Agents

Spin up an AI agent that handles your client's customer conversations across Telegram, Instagram, WhatsApp, and voice calls — run as many as you need for different purposes.

Configure an assistant

1. Name — internal label, visible only to your team.
2. Language — primary response language; the AI still reads incoming messages in any language.
3. Voice — phone calls only. ElevenLabs voices need an ElevenLabs integration.
4. LLM model — OpenAI / Anthropic / Gemini / Groq. New assistants start on gpt-5.1; switch to a cheaper model (gpt-5-mini, gemini-3.5-flash-lite) to save, or to claude-sonnet-4-5 / gpt-5.5 for harder tasks. The current catalogue with prices is in the model picker.
5. First message + Prompt — the opening greeting, then system instructions for role, tone, and rules. Be specific, set boundaries, and tell it to hand off to humans via turnOffAiMode when needed.

API: api.happ.tools/reference

Next

• Knowledge base — feed it your PDFs, FAQs, or website
• Tools & webhook actions — let it call your APIs (CRM, booking, returns)
• AI control — when and how it hands off to a human