# Start Here

Welcome to the Gate402 documentation!

Turn any API into a paid API in 5 minutes

Gate402 is a payment proxy that lets you monetize any API instantly. No code changes to your API required. Just point Gate402 at your API, set a price, and start earning crypto.

## Sections

* [**Introduction**](broken://pages/2791e855d99062158509b900555862c6fa200a3f): What is Gate402 and why use it?
* [**Quick Start**](broken://pages/7d2fdfeba6ed838daf763cd296bc2be3b3a30dc5): Get up and running in 5 minutes.
* [**Core Concepts**](broken://pages/1fa0f2271ff1765c338bf1a75edff80e9efba6a0): Understand how the x402 protocol works within Gate402.
* [**Examples**](broken://pages/46f8b04c22aafa8449b643eeb7181d4b7179daf0): Real-world scenarios (Weather, AI, MCP).
* [**Troubleshooting**](broken://pages/0b4180dc0a890aa5e9c651fd76813be1ad3591ad): Common issues and how to fix them.

{% hint style="success" %}
Ready to monetize your API?

<a href="https://gate402.io/signup" class="button primary">Sign Up Now</a>
{% endhint %}


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# 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://gate402.gitbook.io/gate402-docs/start-here.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.