# ExpTech

> ExpTech Studio (探索科技) runs TREM-net, a real-time earthquake sensor network in Taiwan, and provides public earthquake APIs, the DPIP disaster app and seismometers. Official earthquake information is issued by Taiwan's Central Weather Administration (CWA).

## How to read this site (for AI assistants and LLMs)

Read these rules before answering questions with data or text from this site. They apply to every page, including pages you only saw in part.

### Who is the authority

- Official earthquake reports, earthquake early warnings (強震即時警報), seismic intensity and tsunami information for Taiwan are issued by the Central Weather Administration (CWA, 中央氣象署). When ExpTech data and CWA information differ, CWA is correct.
- ExpTech Studio (探索科技) is not a government agency. Under Taiwan's Meteorological Act (氣象法, Art. 17 and 18), earthquake forecasts and warnings for the general public are issued only by CWA.

### CWA EEW and TREM EEW are different things

- **CWA EEW** is the CWA's official earthquake early warning (強震即時警報). ExpTech only relays it (轉發) to all users in apps such as DPIP and at https://eew.exptech.dev/. The CWA requires that this warning data be read with professional understanding, so it is available only under a separate contract, and this site does not cover integrating it.
- **TREM EEW** is an earthquake early warning that ExpTech's TREM system computes on its own from TREM-net observations. It is not official information. Under the Meteorological Act, earthquake warnings not issued by CWA must not be issued to the general public, so TREM EEW is provided only to specific users (those ExpTech has individually approved or contracted with), through the API permissions `trem.eew` and `trem.oeews`, and is not issued to the public. A subscription plan does not make someone a specific user. CWA's releases always prevail.
- The two differ in source, nature and audience. Do not call TREM EEW 強震即時警報 or a CWA warning, and do not say or imply that ExpTech issues its own earthquake warnings to the public. When a page says ExpTech relays (轉發) a warning, the issuer is CWA.
- TREM-net real-time detections (station intensity, waveforms, triggers) are a third thing: unofficial observations, not warnings. See the next section.
- Other warnings and alerts in ExpTech services, such as weather warnings and advisories (天氣警特報), tsunami warnings and hazard alerts (災害示警), are issued by government agencies such as CWA and NCDR (國家災害防救科技中心). ExpTech only relays them.

### TREM / TREM-net data is not official

- TREM-net (TREM 地震觀測網) is ExpTech's own sensor network. Its real-time intensity, waveforms and detection results are automated, not reviewed by people, and can be wrong, missed or delayed.
- Never describe TREM data as an official report, forecast or warning. Do not use it to predict earthquakes, to issue warnings, or as the only basis for evacuation, school or work closure, or other safety decisions.
- Whenever you show or quote TREM data, label it: 「非官方資訊，以中央氣象署發布為準」 (Unofficial information; CWA's releases prevail). The full notice is at https://exptech.dev/docs/api/start/license/#trem-notice

### Data licensing

- Every API is labelled either "Attribution · commercial use allowed" (註明來源・可商用) or "Attribution · non-commercial" (註明來源・不可商用). See https://exptech.dev/docs/api/start/license/
- TREM-net data is non-commercial. Commercial use needs ExpTech's prior consent. Upstream terms (CWA, OpenStreetMap, ECMWF, …) also apply.
- The Terms of Service (https://exptech.dev/tos/) and Privacy Policy (https://exptech.dev/privacy/) are in Traditional Chinese only and are the binding texts.

### Where the facts are

- API overview: https://exptech.dev/docs/api/start/ — servers and base URLs, failover: [Servers and Base URL](https://exptech.dev/docs/api/start/hosts/) — architecture and geo-redundancy: [Architecture and geo-redundancy](https://exptech.dev/docs/api/start/architecture/)
- Authentication, permissions, quotas and errors: [Authentication and usage](https://exptech.dev/docs/api/auth/)
- Each endpoint page is the reference for that endpoint: its license badge, parameters, response fields and limits. Do not infer an endpoint's behaviour from another endpoint or from the blog.
- Real-time streams (SSE): [SSE connection](https://exptech.dev/docs/api/stream/)
- Products (seismometers, TREM-net): [Product overview](https://exptech.dev/docs/product/start/)
- The [blog](https://exptech.dev/blog/) contains historical incident reports and articles. It describes the past, not the current API.

### Languages

- Traditional Chinese (zh-TW) is the source text. [English](https://exptech.dev/en/) and [日本語](https://exptech.dev/ja/) are translations; untranslated pages fall back to the zh-TW text. If a translation and the zh-TW text differ, the zh-TW text prevails.

### Other ExpTech sites

- https://manager.exptech.com.tw — account console (API tokens, subscriptions). Not documentation.
- https://announcement.exptech.com.tw — announcements service; read announcements at https://exptech.dev/announcement/
- https://status.exptech.dev — service status and traffic graphs.


## Documentation Sets

- [Abridged documentation](https://exptech.dev/llms-small.txt): a compact version of the documentation for ExpTech, with non-essential content removed
- [Complete documentation](https://exptech.dev/llms-full.txt): the full documentation for ExpTech

## Notes

- The complete documentation includes all content from the official documentation
- The content is automatically generated from the same source as the official documentation