QMA - Quant Memory Agent
QMA is a pay-per-call marketplace for quantitative market intelligence. A FastAPI backend (backend/app, qma_engine.py) computes analysis with KMeans regime clustering and Ledoit-Wolf covariance estimation, and sells each report per query. The backend issues an invoice bound to provider, tier, and query snapshot; a TypeScript Arc Gateway sidecar (arc_gateway/server.ts) settles it via Circle Gateway/x402 on Arc Testnet; and every required payment leg is verified before an entitlement and a short-lived access token unlock the exact purchased report. A budget-driven CLI agent in agents/ runs the discover, compare, buy, and unlock loop autonomously, with a marketplace UI in frontend/.
No pain no gain
1 (Solo) — Hoàn Lại Văn(penny)
QMA is an agent-native marketplace for quantitative market intelligence, where humans and autonomous agents discover, purchase, and unlock evidence-backed market reports using USDC payments on Arc Testnet.