AfterFees

500+ transparent financial methods calculated from raw statements, not third-party endpoints.

Open-source SEC EDGAR toolkit — 13 tools, 7 prompts, every filing type. No API key required.

Write and backtest trading strategies with AKQuant: API lookup, strategy checks, backtest runs

Search and fetch AKShare financial data (stocks, futures, funds, macro) from AI assistants

Open-source China A-share data lake for AI agents: prices, fundamentals, flows, events, PIT.

Real-time & historical market data: forex, stocks, crypto, indices, metals, K-line, quotes