Nib is not on the Chrome Web Store yet, so you install it the developer way: download the folder, turn on one setting, and point Chrome at it. Nothing here requires knowing how to code.
On the GitHub page, click the green Code button, then Download ZIP. Unzip it somewhere you will not accidentally delete, like Documents. Not Downloads, since the extension breaks if the folder moves.
If you use git, clone it instead:
git clone https://github.com/puria1234/collegeboard-nexus
Paste the address for your browser into the address bar:
Chrome chrome://extensions Edge edge://extensions Brave brave://extensions
The toggle sits in the top right corner of that page. Without it, the Load unpacked button in the next step stays hidden.
Click Load unpacked and select the project folder. Pick the folder that contains manifest.json directly. A common mistake is selecting the outer folder from the ZIP, which holds another folder inside it.
Nib should now appear in your extensions list. Click the puzzle piece icon in the toolbar and pin Nib so the icon is always visible.
Only needed for the AI study tools. Extracting questions and the Answer Hider both work without a key.
Sign in at console.anthropic.com and create an API key under API Keys. Copy it when it appears, since the console will not show it to you again.
Open the popup, click the gear icon in the top right, and paste the key into Settings. It is saved in your browser's local storage and is never sent anywhere except to Anthropic when you generate something.
Claude API keys are billed per use, separately from a Claude subscription. Generating flashcards for one unit costs a fraction of a cent, but set a spending limit in the console so a runaway loop cannot surprise you.
Go to an AP Classroom assignment or quiz that shows multiple-choice questions. The popup only activates on apclassroom.collegeboard.org, so on any other site the buttons stay greyed out.
Click the Nib icon and choose your course from the dropdown. This is required before extraction, because it tells Nib how to label the export.
Flip the toggle to cover the correct and incorrect markers so a graded review page works as fresh practice. A small floating panel also appears on the page itself if you want to toggle it without reopening the popup.
Hit Extract questions. Nib shows you what it found, including any questions whose answer choices are images rather than text. If the count looks right, click Download to save a .txt.
Under AI study tools, pick a mode: similar questions, flashcards, or a concept summary. Choose a count where it applies, then click Generate. Output appears in the popup for you to copy.
apclassroom.collegeboard.org.manifest.json, select that inner one instead.anthropic-dangerous-direct-browser-access header set to true. If you built from source and stripped it out, add it back.