# Swap API

### Introduction:

[OpenOcean Swap API](https://apis.openocean.finance/developer/apis/swap-api/api-v4) is a **multi-chain DEX aggregation and smart order routing API** that gives developers access to the **best token swap prices** and seamless on-chain execution. With a single integration, you can add crypto trading directly into your application - ideal for **wallets, DeFi dApps, trading bots, or institutional platforms, etc**.

It helps you:

* **Find the best swap prices** across 1,000+ liquidity sources, including AMMs (e.g. Uniswap V4, Balancer V3, PancakeSwap Infinity, Curve), RFQ and DeFi launchpads (e.g., Virtuals, PumpFun).
* **Execute trades on-chain** with just a few lines of code.
* **Support the most chains - 40+ chains**, covering both EVM and non-EVM networks such as Solana and Sui.

With OpenOcean, you get **deep liquidity, high reliability, and developer-friendly integration** to power trading at scale.

### API Plans & Pricing

* **Public Plan**: 2 RPS (20 requests / 10 seconds).
* Exceeding the limit may result in rate limiting or temporary blocking.
* **Swap Fees**: It is flexible and may vary depending on use case and integration. **On Solana, the Swap API starts from FREE.**
* **Trial Period**: 2-week free testing available for builders - contact our BD team in the [API group](https://t.me/OpenOceanAPI).
* **Enterprise Plan**: For higher RPS and business collaboration, submit a request [form](https://openocean.larksuite.com/share/base/form/shrusY4ukLSoP6htyoprXgZiiQc).

<mark style="color:$danger;">\*If you are using our API for arbitrage strategies and Non-EVM chains such as Solana, please reach out directly to</mark> [<mark style="color:$danger;">Telegram</mark>](https://t.me/OpenOceanAPI) <mark style="color:$danger;">or</mark> [<mark style="color:$danger;">Discord</mark>](https://discord.gg/cxK6CCYcGp) <mark style="color:$danger;">for tailored services and whitelist.</mark>

### API Referral Program

Earn rewards by referring your frens or projects to integrate OpenOcean’s powerful API — the fastest and most precise DEX aggregation solution. Whether you're a builder, partner, or community member, share us and get rewarded on every successful integration.

Start growing with OpenOcean — let’s build the future of DeFi together! 🌊\
\
To learn more about the rewards, reach out to our BD in the [API group](https://t.me/OpenOceanAPI).

### Get Started

{% content-ref url="swap-api/api-v4" %}
[api-v4](https://apis.openocean.finance/developer/apis/swap-api/api-v4)
{% endcontent-ref %}

{% content-ref url="swap-api/api-v3" %}
[api-v3](https://apis.openocean.finance/developer/apis/swap-api/api-v3)
{% endcontent-ref %}

{% content-ref url="swap-api/advanced-usage/gmx-exclusive-api" %}
[gmx-exclusive-api](https://apis.openocean.finance/developer/apis/swap-api/advanced-usage/gmx-exclusive-api)
{% endcontent-ref %}

{% content-ref url="swap-api/sdk" %}
[sdk](https://apis.openocean.finance/developer/apis/swap-api/sdk)
{% endcontent-ref %}