Users encounter paywalled scientific papers they want to read. The extension automates finding free/open-access PDF versions by extracting the DOI and querying multiple academic repositories.

User navigates to an academic paper page → clicks the PaperPanda toolbar icon → extension extracts the DOI from the page using multiple detection methods (meta tags, data attributes, publisher-specific patterns) → opens the configured paper search URL (default: annas-archive.gd/scidb/) with the DOI appended → user can download the PDF from the resulting page

Target users: Students / Researchers / Academics / Anyone needing access to scientific papers

Cannot verify whether the destination service (paperpanda.app or annas-archive.gd) requires login or has paid features, as those are external services not bundled in the extension
Background.js is entirely commented out — no active background logic beyond the service worker registration

Monetization

No paid features detected

No paid features, subscriptions, or payment mechanisms found in the extension source code. No premium/upgrade/payment/stripe/license/billing keywords exist in any JS or HTML files. The 'paywall' keyword hits are from the store description describing the problem the extension solves (papers locked behind paywalls), not the extension gating features. The 'pro' keyword hits are false positives from German/French words containing 'pro' (e.g., 'probieren', 'problème'). The extension is fully free with all features accessible.

Confidence: 95
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension requires no login to use its core workflow. It extracts DOIs from the current academic page via meta tags/data attributes and opens them in a new tab via a configurable open-access search URL. All settings are stored locally via chrome.storage.local/sync with no authentication. The only 'login' keyword hits in the source are from the store description describing the problem ("Save time navigating paywalls, logins and redirects"), not a login requirement.

Permission risk

High-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

扩展能力较强：storage、activeTab、scripting
主机权限覆盖范围较宽

Publisher

PaperPanda

Independent publisher

Email: [email protected]
Phone: --
Address: Blackfriars Road London SE1 8PB GB

Public contact fields are shown above. Developer portfolio pages are available on paid accounts.

View developer portfolio

Permissions

Host access