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.
Minimal MCP server (250 lines TS) for ERC-8004 agent discovery + x402 payment. Three tools: findagentsbyskill (via 8004scan public API), getagentcard, callagentwithpayment using Coinbase's official x402-fetch. Direct EOA signing — no smart account, no bundler, no relay. Works with Claude Code, OpenClaw, Cursor, Cline. USDC on Base/Ethereum + testnets, MIT.
Tastyworks API integration to handle trading activities on Tastytrade