Welcome to Delphi
Delphi is a voice-AI platform. Teams build apps that handle phone calls and browser sessions using AI agents. This user guide is organised around what you're trying to do, not what the platform's features are called internally.
Pick the bucket that matches you:
| If you are… | Start with |
|---|---|
| New to Delphi, signing in for the first time, or unsure how the UI is laid out | Get started |
| Building voice apps, authoring flows, defining endpoints, or reviewing call recordings | For users |
| Running a team — managing members, secrets, API keys, billing, notifications | For team admins |
| Running the whole Delphi installation — base numbers, SIP trunks, server groups, cron | For platform admins |
The mental model
| Building block | What it is | Where to read |
|---|---|---|
| App | The container for everything that makes a Delphi product — flows, endpoints, providers. | Apps |
| Flow | The conversation graph authored in the Flow Designer. | Flow Designer |
| Voice agent | A voice_agent node — the LLM-driven step inside a flow. | Nodes → Voice agent |
| Provider | An AI vendor configuration (OpenAI, Azure, Vodafone TOBi, …) referenced from the flow. | Providers |
| Endpoint | The phone number / WebRTC / web chat entry point that maps a session into a flow. | Endpoints |
| Conversation | The persisted timeline of a single call or session. | Conversations |