CatéGPT

CatéGPT documentation

CatéGPT is a Catholic documentary assistant: it answers questions about the faith using the official texts of the Church and provides verifiable references for every answer.

1 · Question2 · Sources3 · Answer4 · References
From a question to a sourced, verified answer.
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In short. You ask a question; CatéGPT searches the official sources, writes an answer at the chosen level, inserts [1], [2]… markers and verifies each link before showing it.

What CatéGPT does

  • Sourced answers — every key statement links to a source via a numbered marker tied to a list of verified references.
  • Two answer modesquick (concise) and academic (in-depth).
  • Six reading levels — the answer adapts to the audience (see the table below).
  • 7 languages — French, English, German, Italian, Spanish, Portuguese, Polish; auto-detected.
  • Library — save and organize answers into folders.
  • Sharing — publish an answer as a read-only public link.
  • History & search — find your conversations and search within them.
  • API — integrate answers into your applications (see the API documentation).
  • Widget & plugins — add the chat to any site (see the widget documentation).

How it works

  1. Question — the user writes their question in their language.
  2. Document search — the engine queries the official sources first (vatican.va, clerus.org…).
  3. Writing — an answer is written in the chosen mode and level.
  4. References — citations are extracted, verified (the link exists and points to a trusted source), then numbered.
  5. Suggestions — three “go further” questions are offered.
CatéGPT — Catholic assistantWhat does the Catechism say about hope?Sources: [1] vatican.va · [2] cath.chAsk your question…Powered by CatéGPT
The CatéGPT assistant: a clear answer, with its sources.

Reading levels

LevelFor whomStyle
ChildYoungest catechismVery simple, vivid
TeenYouth ministry, schoolsClear, concrete
CatechesisParish groupsPedagogical
GeneralEveryone (default)Accessible and precise
AcademicStudents, formationDeveloped, argued
PriestClergy, theologiansTechnical, exhaustive

Sources

Answers favour the Church’s official corpus:

  • Sacred Scripture (Bible)
  • Catechism of the Catholic Church and its Compendium
  • Ecumenical councils
  • Papal magisterium (encyclicals, exhortations…)
  • Canon law
  • Social doctrine of the Church
  • Fathers and Doctors of the Church
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Reference links are verified automatically before display: a reference marked as verified points to a page that is actually reachable on a trusted source.

Accounts

TypeAccess
Anonymous visitor3 free questions, then registration
Registered accountUnlimited chat, library, history, sharing, API, integration page
AdministratorDashboards (traffic, costs, feedback, integrations)

Privacy

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CatéGPT applies the legal minimum (Swiss FADP + EU GDPR). Anonymous questions are kept pseudonymised: the IP address is never stored in clear, only a salted hash. Hosting: Vercel (app) and Supabase (auth + data).

See the privacy policy.

Pricing

  • End users: free. Donations support the project.
  • API & widget: usage-based billing (prepaid or subscription).

FAQ

Are the answers reliable? They draw on the official texts and cite their sources, which you can check. CatéGPT is a helper tool: when in doubt, refer to a priest or theologian.

Which languages? Seven: fr, en, de, it, es, pt, pl. Ask in any of them.

Can I add it to my site? Yes — see the widget documentation or the API.

How do I get an integration key? Sign in and open the Embed the plugin page, then request access.

Go further

Documentation · CatéGPT