Arb Capital — Ajna Protocol UI
Requested Amount: 5,000,000 AJNA (~$2,500 at current market price)
Team: Arb Capital arb.capital
Live Site: ajna.arb.capital
Chains: Ethereum Mainnet, Base (expanding as subgraph support is added)
Previous Proposal: Arb Capital Meta-Vaults — Ajna-Focused Allocation Layer
Receiving Address: 0xe5355cD86E0E80769D1e29323EAd9183e10b87e4
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Summary
Arb Capital has built and is hosting a production-grade user interface for the Ajna Protocol, live now at ajna.arb.capital. The UI provides a complete lending, borrowing, pool management, and analytics experience — purpose-built to make Ajna’s powerful but complex protocol accessible to everyday DeFi users.
This grant covers the development work completed to date and ensures continued active development, maintenance, and hosting — aligning the team with the long-term success of the project.
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Why This Matters for Ajna
Alternative Third-Party Frontend → DefiScan Stage 2
This UI serves as an independent third-party frontend for the Ajna Protocol — a concrete requirement for achieving Stage 2 classification on DefiScan. Stage 2 recognition signals protocol maturity and decentralization to institutional and sophisticated DeFi users who filter by these ratings. A single “official” frontend is a centralization vector; having an independently built and hosted alternative directly strengthens Ajna’s decentralization story.
A New Access Point to the Protocol
With Summer.fi’s Ajna integration largely deprecated, access points to the protocol have narrowed. This UI provides a fresh, purpose-built entry point for new users discovering Ajna. More frontends mean more resilience — if one goes down, users still have access to their positions and the protocol.
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What We’ve Built
Core User Flows
- Lending — Simple mode auto-selects optimal buckets; advanced mode gives full bucket-level control. Deposit, withdraw, and move liquidity between buckets — all with single-click transactions via multicall batching.
- Borrowing — Borrow against collateral with smart defaults for safe positioning. Repay debt, top up collateral, and close positions. Health factor visualization makes risk immediately understandable.
- Pool Discovery — Browse, search, and filter all Ajna pools with real-time metrics. Discovery mode surfaces opportunities by APR, TVL, and utilization.
- Pool Creation — Deploy new lending pools for any ERC-20 token pair directly from the UI. No governance approval required — true to Ajna’s permissionless ethos.
- Liquidation Auctions — Monitor and participate in liquidation and reserve auctions with real-time price decay curves. Take liquidations directly from the UI.
- Positions Dashboard — Unified view of all user lending and borrowing positions across pools with health status and earnings.
Analytics & Visualization
12+ interactive chart types provide deep protocol insight:
- Bucket Depth Chart — Liquidity distribution across price buckets with LUP/HTP markers and user position indicators
- Pool Timeline — Unified TVL, rates, volume, and utilization over configurable time ranges (7D/30D/90D/All)
- Loan Health Distribution — Protocol-wide collateralization across risk bands
- Auction Price Decay Curves — Real-time Dutch auction visualization with the correct three-phase decay model per the Ajna whitepaper
- Borrower Position Charts — Debt over time, collateral vs debt, health history, and principal vs interest decomposition
- Lender Position Charts — LP value history, earnings composition, and position history
- Pool Activity & Rate History — Historical transaction volume and interest rate evolution
UX Design
Every design decision prioritizes simplicity — users should never need to understand bucket math, index numbers, or protocol internals:
- Smart defaults — Auto-selected buckets, pre-filled safe amounts, zero protocol knowledge required for the default path
- One action, one button — Multi-step operations (approve + deposit, multi-bucket withdrawals) batched into single transactions via multicall
- Outcome-focused — Users see “~4.2% APR at this risk level,” not “bucket index 3542.” Clear safe/caution/at-risk indicators instead of raw health factors
- Error recovery — Validation errors include inline fix buttons (“Use max”, “Use minimum”) that auto-fill correct values
- Transaction confirmations — Summary modal with amounts, fees, projected health changes, and warnings before every wallet interaction
- Progressive disclosure — Essential info upfront; bucket breakdowns, fees, and parameters available on expand for power users
- Full mobile support — Responsive card layouts and touch-friendly interactions on every page
- Light and dark themes — Full dual-theme support with CSS variable design tokens
Technical Depth
Building on Ajna required solving protocol-specific challenges beyond standard DeFi UI patterns:
- Multicall3 batching — All on-chain reads bundled for efficiency and same-block data consistency
- Post-borrow LUP projection — Health factor calculations use projected LUP after debt is added, preventing transactions that would revert
- Three-phase auction decay — Faithful whitepaper implementation, not a naive exponential approximation
- Compound interest interpolation — Smooth modeling between on-chain events with progressive error correction
- On-chain bucket reads for withdrawals — Live `PoolInfoUtils.bucketInfo()` calls instead of potentially stale subgraph data
- Security headers — CSP, X-Frame-Options, input validation on all API routes
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Relationship to Arb Capital Vaults
Our [meta-vaults]( Arb Capital Meta-Vaults — Ajna-Focused Allocation Layer ) are approved and live at [arb.capital](https://arb.capital). Users can deposit into Ajna-focused allocation strategies today while we scale.
The UI at ajna.arb.capital complements the vaults: vaults provide automated allocation for passive users, while the UI provides direct protocol access for users who want full control over pools, buckets, and parameters. Together, they serve the full spectrum of Ajna users.
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Sustainability & Use of Funds
At the current AJNA price of ~$0.0005, the 5,000,000 AJNA request represents approximately $2,500 — a modest ask relative to the scope of work delivered.
Why this is sustainable for us: Arb Capital’s primary growth alignment comes through our vault offerings, which generate revenue as Ajna TVL grows. We’re also actively working with other chains to expand Ajna (and the UI) to new ecosystems, and may introduce revenue features such as Featured Pool placements in the future. The AJNA grant isn’t our sole funding mechanism — it aligns the team’s token holdings with protocol success while covering infrastructure costs.
The grant ensures:
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Continued development — New features, multi-chain expansion, analytics enhancements
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Ongoing maintenance — Bug fixes, protocol upgrade support, subgraph migrations
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Hosting & infrastructure — Servers, domain, CDN, subgraph query costs
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Team alignment — AJNA-denominated compensation aligns the team’s incentives directly with the protocol’s success
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Roadmap
Planned improvements include:
- Lender PnL / position performance dashboards
- Additional chain deployments in partnership with L2/L3 ecosystems
- Debt-at-risk curves and borrower concentration analytics
- Rate vs utilization visualization
- Touch and keyboard accessibility for charts
- Bulk operations (multi-bucket rebalancing)
- Full accessibility audit (ARIA, screen reader, high-contrast)
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*The UI is live now — try it at [ajna.arb.capital](https://ajna.arb.capital). We welcome questions and feedback from the community.*