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], [2]… markers and verifies each link before showing it.Where to start?
| You want… | It's here | Cost |
|---|---|---|
| The saint of the day, the readings, the calendar — in your app or site | Free APIs | Free, no key |
| The “Saint of the day” card on your site, without coding | Widget | Free, no account |
| The CatéGPT chat on your website | Widget · CMS plugins | Site key |
| Sourced answers generated inside your application | Keyed API | API key, prepaid |
One minute to try — the feast of the day, without a key:
curl "https://categpt.chat/api/v1/feast?locale=en"
Every API page embeds a “try it” console that calls the real API from your browser, and the OpenAPI specification imports into Postman or Insomnia.
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 modes — quick (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.
- Saint of the day & liturgical calendar — permanent daily pages (biography, Mass readings, Liturgy of the Hours), monthly calendar, RSS feed and a free daily card you can embed on your site. The calendar covers both forms of the rite: Novus Ordo Missae (official AELF texts) and Vetus Ordo Missae, 1960 calendar (texts from the Divinum Officium project).
- 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.
- APIs — free for the liturgical calendar, keyed for sourced answers.
- Widget & plugins — add the chat to any site (see the widget and the CMS plugins).
How it works
- Question — the user writes their question in their language.
- Document search — the engine queries the official sources first (vatican.va, clerus.org…).
- Writing — an answer is written in the chosen mode and level.
- References — citations are extracted, verified (the link exists and points to a trusted source), then numbered.
- Suggestions — three “go further” questions are offered.
Reading levels
| Level | For whom | Style |
|---|---|---|
| Child | Youngest catechism | Very simple, vivid |
| Teen | Youth ministry, schools | Clear, concrete |
| Catechesis | Parish groups | Pedagogical |
| General | Everyone (default) | Accessible and precise |
| Academic | Students, formation | Developed, argued |
| Priest | Clergy, theologians | Technical, 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
Accounts
| Type | Access |
|---|---|
| Anonymous visitor | 3 free questions, then registration |
| Registered account | Unlimited chat, library, history, sharing, API, integration page |
| Administrator | Dashboards (traffic, costs, feedback, integrations) |
Privacy
See the privacy policy.
Pricing
- End users: free. Donations support the project.
- Liturgical calendar APIs & card: free.
- Answer API & chat 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, the CMS plugins or the APIs.
How do I get an integration key? Sign in and open the Embed the plugin page, then request access.