How SPA Works
The mechanics behind systematic, risk-gated DeFi yield management.
What SPA Does
SPA is an autonomous yield optimizer for onchain stablecoins. It runs daily scans of whitelisted DeFi lending protocols, applies a deterministic risk gate to every proposed allocation, and rebalances between protocols when drift exceeds a threshold. There is no discretionary human override in the execution path. There is no LLM in the execution path.
What SPA Does Not Do
Daily APY Scan
Every day, SPA executes a full scan of supported protocols to collect current yield data.
Data Sources
Primary
DeFiLlama Yields API
Aggregated APY/TVL across all supported pools
On-Chain
Protocol adapters (read-only)
Direct contract reads for position verification
Oracles
Chainlink / Pyth price feeds
Collateral checks for Max Yield strategy
Logging
All data sources logged per cycle
Full audit trail in timestamped JSON
Protocol Adapters
Each supported protocol has a dedicated read-only adapter. Adapters normalize APY, TVL, and pool metadata into a standard format for the allocation engine. No write access at scan stage.
CURRENT ADAPTER REGISTRY — 10+ adapters
RiskPolicy v1.0 Parameters
A deterministic, hard-coded gate. No human, no AI, no strategy can override these parameters.
| Parameter | Value |
|---|---|
| TVL floor | $500M minimum |
| Per-protocol cap | 25% of portfolio |
| Tier 1 minimum allocation | 60% |
| Cash buffer | 5% |
| APY lower bound | 2% (avoid dust yields) |
| APY upper bound | 40% (sanity cap) |
| Monthly drawdown kill switch | −5% |
| Max single-asset concentration | 40% |
Risk-Gated Rebalancing
Strategy Tournament
Multiple strategies compete on risk-adjusted performance. The tournament ensures only the best-performing approach gets capital allocation.
Participants
Multiple strategies run in parallel on paper
Scoring
Risk-adjusted APY (Sharpe-weighted)
Promotion
Top performers promoted to paper track record
Current Leader
Core strategy — current tournament winner
Strategy Profiles
SPA offers three strategy profiles: Preserve, Core, and Max Yield. Each has a distinct risk/return target and validation status.
Paper tracked since June 10, 2026. Verified performance data available on dashboard.
Target profile defined. Paper tracking not yet started. No historical performance data.
Supported Assets
SPA operates exclusively with stablecoins. Minimum asset set for private MVP:
USDT
- TRC-20 (Tron)
- ERC-20 (Ethereum)
USDC
- ERC-20 (Ethereum)
Compounding & Logging
GoLiveChecker
26 criteria must pass before live deployment.
Failing criteria visible in Dashboard → GoLiveChecker tab.
Go-live target: August 1, 2026
Versioning & Changelog
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