If you've ever wished you could ask a question about Catholic teaching and get an answer grounded in actual Church documents — not internet opinions — Magisterium AI was built for exactly that.^1 Created by Longbeard, a company founded in 2015 in Rome by Matthew Harvey Sanders (a former seminarian and soldier), this Catholic AI answer engine draws exclusively from a curated library of over 29,000 texts, including 23,000+ official Magisterial documents and 2,300+ scholarly works from the Church Fathers and Doctors like Aquinas and Augustine.^2
Every response comes with verifiable citations linking directly to the source text, so you never have to take the AI's word for it — you can check the original document yourself.^3 The app supports 50+ languages and is used by Catholics in over 165 countries for everything from homily prep and catechism lessons to personal questions about faith and morals.^4
Beyond the chat experience, Magisterium AI offers "Holy Widgets" — guided prayers like the Rosary, Stations of the Cross, confession guides, daily Mass readings, and the Saint of the Day.^5 A Learn Mode provides guided learning paths with quizzes and flashcards, and Canvas Mode helps users draft prayers, reflections, or letters infused with Catholic wisdom.^5
Why Christians Love It"It's so easy to use and saves so much time when I have a question about the faith. My wife is not Catholic and frequently has questions... now I can do it in seconds and have all the references right there. It has changed my life!"^4
"My first two questions were the two subjects this life-long senior Catholic could never get his head around: intercession of the saints and what appears to be Mary worship. Both answers were thoughtful, nuanced and insightful. They changed my thinking."^4
"It has been an amazing help within my OCIA classes where I am the only one in my class. I finally have something that will answer all of my questions based on scripture and history."^4
Notable- Partnered with Hallow, the #1 Catholic prayer app, to provide AI-powered answers within the Hallow experience^6
- Collaborates with Pontifical Universities in Rome to digitize rare manuscripts and historical documents through the "Alexandria Digitization Hub"^2
- Also available via WhatsApp, and offers an API & MCP for developers building on Catholic content^5
- CEO Matthew Harvey Sanders has a researcher on staff who is a Catholic priest from the Archdiocese of Malta^7
- The team includes a Director of Content with Vatican media experience^7
