Build voice agents on the Alebex engine. Sign up, generate a key, and place your first call today, with $25 of credit to start.
A developer account is one of three ways in. Partners white-label the platform, businesses run agents on it, and developers build on its API. Same engine underneath.
Agents, calls, tools, webhooks and a full call log, all live in production and all in the docs.
Create agents in the console or over the API: a prompt, voices in up to 5 languages, a standard or premium tier, and your own tools.
Outbound and inbound calls on your own Twilio account, or browser calls over a WebSocket.
Let an agent call your HTTPS endpoints mid-conversation to look things up or take action.
Tell a call something happened in your app, and the agent mentions it at the next natural pause.
A report of every call (transcript, recording, outcome, tool calls, cost) at your endpoint, with retries and resend.
Every call with its transcript, recording, per-turn latency and cost.
Streaming transcription over a WebSocket, $0.12 an hour, first hour free.
Download AGENTS.md, and your assistant has the whole API contract in one file.
Five steps, all self-serve. You can build on Alebex without talking to anyone first.
POST /public/agents, then talk to it in your browser.
Generate your key in the console when you’re ready. The same key works for the agents API, phone calls and browser calls. The console can download a ready .env file with your key and the API hosts.
Every new account gets $25 of trial credit, good for 30 days. Usage is billed per minute from a prepaid balance, at the rate of the agent’s tier. Phone carrier charges are billed by your own Twilio account.
| Trial | Paid | |
|---|---|---|
| Call length | Up to 10 minutes | Up to the agent’s limit, 1–120 minutes |
| Calls at once | 3 | 5 per account |
| Outbound phone calls | Yes, after accepting the Communications Policy | Yes |
| Inbound numbers | No | Yes, on your own Twilio account |
| Speech-to-text | First hour free | $0.12 an hour |