# Introduction

- [Quick start guide to WatchData!](https://docs.watchdata.io/introduction/quick-start-guide-to-watchdata.md): Quick start guide to WatchData! Learn how to create a key, make your first request and get to building!
- [Why Use WatchData?](https://docs.watchdata.io/introduction/why-use-watchdata.md): WatchData provides a comprehensive developer platform for your dApps on the Ethereum and others popular Blockchains.
- [Supported chains](https://docs.watchdata.io/introduction/supported-chains.md): List of chains supported by WatchData
- [Error Reference](https://docs.watchdata.io/introduction/error-reference.md): Learn about the standard JSON-RPC error codes.
- [Change Log (update)](https://docs.watchdata.io/introduction/change-log-update.md): Records of all notable changes made to WatchData.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.watchdata.io/introduction.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.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.