ElevenLabs Phone Calls

Make outbound AI phone calls using ElevenLabs Conversational AI agents via Twilio.

Prerequisites

1. ElevenLabs API Key — set ELEVENLABS_API_KEY env var or store at ~/.config/elevenlabs/api_key
2. ElevenLabs Agent — create at https://elevenlabs.io/app/agents
3. Twilio Phone Number — import into ElevenLabs at https://elevenlabs.io/app/agents/phone-numbers

Quick Start

# List your agents
{baseDir}/scripts/agents.sh

# List your phone numbers
{baseDir}/scripts/phones.sh

# Make a call
{baseDir}/scripts/call.sh --agent <agent_id> --phone <phone_number_id> --to "+15551234567"

# Check conversation transcript
{baseDir}/scripts/conversation.sh <conversation_id>

Commands

Make Outbound Call

{baseDir}/scripts/call.sh \
  --agent <agent_id> \
  --phone <phone_number_id> \
  --to "+15551234567" \
  [--vars '{"name":"John","appointment":"Monday 9am"}']

List Recent Conversations

{baseDir}/scripts/conversations.sh [--agent <agent_id>] [--limit 10]

Get Conversation Details

{baseDir}/scripts/conversation.sh <conversation_id>
{baseDir}/scripts/conversation.sh <conversation_id> --transcript
{baseDir}/scripts/conversation.sh <conversation_id> --audio > call.mp3

Dynamic Variables

Pass context to your agent:

{baseDir}/scripts/call.sh \
  --agent abc123 --phone phone_xyz --to "+15121234567" \
  --vars '{"customer_name":"Jane","reason":"appointment follow-up"}'

Reference in your agent's system prompt as {{customer_name}}, {{reason}}, etc.

Costs

• ElevenLabs: ~$0.07-0.15/min depending on plan
• Twilio: $0.014/min + phone number ($1/mo)