What is Accountable?

Accountable is the verification layer for private credit and onchain yield. Its ecosystem combines a Data Verification Network (DVN) that produces live cryptographic proofs of reserves, a Vault-as-a-Service (VaaS) that lets teams deploy pre-audited yield vaults in days, and a YieldApp that surfaces yield opportunities backed by verified borrowers.

The YieldApp, live on Monad, is the first yield marketplace built on top of the DVN. Every opportunity, from borrower vaults to structured credit strategies, is backed by live, cryptographically verifiable data, designed for allocators who want yield they don't have to guess on.

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The Challenge

The infrastructure was already working. Partner vaults were DVN-verified and listed, and the YieldApp's leverage looping turned base vault yields into materially higher returns for depositors while generating revenue for Accountable on the leveraged exposure. More leveraged TVL meant more revenue, which made the marketplace a more compelling distribution channel for new VaaS partners. 

They needed to:

• Attract depositors at scale: Accountable needed a growth mechanic that pulled users into the YieldApp and lifted TVL as new vaults came online.
  
  
• Stay composable as the marketplace grew: The YieldApp was designed to list more partner vaults over time, and whatever Accountable built on top of it had to absorb new integrations without spinning up a separate stack per vault.
  
  
• Recognize early user loyalty: Accountable needed a way to differentiate early users from new depositors.

The Solution

Rather than allocating months of engineering to build the entire incentives stack in-house, Accountable chose Fuul as the layer that handled it. This let the team keep building the core infrastructure and onboarding new partners while shipping the ACC Points program in time for the YieldApp's launch on Monad.

With Fuul, Accountable:

• Incentivized the entire marketplace with ACC Points: Every vault in the YieldApp was tied to the points program, so on top of the extra yield depositors already captured through looping strategies, they also earned ACC Points.
  
  
• Onboarded new partner vaults in minutes: Integrating a new partner vault into the ACC Points program took minutes via the Fuul dashboard, so every new VaaS listing plugged into the same pipeline.
  
  
• Rewarded prior engagement with tiered multipliers: Accountable used Fuul's Tiers & Multipliers to apply a four-tier model with best-in-tier logic and additive stacking, giving early users an extra reward on top of the baseline ACC Points accrual

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The Strategy

Accountable decided to design two different ACC Points distribution models and apply each one to a specific set of vaults, so the program could match the behavior they wanted to drive on every surface of the marketplace.

Linear Accrual

On most YieldApp vaults, ACC accrued at a flat rate per USD held at the daily snapshot. Accrual scaled linearly with capital and stayed predictable for depositors: more size meant more ACC, with no dilution from other participants. This model worked well for vaults where the goal was steady TVL growth and a clear, replicable accrual formula.

Share-Based Pool Distribution
On specific vaults, Accountable applied a different mechanic: a fixed daily pool of ACC split pro-rata across every depositor's share of the vault.

A user holding 5% of the vault's TVL on a given day captured 5% of the day's pool. Every depositor earned in direct proportion to the size of their position relative to the total.

Results

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Accountable launched the ACC Points program in December, 2025. Within weeks, the impact was visible across every metric::

• TVL increased by ~14400% in ~10 weeks
  
  
• Unique users grew by 1300% in ~17 weeks
  
  
• Revenue grew by 2000% in 8 weeks.

Conclusion

By routing the entire points program through Fuul, Accountable rewarded its earliest contributors and incentivized new deposits on Monad without allocating engineering time to daily snapshots, multiplier logic, or dashboard UI. The DVN and VaaS roadmap stayed untouched.

For infrastructure protocols, this pattern matters. Incentive programs are often necessary for bootstrapping TVL, but they are rarely the core competency of a team building verification primitives or vault infrastructure. The protocols that can run a credible, multi-tier points program without building it themselves preserve engineering time for the work that actually differentiates them.

Today, Fuul powers the ACC Points program across every YieldApp vault, and every new partner protocol or ecosystem vault is another integration away from becoming a reward surface for depositors.

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