# Introduction

DeltaDeFi is a decentralized exchange built on Cardano, powered by Hydra L2 — the best place to trade ADA onchain.

We deliver the performance of a centralized exchange with the security of self-custody: tightest spreads, sub-second fills, and your keys always in your hands.

## Why DeltaDeFi

{% hint style="success" %}
**Instant Confirmation** — \~50ms average on Hydra L2
{% endhint %}

{% hint style="success" %}
**10bps Flat Fee** — 0.10% per trade, no gas fees, no hidden costs
{% endhint %}

{% hint style="success" %}
**Binance-Compatible API** — Full REST + WebSocket for bots, strategies, and integrations
{% endhint %}

{% hint style="success" %}
**Self-Custody** — Non-custodial by design, with L1 settlement guarantee
{% endhint %}

## Products

<table><thead><tr><th width="164.49609375">Product</th><th width="136.5234375">Status</th><th>Description</th></tr></thead><tbody><tr><td><strong>Spot Trading</strong></td><td>Live</td><td>Tightest spreads. Sub-second fills. #1 ADA on-chain.</td></tr><tr><td><strong>Vaults</strong></td><td>Coming Soon</td><td>Managed USDC strategies with on-chain NAV.</td></tr><tr><td><strong>XP Program</strong></td><td>Season 1</td><td>Highest rewards for earliest believers. Trade, Deposit, Refer to earn XP.</td></tr></tbody></table>


---

# 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.deltadefi.io/about/readme.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.