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

# Introduction

> The inbox where AI agents meet humans.

## What is Placet?

Placet is a **self-hostable, plugin-driven platform for Human-in-the-Loop workflows**. It provides a purpose-built inbox where AI agents, automation workflows, and no-code tools collaborate with humans through structured interactions.

Unlike chat apps with agent integrations bolted on, Placet is designed from the ground up for the agent-human interaction loop.

<Frame caption="The Placet inbox — agents and humans collaborating in real-time">
  <img src="https://mintcdn.com/centerbit-417070e4/jQf4uVx0kBNA6kix/images/chat-example.png?fit=max&auto=format&n=jQf4uVx0kBNA6kix&q=85&s=8a4bfee54c0765eac7570ed57517842f" alt="Placet chat example" width="2246" height="1756" data-path="images/chat-example.png" />
</Frame>

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/quickstart">
    Get up and running in minutes with Docker Compose
  </Card>

  <Card title="Self-Hosting" icon="server" href="/self-hosting">
    Deploy Placet on your own infrastructure
  </Card>

  <Card title="API Reference" icon="code" href="/api-reference">
    Explore the REST API for agent integration
  </Card>

  <Card title="Plugins" icon="puzzle-piece" href="/plugins/overview">
    Extend Placet with custom message types
  </Card>
</CardGroup>

## Why Placet?

AI agents and automations are getting more capable every day, but they still need humans in the loop: approvals, reviews, feedback, complex decisions.

Most teams wire this through Slack, Teams, or email, tools designed for human-to-human chat, not human-to-agent collaboration.

**Placet is different:**

<AccordionGroup>
  <Accordion title="Purpose-built for Human-in-the-Loop">
    The entire platform is designed around the agent-human interaction loop. Not a chat app with
    agent integrations bolted on. Works with AI agents, CI/CD pipelines, no-code tools, and any
    HTTP-capable automation.
  </Accordion>

  <Accordion title="5 built-in review types">
    Approval buttons, single/multi selection, dynamic forms, free-text input, and freeform JSON.
    Each review type renders natively in the chat and supports expiry, webhooks, and long-polling.
  </Accordion>

  <Accordion title="Integrated file storage with inline preview">
    Upload files via API, attach them to messages, and preview them directly in the chat. Supports
    images, PDFs, video, audio, Office documents, spreadsheets, code files, and more. Includes
    canvas annotation tools for marking up images.
  </Accordion>

  <Accordion title="Agent status dashboard">
    Agents report their status (active, busy, error, offline) via a heartbeat endpoint. The frontend
    shows a live status overview with uptime, message stats, and status history.
  </Accordion>

  <Accordion title="Plugin system for unlimited flexibility">
    Two files (`plugin.json` + `render.html`) = a custom message type. Build CRM cards, diagram
    renderers, diff viewers, or whatever your workflow needs.
  </Accordion>

  <Accordion title="Multiple communication patterns">
    WebSocket for real-time, webhooks for async delivery, long-polling for synchronous agents. Your
    agent connects however it wants.
  </Accordion>

  <Accordion title="Self-hostable, no vendor lock-in">
    One `docker compose up` and you're running. No cloud dependency, no LLM provider coupling.
  </Accordion>
</AccordionGroup>