Phone Numbers for AI Agents OpenClaw, Hermes & Voice API

Give your AI agent a real phone number to make calls, send SMS, and handle inbound conversations through one API. AgentLine handles raw audio streams, transcribes them in real-time, and sends clean JSON to the agent's webhook. This enables bidirectional conversation between the AI agent and the recipient of the call. The setup process involves signing up, getting an API key, and installing a single file that gives the AI agent full telephony powers. The installation process takes 30 seconds. The API can be used with various AI agents such as Claude Code, Cursor, Hermes, or OpenClaw. Users can instruct their AI agent to obtain a number and place an outbound call. AgentLine supports multiple countries, although the specific countries are not listed. Users can also handle incoming calls using the API. The difference between AgentLine and Twilio is noted, and users have the option to use their existing phone number.