Magisterium AI
Magisterium AI answers Catholic teaching questions with cited sources from 31,000+ Church documents. See 2026 pricing, new features, and best use cases.
About Magisterium AI
What is Magisterium AI (2026 update)
Magisterium AI is an answer engine built specifically for questions about Catholic teaching, drawing on a database of more than 31,000 Church documents and citing its sources in every response. It is designed for Catholics, clergy, students, and researchers who want doctrinally grounded answers instead of general-purpose chatbot output that can misstate Church teaching.
What is new in 2026
Magisterium AI’s Spring 2026 update added several new reference sources, including Spiritual Statistics by diocese and country, diocesan financial records, an ecclesiastical directory with over 20,000 entries covering dioceses, bishops, cathedrals, and basilicas, and a structured Saints Database of more than 12,000 canonized, beatified, venerable figures, and martyrs. The update also introduced Pastoral Intelligence, which lets dioceses study aggregated, anonymous usage insights to better understand the needs of their local Church.
On the technical side, Magisterium AI added MCP connectors so its source-grounded Catholic knowledge base can be queried directly from within Claude and ChatGPT, and it now supports the A2A (Agent-to-Agent) protocol so AI agents such as Google Gemini can query its knowledge base directly. The platform reports usage from more than 165 countries in over 50 languages. Separately, Magisterium AI lowered its Pro subscription price in 2026, cutting the monthly plan from $8.99 to $3.99 and the annual plan from $79.00 to $29.99.
Key features
- Answer engine trained on over 31,000 official Catholic Church documents with inline citations
- Saints Database covering more than 12,000 canonized, beatified, and venerable figures
- Ecclesiastical directory with over 20,000 entries on dioceses, bishops, and historical sites
- MCP connectors for use inside Claude and ChatGPT, plus A2A protocol support for AI agents
- Support for 50+ languages and mobile apps on Google Play
- Pastoral Intelligence dashboards for dioceses to review anonymized usage insights
Pricing in 2026
Magisterium AI offers a free tier with a capped number of prompts, a discounted individual Pro plan, and separate organization pricing for teams and dioceses.
| Plan | Price | What you get |
|---|---|---|
| Free | Free | Up to 60 prompts, source-cited answers |
| Pro (monthly) | $3.99/month | Unlimited prompts, full source library access |
| Pro (annual) | $29.99/year (renews at $15.00 with 50% loyalty discount) | Unlimited prompts, full source library access, lower ongoing renewal price |
| Organization | $8.09/user/month (10% off annual) | Pro features for teams; custom pricing for over 100 users |
Who should use it
Magisterium AI is built for practicing Catholics who want quick, sourced answers to questions about doctrine, canon law, or Church history, and for clergy, catechists, and students who need citations they can verify rather than an AI’s paraphrase. Dioceses and Catholic organizations can use the Organization plan and Pastoral Intelligence features to understand how their community is using the tool. Developers building Catholic-focused apps can tap into the knowledge base through the MCP connectors or A2A protocol instead of building their own document corpus.
Limitations and alternatives
Magisterium AI is scoped narrowly to Catholic teaching and Church documents, so it is not a general-purpose research or chatbot tool, and users outside a Catholic context will not find it useful. The free plan’s 60-prompt cap will be reached quickly by anyone doing serious research, pushing most regular users toward the Pro plan. As with any AI tool citing historical and doctrinal documents, users should still verify citations against primary sources for anything used in formal teaching or publication, check the official site for the current document list.
Alternatives include general AI assistants like ChatGPT or Claude for broad research (without the same doctrinal grounding), New Advent’s Catholic Encyclopedia and Summa Theologica databases for manual reference lookup, and Verbum or Logos Bible Software for structured theological and biblical study tools.
Frequently asked questions
Is Magisterium AI free to use?
Yes, the free plan allows up to 60 prompts with source-cited answers before you need to upgrade to Pro for unlimited use.
How much does Magisterium AI Pro cost in 2026?
Pro costs $3.99/month or $29.99/year, down from $8.99/month and $79.00/year after a 2026 price cut, and annual subscribers get a discounted renewal rate the following year.
What sources does Magisterium AI use?
It draws on more than 31,000 official Catholic Church documents, plus a Saints Database and an ecclesiastical directory of over 20,000 entries added in the Spring 2026 update.
Can I use Magisterium AI inside ChatGPT or Claude?
Yes, MCP connectors let you query Magisterium AI's knowledge base directly from within Claude and ChatGPT, and it also supports the A2A protocol for AI agents.
Information last verified: September 2026.
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