Taiwan Stock Market Data API

TW Market Data is a TWSE-first Taiwan stock market data API covering daily prices, MOPS monthly revenue, financial statements, three-major-institutional-investor flows, valuations and technical indicators. Every response carries source lineage and preserves disclosed data gaps rather than inferring missing values.

Built for developers and quant researchers: query first-party Taiwan market data from your code over a REST API, or connect it to AI agents over an MCP server (preview).

Coverage includes TWSE daily prices since 2004-02-11 (5.2 million rows across 1,682 stocks, plus 311 stocks that have since stopped trading, for survivorship-bias-free backtests), TPEx daily prices since 1994, and monthly revenue since 2010.

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What you get

Official first-party data — sourced from TWSE, TPEx, MOPS and TAIFEX, with coverage and data gaps disclosed, not hidden.
Taiwan-specific fundamentals US vendors don't carry — monthly revenue since 2010 (a monthly-frequency signal) and daily three-major-institutional-investor (三大法人) flow.
Survivorship-bias-free — full price history is retained for 311 stocks that have stopped trading, so point-in-time backtests aren't biased toward today's survivors.
Built for AI agents — machine-readable docs, OpenAPI, and an MCP server (preview). Start free.

Built for honest, reproducible research

TW Market Data is a TWSE-first verified baseline. Every response carries source lineage and preserves disclosed data gaps rather than inferring missing values, so your research stays reproducible. TPEx historical depth is still being expanded, and we make no full-market claim.

What we don't provide (by design)

Real-time quotes, intraday bars and crypto are out of scope. We focus on being a trustworthy source of end-of-day and fundamental Taiwan data.