Prime brokerage
for crypto-assets

Pioneering infrastructure enables funds to deploy capital
across multiple exchanges, while maintaining independent custody

Connect to

Independent custody connected to multiple exchanges

To prevent malicious attacks against a Fund’s infrastructure, and to prevent an Investment Manager being forced to withdraw the Fund’s assets to an unauthorised, potentially criminal, external wallet location, an Independent Custodian with technological and business process solutions is required to mitigate risk

  • Connect directly to exchanges using APIs
  • Add funds to exchange accounts directly in the Copper Platform
  • External withdrawals require Multi-sig authorisation
  • Read-only access for Fund Administrators
  • Full reporting through the Copper Platform
  • Initiate, sign, and verify transactions completely offline

Easy balance

Use the Copper Platform to seamlessly move funds from secure offline cold storage to any of your whitelisted exchange accounts

Suitable for

With a 10 minute SLA, withdrawals to and from exchanges happen when you need them to, not when is convenient for your custodian


Investment managers do not have access to private keys or exchange credentials, ensuring withdrawals only go to fund-approved locations

How it works

Copper Unlimited

A client Seed is created and broken in two for safekeeping. A private key is then broken into three encrypted pieces and distributed to fund-trusted 3rd parties. The public address is retained for whitelisting purposes

Exchange Accounts

The Fund’s investment manager will onboard with all of the exchanges required to facilitate their trading strategies. They then set the only non-exchange whitelisted withdrawal address as their Copper custody account

Walled Garden

The fund then turns over login credentials to Copper, and the investment manager is now able to trade on and between the Exchanges, and can send Digital Assets to and from the Copper Unlimited vault

"The Copper Walled Garden is the first independent end-to-end custody solution for funds that trade on multiple exchanges. Institutional investors can now invest in crypto funds, confident that their funds are always controlled by the custodian, mitigating the risk of a self-custodying fund manager."

— Michael Hall, Fund Manager, Nickel Asset Management