Get Started

ON1ON Custody

Getting started with ON1ON Custody is easy. We provide a simple yet powerful API that allows you to integrate cryptocurrency capabilities into your existing systems and applications. Without needing to become a blockchain expert or handle the technical complexities, you can connect to major blockchains, store and transfer crypto assets, and more.

Our platform handles all the blockchain integrations, security, and transaction processing in the background. You just make simple API calls to deposit, withdraw, transfer or query crypto balances and transactions.

Within minutes, you can be up and running with a secure and robust crypto asset system built right into your product offering. Let us handle the blockchain so you can focus on your business.

Before you start

Make sure you have an account with us. To get a root account, contact our business team.

Sandbox environment

We make it easy to test drive our crypto asset custody platform before going into production. Our sandbox environment allows you to fully integrate with our API and build out your cryptocurrency features without touching live assets or blockchains. In the sandbox, you can simulate depositing, withdrawing, transferring and querying crypto balances using test assets on test blockchains, so you know your integration works as intended before deploying to your users.

Our sandbox mirrors the same functionality as our live production environment, so you can replicate real-world user scenarios and edge cases. Play around with our sandbox as much as you'd like - there are unlimited free test assets and costs only test tokens.

When you're ready to go live, activating your production keys is as simple as flipping a switch. Our sandbox ensures a seamless transition from testing to live transactions.