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.
Official Longbridge brokerage MCP — 110 tools for US/HK real-time quotes, options, trading, fundamentals, analyst ratings, calendars, price alerts, DCA plans, portfolio analytics and community sharelists. Hosted at https://openapi.longbridge.com/mcp with OAuth 2.1 via RFC 9728.