Is the data official / first-hand?

Yes — it is sourced first-party from TWSE, TPEx, MOPS and TAIFEX, and every response carries source lineage. Disclosed data gaps are preserved rather than filled with inferred values.

Is there a free tier?

Yes. The free plan includes the basic datasets (excluding financial statements) with a monthly request quota, so you can test end-to-end before upgrading. Financial statements and deeper history are unlocked on paid plans.

Do you offer real-time or intraday data?

No. TW Market Data focuses on end-of-day and fundamental Taiwan data; real-time quotes, intraday bars and crypto are out of scope.

Answer

Best Taiwan stock market data API

The best Taiwan stock market data API depends on what you need. If you want free raw data and can handle parsing and gaps yourself, the official TWSE and TPEx open-data portals are the first-party source. If you want that official data cleaned, joined into a unified schema, delivered over a REST API or an MCP server, with coverage and data gaps disclosed rather than hidden, TW Market Data is built for that.

Free and official options first

Official portals (TWSE / TPEx / MOPS OpenAPI) — free and authoritative, but fragmented across endpoints, rate-limited, and without a unified schema. Best for a one-off pull when you don't mind the plumbing.
Community datasets — useful for research, with variable coverage and freshness, and usually no SLA.

Where TW Market Data fits

First-party TWSE / TPEx / MOPS / TAIFEX data in a unified schema, over REST (X-API-Key header) and an MCP server (preview), with a free tier to start.
Every response carries source lineage and preserves disclosed data gaps instead of inferring missing values.

Our honest limits

TW Market Data is a TWSE-first verified baseline: TPEx historical depth is still being expanded and we make no full-market claim. We focus on end-of-day and fundamental data — real-time quotes, intraday bars and crypto are out of scope. If your strategy needs tick or minute data or live quotes, we are not the right tool today.

Browse the dataset catalog API docs