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

# ORBEXA Learn — AI Agent Commerce Knowledge Base

> The definitive knowledge base for AI agent commerce. Learn how to make your products discoverable, trusted, and purchasable by AI agents.

# AI Agent Commerce Knowledge Base

In 2026, AI agents are transforming how people shop. Assistants like ChatGPT, Claude, and Gemini can already search for products, compare prices, and place orders on behalf of consumers.

Is your business ready?

<CardGroup cols={3}>
  <Card title="I'm a Merchant" icon="store" href="/en/paths/merchant">
    No coding required. Learn how AI agent commerce works in 30 minutes and make your products discoverable by AI.
  </Card>

  <Card title="I'm a Developer" icon="code" href="/en/paths/developer">
    Integrate OTR trust scores, UCP product discovery, ACP agent checkout, and MCP tool connections. Full API docs and code examples.
  </Card>

  <Card title="I'm an SEO Professional" icon="chart-line" href="/en/paths/seo">
    A new frontier beyond traditional SEO. Master AI-SEO and make your site visible to AI crawlers.
  </Card>
</CardGroup>

## Start Here

<Card title="5-Minute Quick Start" icon="rocket" href="/en/quick-start/index">
  Enter your domain, check your AI trust score, and choose your learning path.
</Card>

## 8 Books

| # | Title                                               | Audience                          | Chapters  |
| - | --------------------------------------------------- | --------------------------------- | --------- |
| 1 | [AI Agent Commerce Fundamentals](/en/book-1/index)  | Merchants / Operators             | 8         |
| 2 | [OTR Open Trust Rating](/en/book-2/index)           | Developers / Protocol Researchers | 13        |
| 3 | [UCP Universal Commerce Protocol](/en/book-3/index) | Developers                        | 10        |
| 4 | [ACP Agent Commerce Protocol](/en/book-4/index)     | Developers                        | 8         |
| 5 | [MCP Model Context Protocol](/en/book-5/index)      | Developers                        | 10        |
| 6 | [SEO for AI](/en/book-6/index)                      | SEO Professionals                 | 14        |
| 7 | [ORBEXA All-in-One Solution](/en/book-7/index)      | Merchants / Developers            | 8         |
| 8 | [Glossary](/en/glossary/index)                      | Everyone                          | 55+ Terms |

## Protocol Attribution

| Protocol | Created By                                | Official Specification                                     |
| -------- | ----------------------------------------- | ---------------------------------------------------------- |
| OTR      | ORBEXA                                    | This site is the authoritative documentation               |
| UCP      | Google / Shopify et al.                   | [ucp.dev](https://ucp.dev)                                 |
| ACP      | Stripe (OpenAI was the first implementer) | [agenticcommerce.dev](https://agenticcommerce.dev)         |
| MCP      | Linux Foundation                          | [modelcontextprotocol.io](https://modelcontextprotocol.io) |