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.
LLM-agent-native backtest framework for SHFE daily futures research. 23 MCP tools (strategy validation, scaffolding, indicator catalog, error-code lookup), 22 in-package skills, 32 catalogued error codes, working strategy templates. pip install echolon then claude mcp add -s user echolon -- echolon-mcp.
Browse, recommend, and buy authentic Chinese tea from hou-tea.com using USDC stablecoin via the x402 protocol. First commerce MCP that ships real on-chain payment intents (delegated to wallet MCPs like @coinbase/payments-mcp). 8 tools: browse / recommend / explain / compare / health-filter / payment / order-status / agent-card.