# Overview (/en/docs/guide/about)

Accuracy guarantees, documentation endpoints for AI, and notes on the port and the architecture.



*For: everyone*

<Cards>
  <Card title="Accuracy" href="/en/docs/guide/about/accuracy" description="How 716,314 golden cases hold zero divergence from JS iztro, and where that claim stops" />

  <Card title="Documentation endpoints for AI" href="/en/docs/guide/guides/llms-txt" description="llms.txt, llms-full.txt, per-page Markdown and Accept-header negotiation" />

  <Card title="Notes on the port" href="/en/docs/guide/about/architecture" description="The relationship to iztro and the architectural trade-offs behind the three bindings" />

  <Card title="Migrating from iztro: API mapping" href="/en/docs/guide/about/iztro-parity" description="Where each iztro API landed, the few that changed shape, and the ones not provided" />
</Cards>

## Project information [#project-information]

| Item            | Value                                                            |
| --------------- | ---------------------------------------------------------------- |
| iztro reference | v2.5.8 (version pinned)                                          |
| Licence         | MIT                                                              |
| Repository      | [github.com/x-haose/x-iztro](https://github.com/x-haose/x-iztro) |
| crates.io       | [x-iztro](https://crates.io/crates/x-iztro)                      |
| PyPI            | [x-iztro](https://pypi.org/project/x-iztro/)                     |

The current version number is whatever is published on crates.io and PyPI.