Side-by-side comparison of two Model Context Protocol servers — install paths, tools, quality signals, and directory engagement so you can pick the right one for Claude, Cursor, and other MCP clients.
Open-source x402 micropayments stack for MCP. Pay-per-tool-call USDC settlement on Solana via the first open-source self-hostable facilitator (no x402.org dependency). Includes TypeScript SDK, CLI, paywall middleware, hosted devnet endpoint, and a live Claude Opus demo. npm install @agenticpay/sdk
MCP server for the FLOX trading systems framework. 30 tools to run backtests, scaffold strategies, validate for lookahead bias, place orders, query PnL via Claude/Cursor. C++23 core with Python/Node/Codon/QuickJS strategy bindings. Same code from backtest to live (CcxtBroker or native connectors). Install: pip install flox-mcp.