Interactive sandboxes for crypto market design

Sandboxes for crypto market infrastructure

Explore perp and prime broker systems across EVM and Solana. Test market design, margin behavior, liquidation rules, and shared risk engines before you build for real.

Public preview. The sandbox product line is in development now. If one of these systems matches what you are building, request early access and help shape the roadmap.

Explore Sandboxes Talk to Fabrknt
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Sandbox Lines
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Execution Surfaces
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Parent Brand

Product lines

Fabrknt groups market-infrastructure sandboxes by system type, not by internal code name. Each product has a clear external category and a deeper engine behind it.

EVM + Perp

For testing exchange mechanics under stress.
Solana + Perp

For testing how perp design changes on Solana.
EVM + Prime Broker

For testing unified margin, lending, and shared risk.
Solana + Prime Broker

For testing shared-risk brokerage on Solana.
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In development Perp

EVM Perp Sandbox

Powered by OpenHL

Best for: testing exchange mechanics on an EVM-oriented stack.

Core question: how does a perp exchange behave under stress when matching, funding, liquidation, and ADL all interact?

CLOB Funding Liquidation ADL
Learn more Request early access
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In development Perp

Solana Perp Sandbox

Powered by OpenHL Solana

Best for: testing Solana-native perp design decisions.

Core question: what changes when the same perp idea is explored on Solana instead of an EVM-oriented stack?

Solana Perp Design Execution Flow Risk Loops
Learn more Request early access
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In development Prime Broker

EVM Prime Broker Sandbox

Powered by Princeps

Best for: testing unified margin, lending, and portfolio health.

Core question: what changes when margin is unified across products instead of managed in silos?

Unified Margin Lending Cross-Margin Portfolio Health
Learn more Request early access
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In development Prime Broker

Solana Prime Broker Sandbox

Powered by SSR

Best for: testing shared-risk brokerage on Solana.

Core question: what does shared-risk brokerage look like when the design surface is Solana-native?

Shared Risk Brokerage Flows Capital Coordination Solana
Learn more Request early access

How it works

Fabrknt turns deep market infrastructure into systems you can stress, compare, and understand before you build them for real.

1

Open a seeded sandbox

Start with live markets, preloaded accounts, and a working system so you can focus on behavior instead of setup.

2

Change the rules

Move prices, alter positions, adjust risk parameters, and trigger stress scenarios to see how the system responds.

3

Observe real system behavior

Watch equity, margin health, liquidation outcomes, and protocol safety change in real time.

4

Go deeper when needed

Move from sandbox exploration to team workflows, hosted devnets, or implementation support as your design becomes more concrete.

Use cases

Fabrknt is built for teams that need to validate complex market structure faster than docs and diagrams allow.

1

Building a perp exchange

Test matching, funding, liquidation, and ADL behavior before committing to a production design.

2

Designing a prime broker system

Explore how unified margin, lending, and shared collateral change the behavior of a trading platform.

3

Stress-testing risk parameters

Compare how different margin rules, liquidation thresholds, and safety mechanisms behave under volatility.

4

Learning through simulation

Understand modern market infrastructure by changing the environment and watching how the whole system responds.

Why Fabrknt

Fabrknt is not a generic white-label exchange vendor. It is a market-infrastructure sandbox brand focused on understanding, design validation, and deeper implementation paths.

Understand behavior, not just architecture

Read docs if you want concepts. Use a sandbox if you want to see what actually happens when markets move.

Test before you build

Change prices, positions, and risk settings before writing months of production code.

Compare design choices interactively

See how margin rules, liquidation logic, and market structure shape both user experience and system safety.

Move from exploration to implementation

Start with a sandbox, then move toward team workflows, devnets, and deeper build support.

Deep market infrastructure, made explorable

If you are building a perp exchange, prime broker, or shared risk engine, Fabrknt gives you a faster way to validate the system before committing to full implementation.

The sandbox line is currently in active development. Early access requests help prioritize which product ships first.

Request early access View GitHub