio:

    • Go to your Phone Number settings.
    • Set "Voice & Fax" -> "A Call Comes In" to Webhook.
    • URL:
      https://<your-ngrok-url>.ngrok.io/incoming
    • Method:
      POST

Usage

Call your Twilio number. The agent should answer, transcribe your speech, think, and reply in a natural voice.

Customization

  • System Prompt: Edit
    SYSTEM_PROMPT
    in
    scripts/server.py
    to change the persona.
  • Voice: Change
    ELEVENLABS_VOICE_ID
    to use different voices.
  • Model: Switch
    gpt-4o-mini
    to
    gpt-4
    for smarter (but slower) responses.