SAC Capital
View live ↗What it is
An autonomous AI agent that trades US equities and prediction markets on paper, then anchors every decision on the Mantle blockchain as a deterministic bytes32 commitment before execution.
Anyone can open the verifier frontend and confirm: the on-chain hash matches the agent's actual reasoning, confidence score, and risk parameters. No black box.
Why it exists
AI trading agents make decisions nobody can verify. The reasoning is hidden, the process is opaque, and you have to take the operator's word for it. SAC Capital inverts that — every decision is hashed and committed on-chain before it executes, creating an immutable audit trail.
How it works
The agent runs a multi-stage pipeline: an event screener (Haiku) filters candidates, a bull-thesis analyst and a challenger (Sonnet) argue it out, an auditor scores the debate, and a risk kernel sizes the position using fractional Kelly. The canonical decision JSON is then SHA-256 hashed and submitted to the AgentDecisionRegistry contract on Mantle Sepolia. The Alpaca paper order fires after.
A public Vercel frontend shows every commitment hash, the original reasoning, and the verified match status.
Current status
Live. Contract deployed at 0x1d1fFbC1b5F5E0471f8e8E28eAf007dd24EB4887 on Mantle. Frontend at sapa-fund.vercel.app. Running paper trades on Alpaca. Submitted to the Turing Test Hackathon 2026 (AI Alpha & Data track, Mirana Ventures sponsor).
Paper-only until ≥100 resolved forward trades with positive ROI and Brier scores beating market-implied.
Stack
Python 3.12, Claude API (Haiku + Sonnet), Alpaca Markets, Mantle (Solidity/Foundry), Vercel, React/Vite verifier frontend.