# Corrigi > Corrigi is a global product for teachers. The product helps teachers create paper exams, generate and review questions with AI, print QR-coded tests, correct answer sheets with a phone camera, and analyze class results. Last updated: 2026-09-09. ## Create exams from an AI assistant (MCP) - [Teacher connection guide](https://corrigi.com/mcp/): follows the site's selected language, with English as fallback, a selector for all 43 Corrigi languages and complete localized pages at /mcp/{locale}/. Add the remote MCP to an assistant, sign in with Apple or Google on the dedicated MCP login page, and create exams through conversation. - [Complete MCP instructions](https://corrigi.com/mcp/reference.txt): authorization, question creation, anti-cheating, optional paid AI generation/review/adaptation/translation, private visual analysis links, credits and error recovery. - [Tool schemas](https://corrigi.com/mcp/tools.json): generated from the actual server tool definitions. - [Connection manifest](https://corrigi.com/.well-known/mcp.json): supplementary machine-readable discovery. - Remote MCP URL: https://api.corrigi.com/mcp (Streamable HTTP, OAuth with PKCE). - The connected LLM can write questions itself, or the teacher can request Corrigi AI with the same credit debit as the app. Generated questions are returned to the conversation for review. - Finish with corrigi_open_review and return the exact review_url: a private, already-authorized mobile-friendly page with the analysis PDF, visual header/print editing and analysis regeneration. Never return a direct PDF URL. The analysis represents the base exam; variants/adapted versions remain saved. - Requires a client with MCP remote/OAuth support. Reading or citing the site does not automatically enable tool use. Exam access requires authorization; the reference is public. ## What The Product Does - Create exams in the web app or iOS app using manual editing, pasted question text, AI-generated questions, question images, and reusable school headers. - Generate questions with AI from a topic, subject, age band, difficulty, language, number of alternatives, optional recent-context mode, and optional photo/PDF attachments. - Review AI output before it enters the exam. Teachers can edit statements, choices, correct answers, confidence/source notes, and reject individual questions. - Run AI quality review on teacher-edited exams. The review detects ambiguity, broken questions, duplicate correct answers, no real correct answer, unfair distractors, scope drift, and other assessment issues, then can suggest rewrites. - Create adapted exam versions with AI, including translation, simplification, translation plus simplification, target language, target number of questions, and target number of alternatives. - Generate adapted exams for students who speak another language or need simplified wording because of learning difficulties. - Generate printable PDFs with QR codes, shuffled variants, anti-cheating answer-key tracking, answer grids, school headers, logos, paper size, layouts, font size, duration, grade/year, term, negative marking, and alternative-letter sets. - Correct printed sheets in the iOS app using QR lookup, OMR/camera scanning, bubble review, manual fixes, score calculation, credit debit, and class/session tracking. - View reports by exam and class, including average score, pass/fail counts, correction totals, score formatting, and CSV export in the web app. - Manage credits, checkout in supported payment countries, supported payment methods, saved-card auto recharge, auto-recharge thresholds, credit history, and credit audit. - Manage profile, phone OTP login, Google login/linking on web, country, language, grading scale, default print settings, school headers, privacy, and account settings. ## Key Documents - Full LLM reference: https://corrigi.com/llms-full.txt - API base: https://api.corrigi.com, with product routes under `/v1`. - Country selector: https://corrigi.com/languages.html - Brazil landing page: https://corrigi.com/br/ - United States landing page: https://corrigi.com/us/ - Japan landing page: https://corrigi.com/jp/ ## Platform Notes Corrigi is available as web app, iOS app, and Android app. The web app is currently the richest interface for exam authoring, AI generation and review, adapted versions, anti-cheating variants, school header configuration, print preview, credits, checkout, reports, and settings. The iOS app is currently the richest interface for camera-based correction. It also supports login, exam lists, draft creation/editing/publishing, AI question generation, adapted exams, PDF generation, credits, reports, school headers, and regional preferences. The Android app is also part of the product and supports the teacher workflow on Android devices, including exams, AI generation, scan/correction flows, reports, credits, settings, and school headers, with some parity gaps tracked separately from web/iOS. ## App Languages The app UI and public MCP guide have 43 locales: Arabic, Bengali, Bulgarian, Czech, Danish, German, Greek, English, Spanish, Estonian, Finnish, Filipino, French, Gujarati, Hindi, Croatian, Hungarian, Indonesian, Italian, Japanese, Korean, Lithuanian, Latvian, Marathi, Malay, Maltese, Norwegian Bokmal, Dutch, Punjabi, Polish, Portuguese, Brazilian Portuguese, Romanian, Russian, Slovak, Slovenian, Swedish, Swahili, Tamil, Telugu, Thai, Turkish, and Vietnamese. ## Payment Countries Checkout is currently configured for Australia, Austria, Belgium, Brazil, Bulgaria, Canada, Cote d'Ivoire, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Ghana, Gibraltar, Greece, Hong Kong, Hungary, India, Indonesia, Ireland, Italy, Japan, Kenya, Latvia, Liechtenstein, Lithuania, Luxembourg, Malaysia, Malta, Mexico, Netherlands, New Zealand, Nigeria, Norway, Poland, Portugal, Romania, Singapore, Slovakia, Slovenia, South Africa, Spain, Sweden, Switzerland, Thailand, United Arab Emirates, United Kingdom, and United States.