BlockFills has been servicing the retail exchange space since 2018.

Since 2018, BlockFills has provided institutional clients with flexible digital asset liquidity solutions. We offer white-glove service when needed, while our advanced tech stack enables efficient, streamlined operations – giving clients the perfect balance of personalized support and automated efficiency.

BlockFills offers a cohesive suite of products and services that are designed to service institutions in the digital asset space.

While all BlockFills clients have access to our core services, our Exchange clients enjoy additional benefits and personalized services, including the following:

Bridge / Liquidity Hub Connectivity

  • We are connected to numerous popular technology bridges, such as those employed by brokerages in the FX space. We can also make a bespoke connection to your API or allow you to connect to ours.

OTC Options* & Bespoke Hedging Strategies

  • We have one of the most prolific options desk in the space. Have inventory management needs, need to lay off risk, or hedge your balance sheet? For qualified clients*, BlockFills will price virtually any BTC, ETH, or SOL option spread or structure.

Perpetual Swaps*

  • BlockFills has partnered with its London-based, FCA regulated affiliate, Basis Capital Markets UK Limited (“Basis”), in the development of a cash-settled perpetual swap product that offers sweeping advantages over what is found on most CEXs. Hedge your balance sheet or client flow by leaning on our industry-leading liquidity. Leverage available.

Collateralized Lending & Borrowing

  • Have inventory management or fiat needs? BlockFills is actively involved the overcollateralized lending market and has a growing suite of products that feature interesting terms for exchange clients who require customized solutions.

Exchange Use Case:

“ABC Crypto Exchange”

Client Problem:

ABC Crypto Exchange is growing quickly as retail adoption in its jurisdiction skyrockets. It has increasing liquidity needs, and is pressured to offer products and services that differentiate it from its much larger peers.

Our Solution:

Onboard at BlockFills


  • Connect to BlockFills’ FIX or Websocket API and broadcast our executable spot and perpetual swap* liquidity into the exchange’s client-facing order book.


  • Reduce operational lift; trade data is piped directly to the exchange’s back office via REST API connections.


  • Lean on the BlockFills Perpetual Swap* markets to hedge client order flow without having to double margin in physical crypto.


  • Engage in collateralized lending and borrowing deals to satisfy inventory management and liquidity needs.


  • Enjoy the peace of mind associated with Tier-1 onshore banking, industry-leading wallet infrastructure, credit, and post-trade settlement.

By completing the form below, I agree that either I or the organization that I am authorized to represent meet the above criteria.