Legal · Data licenses
Twinkle Hub passes each source's original license metadata to your client unchanged — we don't silently relicense or strip terms. This page lists every license that appears across Twinkle Hub's coverage.
Each MCP tool response carries a license field in its metadata (e.g. OGDL-Taiwan-1.0). Your agent / app sees it as-is and can decide whether to cite, attribute, or filter. We don't strip the field.
Licenses across the 52,960 datasets currently indexed (source: data.gov.tw)
OGDL-Taiwan-1.0
52,919 datasets · 99.92%
The standard license for Taiwan government open data, issued by NDC. Commercial use, redistribution, and adaptation all allowed. Source attribution is requested. No real friction for AI integrations.
CC-BY-4.0
16 datasets · 0.03%
Standard international CC license. Commercial use, redistribution, and adaptation allowed; you must retain the original author / source / license link.
CC0-1.0
15 datasets · 0.03%
Provider waives all rights — effectively public domain. Commercial use, redistribution, adaptation are unrestricted; attribution isn't strictly required (still recommended).
CC-BY-SA-4.0
8 datasets · 0.02%
Commercial use, redistribution, adaptation allowed, but derivatives must be released under the same CC BY-SA license. Take care when ingesting into a publicly-released LLM dataset.
OFL-1.1
2 datasets · 0.00%
Font-specific license. Commercial use and modification allowed, but a modified font cannot be sold by itself — it must accompany an app / document. Rarely applies to datasets.
Tools for other jurisdictions (Hong Kong, Japan, South Korea, the United States, Singapore, the United Kingdom) carry the source government's own open-data licence. The licence is whatever the source declares — we neither rewrite nor strip it: dataset queries return that dataset's own license field, and corpus-level declarations are in the table below.
| Country / region | Licence | Commercial | Attribution | Special terms |
|---|---|---|---|---|
| Taiwan | Open Government Data License v1.0OGDL-Taiwan-1.0 | Commercial use OK | Attribution required | — |
| Hong Kong | DATA.GOV.HK Terms and ConditionsHK-DATA-GOV-TC | Commercial use OK | Attribution required | Not a CC licence. Commercial use is free of charge, but the terms carry an indemnification obligation — confirm before commercial use. Attribution must name the Government, the relevant organisations and DATA.GOV.HK. Where data includes third-party copyright, that rights holder's terms also apply. |
| Japan | Government of Japan Standard Terms of Use v2.0jp-gojstou-2.0 | Commercial use OK | Attribution required | An individual dataset may carry its own licence; where it does, that one governs. |
| South Korea | Korea Open Government Licence (KOGL) · type varies per datasetKOGL | Depends on the type | Attribution required | ⚠ KOGL has four types and the type varies per dataset: Type 2 prohibits commercial use and Type 4 prohibits derivative works. Confirm the type of the specific dataset before commercial use — it cannot be assumed commercially usable. |
| United States | Federal public domain (17 U.S.C. §105)US-PD-17USC105 | Commercial use OK | Not required (customary) | Federal government works are in the public domain. Some services (FRED, for instance) redistribute third-party series, which remain under their original rights holders' terms. |
| Singapore | Singapore Open Data Licence v1.0sg-odl-v1 | Commercial use OK | Attribution required | An individual dataset may carry its own licence; where it does, that one governs. |
| United Kingdom | Open Government Licence v3.0OGL-UK-3.0 | Commercial use OK | Attribution required | Around 40,000 datasets carry no licence field and default to OGL v3 under the portal's terms; where an individual dataset states its own, that one governs. |
Which license each source publishes under. Onboarded sources list their primary license; exploring sources will publish terms when we integrate them.
Open Government Data License, Taiwan, v1.0 (OGDL-Taiwan-1.0)
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This page summarises license terms; it's not legal advice. For strict compliance scenarios (resale, regulated use, cross-border) defer to the original license text and consult support if needed.
