Docs

Editions.

The whole engine is free, and stays free. Ashforde OÜ sustains it with a commercial licence, SetuHQ Pro and custom studies, not with a feature gate. There are no prices on this site: every paid route starts with a message.

Compare the editions

Read across a row to compare the three.

	Open coreFree · AGPL-3.0 or commercial licence	SetuHQ ProAvailable under contract · in development	Custom studyPaid work, done for you
Why it matters	Anyone can search a TESS light curve, see every check behind a verdict and repeat the numbers. The open core is the whole engine, and everything on this site runs on it.	Institutions need what a public repository cannot give: scale, privacy, packaging and accountability. Pro sells those, never better science: every Pro number would come from the open engine, which anyone can rerun for free.	When the question is yours but the time is not: Ashforde OÜ runs the open engine on your question and hands back a result you can rerun with the free code.
Who it is for	Researchers, students and reviewers who need results they can rerun and cite Contributors who run a sweep and send it in Developers who wire SetuHQ into code or an AI assistant over MCP	Follow-up and mission teams that keep work private until release AI providers and research groups that want a reviewer measured on the frozen benchmark Universities, planetariums and app makers	Teams that need a sector sweep or a candidate dossier Instrument teams that want a yield study
What is included	The search, the Sentinels and Probes, vetting and the transit fit The frozen real-TOI benchmark and the public leaderboard The sweep, the MCP server, this site and the stand-alone case files, plates and reports Flares, pulsations and public CHEOPS light curves (CHEOPS data under ESA's terms)	Pro Calibrate in development: a calibration certificate for an AI reviewer on the frozen 662-TOI benchmark Pro Workspace in development: private target lists, embargoed candidates, team roles and an audit trail Pro Sweeps in development: hosted searches over sectors or target lists, with the customer's own AI provider key; results come back as open contribution bundles Pro Follow-up in development: a follow-up packet per candidate: an ExoFOP-style export, an ephemeris with its uncertainty, and when the target is observable from the customer's telescopes Education & Dome in development: classroom vetting exercises and a planetarium edition Commercial licence & SDK in development: the engine inside a closed product, with a stable API	A sector sweep, a candidate dossier or a yield study for a proposed instrument The open engine as it is: no new code, every figure labelled as on this site Candidates stay candidates: a study is never a confirmation of a planet
Terms	Free under the AGPL-3.0-only, with no feature gate. The same code is also offered under a commercial licence from Ashforde OÜ.	Available under contract, as a proprietary overlay that depends on the open core and never forks it. No free feature moves behind a licence. Pro is in development: nothing in this column is live yet.	Scoped to your question and delivered under contract.
How to start	Get started	Request an evaluation Write to `[email protected]` or open your mail app	Request a study Write to `[email protected]` or open your mail app

Pro is in development. Every Pro capability above is planned and labelled "in development"; none is live, and none changes the science: Pro adds no detection, vetting or fitting method, and nothing it produces is a confirmation of a planet. What each one would build on is in docs/PRO.md.

Licensing: one engine, two licences

The same code under either licence; nothing is held back from either.

GNU AGPL-3.0-only. Use, study, change and share SetuHQ for free. If you run a changed version as a network service, you offer its users the source.
A commercial licence from Ashforde OÜ, for use the AGPL does not suit: SetuHQ inside a closed product, or a hosted service without the source offer. It starts with a message.

Write to [email protected] or open your mail app

SetuHQ's own data, benchmark, leaderboard data and paper are under CC BY 4.0; third-party data keeps its own terms. The plain-language guide: LICENSING.md.

CHEOPS data stay outside Pro and the commercial licence

SetuHQ reads public CHEOPS light curves. Those data, and every feature derived from them, stay under ESA's terms (CC BY-NC 3.0 IGO): they are never part of SetuHQ Pro or of the commercial licence, and any commercial use needs ESA's prior written authorisation ([email protected]). SetuHQ is independent and is not affiliated with, endorsed by or operated on behalf of ESA, the CHEOPS mission or the CHEOPS Consortium. The CHEOPS terms ›