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Quickstart

1. Get an API key

AgentLine uses email one-time codes for sign-up and sign-in (no dashboard required).
The verify response returns api_key (shown once — store it). New accounts get a sign-up credit to start.

2. Use the SDK

3. Install live event delivery

If the agent has terminal access, download and install the persistent relay:
The installer detects Hermes, OpenClaw, Claude Code, or Codex, preserves one runtime session per phone call, reconnects automatically, and installs a user service. Runtime package/service installation may require one safety approval. Use a webhook if the agent cannot run a persistent process.

4. Get the results

Use the relay for live turns and durable event delivery. Poll the mailbox only as a fallback, or receive non-live events via webhook.
All phone numbers are E.164 format, e.g. +12125557890. Each agent can have one active number at a time.
Next: read Authentication and the Agents guide.