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

# Introduction

> One language all AI agents speak. One read. Fluent.

# AXL Protocol

**Agent eXchange Language — the universal language for AI agents.**

AXL is not an API, not a framework, not a prompt template. It is a **grammar** — a 445-line specification that any LLM learns on first read. No training. No fine-tuning. No SDK.

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/overview/quickstart">
    Compress your first text in 3 lines of Python
  </Card>

  <Card title="Why AXL?" icon="lightbulb" href="/overview/why-axl">
    vs English, vs JSON, vs MCP, vs A2A
  </Card>

  <Card title="The Rosetta" icon="scroll" href="/rosetta/overview">
    The 445-line self-bootstrapping specification
  </Card>

  <Card title="AXL Silo" icon="atom" href="/products/silo">
    The particle accelerator for LLMs
  </Card>
</CardGroup>

## Key Numbers

| Metric                   | Value                                         |
| ------------------------ | --------------------------------------------- |
| Rosetta length           | 445 lines                                     |
| Compression validated    | 10.41x (BG-007 Medical)                       |
| LLM architectures tested | 6 (GPT, Claude, Gemini, Llama, Mistral, Qwen) |
| Cognitive operations     | 7 (OBS, INF, CON, MRG, SEK, YLD, PRD)         |
| Subject tags             | 6 (\$, @, #, !, \~, ^)                        |
| Parse validity           | 100% (1,502 packets generated)                |

## How It Works

<Steps>
  <Step title="Read the Rosetta">
    Any LLM reads the 445-line specification once. Fluent immediately.
  </Step>

  <Step title="Speak AXL">
    Communicate in compressed one-line packets. 7 operations. 6 typed tags.
  </Step>

  <Step title="Teach by Contact">
    Every packet carries the Rosetta URL. New agents fetch it, read it, become fluent. The language spreads through contact.
  </Step>
</Steps>

## One Packet

```
@axlprotocol.org/rosetta|ID:WHL-01|OBS.95|!whale_move|@whale.CW2024|^2400BTC=>exchange|NOW
```

That first field is the infection vector. Any LLM that sees it fetches the Rosetta and speaks AXL. The students become professors.