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 Lighter — a zero-fee zk-rollup perpetual DEX. Trade 190 perpetuals (crypto + RWA: PAXG/XAU gold, XAG silver, WTI oil, equity tickers like TSLA/AMZN/ASML) from Claude Desktop, Cursor, Hermes, or any MCP client. Three credential tiers (PUBLIC market data → READ account → TRADE signing), native on-chain stop-loss / take-profit, server-side safety caps (max-quote-USD, slippage, symbol allowlist). pip install 0xdegenmo-lighter-mcp.