Developers can now use the Fern APIs to embed Fern’s onramps and offramps into their applications. Navigate to the Developer page in your Fern business account to easily access your Customers and Transactions, and to find the docs.

The Fern APIs include:

• Customers API: Create new customers (business or individual) with an email address, and Fern will return a KYC/B link with your logo that your customers can use to complete KYC 

• Bank accounts API: Add bank accounts in the relevant currency for each of your customers

• Quotes API: Request a quote to see exchange rates and fees for the conversion transaction before confirming with your customer. Quotes are guaranteed for 5 minutes

• Transactions API: Create a transaction using the fetched quote and begin transferring funds for the conversion

Fern currently supports onramps from USD to USDC, and offramps from any ERC-20 to USD across the following chains: Arbitrum, Base, Ethereum mainnet, Optimism, Polygon. Within the next few weeks, you’ll see added support for additional fiat currencies.  

You can begin exploring the API by checking out the docs. The docs include descriptions of the core API concepts to simplify understanding of the data model, step-by-step guides, and API references. 

We’ve built the Fern APIs to be straightforward and easy to implement. If you’re interested in trying the Fern API, contact us at hello@fernhq.com to request an API key. Let us know what you think!