QuantMesh

QuantMesh is a high-frequency financial data marketplace purpose-built for the autonomous agentic economy. It enables AI trading agents to buy and sell quantitative signals momentum, volatility, sentiment, and arbitrage spreads using real-time, sub-cent USDC micropayments settled on-chain via the x402 protocol on Arc. The core insight is simple: a $0.002 trading signal costs $1.50 in gas on Ethereum, making the business model mathematically impossible at -74,900% margin. On Arc with Circle Nanopayments, the same signal settles for $0.00001 in gas yielding a 99.5% net margin. This isn't optimization; it's the difference between possible and impossible. The system has three components. A Provider node (FastAPI + x402 middleware) serves four real signal endpoints backed by live yfinance market data, each protected behind the HTTP 402 payment wall. A Consumer Agent runs an autonomous 3-second loop, using a stochastic strategy engine to select signals, sign EIP-3009 USDC authorizations, and purchase data all without human intervention. A real-time Dashboard (React + Next.js) streams every transaction, margin calculation, and agent decision over WebSocket, providing institutional-grade observability. Every interaction follows the x402 payment flow: the agent requests a signal, receives a 402 challenge, signs a USDC payment offline, retries with the payment header, and the facilitator settles on-chain. The provider delivers the signal data alongside a verifiable transaction hash. No API keys. No subscriptions. Pure machine-to-machine commerce. In our proof-of-concept stress test, QuantMesh achieved 13,910 transactions per minute at a settlement frequency of 231 tx/second, with a total gas overhead of $0.0006 across 60+ transactions compared to $90 on Ethereum for the same workload. This validates x402 and Arc as the infrastructure layer for internet-native data markets.