Work through Century Tech faster
Century Solver plugs directly into Century Tech and uses Claude, DeepSeek and Groq AI to help you answer questions — multiple choice, drag-and-drop, exact answers, and more.
Trusted by hundreds of students this year
Which biome stores the most carbon per unit area?
Everything you need, nothing you don't
A lightweight Tampermonkey userscript. Installs in seconds and works automatically on Century Tech.
Three AI models
Routes between Claude, DeepSeek and Groq, picking the best model for accuracy or speed on every question.
All question types
Handles multiple choice, exact answer, drag-and-drop and multi-select questions automatically.
Licence locked
HWID-bound licence keys keep your access secure. Activated once on your device.
Clean interface
A tidy floating panel that sits neatly over Century's own interface, light and dark mode included.
Always up to date
The script updates itself. Once it's set up, there's nothing to maintain.
Subject focused
Prompts are tuned for Century Tech content and perform well across every major subject.
See the difference for yourself
Test the free Lite version first. It works, but it's limited. The full Century Solver is a different level.
Century Solver Lite
A bare-bones taster. Slower, limited, and missing most of what makes the full version useful.
- Multiple choice and exact answer questions
- Drag-and-drop matching (beta, often breaks)
- No image question support, relies on unreliable OCR
- Groq only — no Claude or DeepSeek, lower accuracy
- Manual answer copying for some question types
- You have to supply your own API key
Century Solver
The proper version. Solves every question type with Claude and DeepSeek accuracy, including image-based questions.
- Solves every question type on Century Tech
- Claude and DeepSeek for far more accurate answers
- Reads images directly, no OCR fallback
- Fully automatic, no manual copying
- Auto-updates, active development, email support
- API keys included — nothing to set up
Install Lite in 4 steps
Get the free version running so you can see the limitations for yourself before committing.
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1
Install Tampermonkey
Add the Tampermonkey extension to your browser from the Chrome Web Store, Firefox Add-ons or Edge Add-ons. It's the userscript manager that runs the script.
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2
Install the script
Click the Greasy Fork link above. Hit the green Install button on the page and confirm in the Tampermonkey popup.
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3
Get a free Groq API key
Sign up at console.groq.com (no payment details needed), go to API Keys, click Create API Key, and copy the key starting with gsk_.
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4
Paste and go
Open app.century.tech. The Lite panel appears top-right. Paste your Groq key, click Save, then Start. See for yourself why the full version is worth it.
What students say
Honest feedback from people using Century Solver every week.
Set it up in a couple of minutes and it's been flawless since. The Claude answers are genuinely accurate.
Switching to DeepSeek made the harder science questions much more reliable. Worth every penny.
Tried the free Lite version first, then upgraded the same day. The full one is on another level.
Simple, one-time access
No subscriptions. Pay once, use for the academic year.
Full access, one payment
Every feature is unlocked from day one. No upsells, no usage limits, no surprise charges.
- Licence key delivered instantly by email
- Email support included
- Secure checkout handled by Shopify
Activate once on your device and you're ready to go.
- Full academic-year access
- Claude, DeepSeek & Groq routing
- All question types covered
- Auto-updates included
- 1 device (HWID locked)
- Email support
Common questions
Ready to work through Century faster?
Get your licence and start answering questions with Claude, DeepSeek and Groq in under two minutes.