Stock Market Data API for China A-Shares

Chinese investors and traders lack a unified, easy-to-use API for accessing A-share market data (pricing, historical data, news, technical indicators). A SaaS API service that aggregates data from multiple sources and provides simple REST endpoints for retail traders, fintech apps, and investment platforms.

Chinese retail trading volumes remain enormous, and the 2024–2025 push by Beijing to attract domestic investors back into equities has renewed developer interest in programmatic A-share access. Wind and Tushare are the closest substitutes — Wind is expensive and enterprise-focused, Tushare's free tier is unreliable and the paid tiers are opaque — leaving a real gap for a clean, developer-friendly REST layer. The $2k–10k/mo revenue band is plausible given that fintech apps and quant retail traders will pay $50–200/mo for reliable data with good uptime and docs, but you need meaningful volume of subscribers to hit the top of that range, which takes time. The biggest risk is data licensing: sourcing real-time or even delayed A-share data legally at a cost structure that allows margin is genuinely hard, and getting cut off by an upstream provider or hit with a compliance issue in China's tightly regulated financial data market could kill the business overnight.