What is Nado?

Nado is an all-in-one CLOB DEX on Ink L2, built for high-performance, self-custodial trading. It supports spot and perpetual markets with unified margin, allowing collateral to flow across positions and net exposure in real-time for stronger capital efficiency.

Its architecture combines an off-chain sequencer for fast order book execution with an on-chain risk engine and Ink L2 settlement, designed to deliver a CEX-like experience while keeping onchain guarantees.

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The Challenge

From the outset, Nado designed its launch to be controlled and intentional. The goal was to ensure the exchange could handle high trading volumes without compromising performance, while also introducing a layer of exclusivity that gamified early access.

Access to the platform was restricted to invited users, turning distribution itself into a growth mechanism. This approach required a secure, production-grade system capable of managing permissions, tracking referrals, and scaling safely under real trading activity.

They needed to:

• Design a fully whitelabeled, invite-only onboarding flow embedded directly into the exchange, making controlled access a native part of the product experience.
  
  
• Build a secure invite code lifecycle system, including generation, ownership assignment, validation logic, and correct wallet association at signup
  
  
• Implement a permissioned distribution layer, ensuring only approved addresses could issue access, with configurable limits and safe updates over time.

Without the right system in place, controlled distribution would have become a recurring engineering and operational burden, making it difficult to scale access predictably while keeping the team focused on the exchange’s core trading infrastructure

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The Solution

Rather than allocating engineering resources to design, secure, and maintain a custom invite architecture, Nado chose to rely on Fuul as the backend layer powering controlled distribution directly within its app.

This approach allowed the team to move quickly, preserve full product ownership through a white-labeled experience, and keep its engineers focused on the exchange’s matching engine and risk infrastructure.

With Fuul, Nado:

• Deployed a whitelabeled invite-code system with native verification and wallet-based permissions to ensure only approved users can distribute access
  
  
• Made access earned, not given: users unlocked one invite for every $250,000 in trading volume (capped at 100), tying distribution rights directly to exchange activity. This aligned user incentives with platform revenue, as users increased volume to unlock invites, access scaled organically through high-activity participants.
  
  
• Iterated on access thresholds dynamically, allowing the team to scale the product rollout by fine-tuning eligibility requirements based on live growth data
  

By linking distribution rights to trading activity, Nado aligned user incentives with platform revenue. As users increased volume to unlock additional invites, access scaled organically through high-activity participants, reinforcing both liquidity and engagement.

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Results

By executing a smart invite-code strategy from the beginning, Nado created a growth loop that kept building on itself.
The invite codes sparked curiosity in the community, driving early interest and participation, while tying them to trading activity and revenue made the system self-reinforcing. This shows how a well-planned approach early on can both engage users and turn their activity into measurable growth over time.

• Perpetual trading volume increased by ~4,900% in ~8 weeks
  
  
• Daily fees increased by ~5,040% in ~8 weeks
  
  
• Referred fees generated reached ~$5.7M in ~12.7 weeks
  
  
• Daily retention increased by ~2,910% in ~7 weeks

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Conclusion

By using invite codes and eligibility controls, Nado scaled access progressively while keeping distribution intentional and controlled.

Fuul enabled Nado to ship this distribution and referral attribution layer without pulling focus from the core exchange, and to turn access expansion into a measurable motion tied to trading activity.