Enable your AI agent to initiate phone calls using ElevenLabs voice agents and Twilio for seamless, automated outbound communication.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install outbound-call
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install outbound-call using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Outbound Call?
This skill empowers AI agents to bridge the gap between digital processing and real-world telecommunications. By leveraging the ElevenLabs conversational voice API and Twilio infrastructure, the outbound-call skill allows your agent to place calls with natural-sounding voices and dynamic context.
It serves as a powerful addition to the library of Openclaw Skills, ensuring your AI can proactively reach out to users or customers to deliver information or gather responses in real-time. The voice agent on the call uses the same intelligence as your inbound workflows, providing a consistent and high-quality user experience across all voice channels.
Outbound Call Use Cases
- Automating appointment reminders and confirmation calls to reduce no-shows.
- Conducting follow-up calls for customer support or billing inquiries with specific context.
- Notifying stakeholders of critical system alerts or urgent updates through a direct phone line.
- Gathering feedback or conducting short surveys via natural voice interaction.
- Dialing contact numbers to verify identity or provide multi-factor authentication details.
How Outbound Call Works
- The user provides a destination phone number and optional context or a specific opening message to the agent.
- The script validates and reformats the phone number into the required E.164 global standard.
- A request is sent to the ElevenLabs API using the pre-configured agent and phone number IDs.
- The ElevenLabs voice agent initiates the call through Twilio, utilizing the agent brain for the dialogue.
- Upon completion or failure, the skill returns a conversation ID or detailed error log back to the Openclaw Skills environment for tracking.
Outbound Call Setup
To use this skill within your Openclaw Skills collection, you must first configure your environment variables with your ElevenLabs credentials:
export ELEVENLABS_API_KEY="your_api_key"
export ELEVENLABS_AGENT_ID="your_agent_id"
export ELEVENLABS_PHONE_NUMBER_ID="your_phone_number_id"
You can then trigger a call from the CLI or within your agent workflow:
python3 skills/outbound-call/call.py +15551234567 "Hello, this is a call from your AI assistant."
Outbound Call Data Schema & Taxonomy
The skill processes and returns data using the following structure:
| Attribute | Description | Format |
|---|---|---|
| phone_number | The recipient's destination number | E.164 (e.g., +15551234567) |
| first_message | The custom greeting spoken upon pickup | String |
| call_context | Background information for the AI agent | String |
| conversation_id | Unique ID for tracking the call session | String (UUID) |
| status | Success or failure result of the call attempt | String |
Outbound Call Advanced Features
- Dynamic Context Injection: Pass specific metadata like billing IDs or user history directly into the call script for personalized interactions.
- Automated Number Formatting: Automatically converts user-provided strings like (555) 123-4567 into the required E.164 format.
- Error Reporting: Provides granular feedback and troubleshooting steps if a call fails to connect.
- Consent Protocols: Built-in rules requiring explicit user confirmation before any call is initiated through Openclaw Skills.
SKILL.md
Loading
Related Openclaw Skills
AgentMarket Skill
A comprehensive toolkit for interacting with the AgentMarket prediction market protocol on Base Sepolia using USDC.
XMTP CLI
A powerful command-line interface for interacting with the XMTP network to manage secure messaging, groups, and debugging workflows.
XMTP Agents
A comprehensive toolkit for building, configuring, and extending event-driven messaging agents on the XMTP network.
MindGraph
MindGraph integrates Obsidian-style wikilinks and learnable MindSkills into your workspace to create a connected, intelligent knowledge base.
SoloBuddy
A living build-in-public companion that manages content workflows, Twitter engagement, and project personality creation for indie hackers.
Tether WDK (Wallet Development Kit)
A modular SDK for building non-custodial, multi-chain wallets with integrated support for swaps, bridging, and DeFi protocols.
METADATA
Featured*
