> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tavus.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Discover the Tavus API - build a real-time, human-like multimodal video conversation with a face.

## Getting Started with Tavus APIs

Tavus APIs let you build a **Conversational Video Interface (CVI)**: real-time video conversations with a PAL. Each session pairs a **PAL** (behavior, knowledge, pipeline) with a **face** (photorealistic visual, Phoenix).

<Note>
  **Terminology update:** Tavus now uses **PAL** (behavior, knowledge, and pipeline configuration) and **Face** (visual appearance and voice) in the API and docs. Legacy names **persona** and **replica** still work on existing endpoints and request fields (`/v2/personas`, `/v2/replicas`, `persona_id`, `replica_id`, and related aliases) for backward compatibility.
</Note>

You can access the API through standard HTTP requests, making it easy to integrate CVI into any application or platform.

<Info>
  For machine-readable API and docs context, use
  `https://docs.tavus.io/openapi.yaml` as the canonical HTTP API contract,
  `https://docs.tavus.io/llms.txt` as the docs page index, and
  `https://docs.tavus.io/llms-full.txt` as the full bundled docs export.
</Info>

### Who Is This For?

This API is for developers looking to add real-time, human-like AI interactions into their apps or services.

### What Can You Do?

Use the end-to-end CVI pipeline to build human-like, real-time multimodal video conversations with these three core components:

<CardGroup cols={3}>
  <Card title="PAL" icon="heart-pulse" href="/api-reference/pals/create-pal">
    Define the PAL's behavior, tone, and knowledge.
  </Card>

  <Card title="Face" icon="user-group" href="/api-reference/faces/create-face">
    Train a lifelike digital face from a short video or headshot image.
  </Card>

  <Card title="Conversation" icon="video" href="/api-reference/conversations/create-conversation">
    Create a real-time video call session with your PAL.
  </Card>
</CardGroup>

A typical path: [Authentication](/api-reference/authentication), then [Create PAL](/api-reference/pals/create-pal) (`POST /v2/pals`), [Create Face](/api-reference/faces/create-face) (`POST /v2/faces`), and [Create Conversation](/api-reference/conversations/create-conversation). For what CVI includes end-to-end, see [What is CVI?](/sections/conversational-video-interface/overview-cvi).