# API Pricing & Access

OpenOcean offers flexible API access designed for both individual developers and professional partners. Whether you're building a DeFi app, wallet, or trading bot, our API provides reliable connectivity, competitive swap rates, and adaptable fee options.

#### Free Trial 

2-week free trial (under 10 RPS) is available for all builders - please contact our BD team in the [API group](https://t.me/OpenOceanAPI) or submit a [form](https://openocean.sg.larksuite.com/share/base/form/shrusY4ukLSoP6htyoprXgZiiQc).

#### Public Swap API 

The public Swap API available for all DeFi builders. It includes a default rate limit of 2 RPS and applies a standard dynamic [fee model](https://docs.openocean.finance/protocol/introduction/fees-overview) and devs or projects can also monetize their own fees by using the `referrerFee` parameter to share in swap revenue.

#### Pro Swap API

For protocol developers, arbitrage traders, and market makers who require higher rate limits or customized fee arrangements, please contact our team via the[ API group](https://openocean.sg.larksuite.com/share/base/form/shrusY4ukLSoP6htyoprXgZiiQc) or submit an[ enquiry form](https://openocean.sg.larksuite.com/share/base/form/shrusY4ukLSoP6htyoprXgZiiQc).