feat: live vault data, multi-pool aggregation and risk scoring on dashboard

[collinsezedike]

Summary

• Fetches all Stellar stablecoin pools from DeFiLlama's /pools endpoint in a single request (replaces per-pool /chart/{id} calls)
• Surfaces 6 pools across 3 protocols — Blend Capital (USDC Fixed, USDC Variable, EURC Fixed, EURC Variable), Ondo Finance (USDY), and DeFindex (USDC testnet estimate)
• Implements a risk scoring algorithm (assessPoolRisk) using TVL depth, 7-day APY volatility, and APY ceiling — pools are scored safe | caution | risky
• Jupiter-style dashboard redesign — solid dark cards (#161b22), no glow/pulse, protocol-colour-coded dots and asset badges
• Risk surfaced on the Deposit button: ghost yellow (caution) and ghost red (risky), with a hover tooltip explaining the reason
• Redis caching (1 h TTL) with graceful no-Redis fallback
• Dual timeout: 4 s DeFiLlama server-side abort + 10 s browser-side AbortSignal

Data sources

Pool	Protocol	Asset	Source	Live?
blend-usdc-fixed	Blend Capital	USDC	DeFiLlama /pools	Yes
blend-eurc-fixed	Blend Capital	EURC	DeFiLlama /pools	Yes
blend-usdc-variable	Blend Capital	USDC	DeFiLlama /pools	Yes
blend-eurc-variable	Blend Capital	EURC	DeFiLlama /pools	Yes
ondo-usdy	Ondo Finance	USDY	DeFiLlama /pools	Yes
defindex-usdc	DeFindex	USDC	Testnet estimate	Pending vault deploy

Architecture

GET /api/v1/vaults
  └─ services/vaults.ts
       ├─ getStellarStablecoinPools()   → DeFiLlama /pools (single call, filtered)
       │    └─ assessPoolRisk()         → TVL + APY volatility + APY ceiling score
       └─ getDefindexVaultInfo()        → seeded testnet estimate
  └─ Redis cache (1 h TTL)

ApiVault shape: { id, protocol, asset, name, label, apy, tvl, userBalance, riskLevel }

Risk algorithm

Three additive signals scored 0–3 each:

• TVL depth — < $10 K (+3), < $100 K (+2), < $2 M (+1)
• 7-day APY swing — > 30 % (+3), > 5 % (+2), > 1 % (+1)
• APY ceiling — > 20 % (+2), > 12 % (+1)

score ≥ 4 → risky | score ≥ 2 → caution | otherwise → safe

Test plan

• pnpm typecheck — all packages clean
• DeFiLlama /pools fetch returns and filters to the 5 known Stellar stablecoin pools
• assessPoolRisk correctly classifies pools by TVL and volatility
• Risk badge renders on Deposit button — ghost yellow for caution, ghost red for risky
• Hover tooltip explains risk reason
• Dashboard VaultList renders all 6 cards with live APY / TVL

[vercel]

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Project	Deployment	Actions	Updated (UTC)
meridian	Ready	Preview, Comment	May 19, 2026 1:06am