# Page Not Found

The URL `join-us/for-developers` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Why Invest in HAiO?](https://haio-official.gitbook.io/haio-whitepaper-en/join-us/why-invest-in-haio.md)
- [Premium Membership by Role (Coming Soon)](https://haio-official.gitbook.io/haio-whitepaper-en/join-us/premium-membership-by-role-coming-soon.md)
- [Participation Opportunities by Role](https://haio-official.gitbook.io/haio-whitepaper-en/join-us/participation-opportunities-by-role.md)
- [Upcoming Features & Developments](https://haio-official.gitbook.io/haio-whitepaper-en/dapp/upcoming-features-and-developments.md)
- [Tokenomics](https://haio-official.gitbook.io/haio-whitepaper-en/haio-token/tokenomics.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://haio-official.gitbook.io/haio-whitepaper-en/join-us/why-invest-in-haio.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://haio-official.gitbook.io/haio-whitepaper-en/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://haio-official.gitbook.io/haio-whitepaper-en/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/haio-whitepaper-en/join-us/why-invest-in-haio.md`).

You may also use `Accept: text/markdown` header for content negotiation.