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.
VietQR payments for AI agents in Vietnam. Agents generate a VietQR code, send it to the user, and auto-confirm settlement from the bank feed. Non-custodial — money flows directly to the merchant's bank account, never held by the platform. pip install agentpay-vn, ships an MCP server for Claude Desktop/Code.