API & MCP

wyper.io — Fact-Check

Fact-check any page, selection or video with dual-AI — a 1–10 truth score with real sources. Runs only when you ask.

As of July 2026, wyper.io — Fact-Check has users in the Productivity category.

Usersno change0%
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.5.12
Manifest V3

History

1 snapshots

Tracking since Jul 23, 2026.

Not enough history yet for this metric — the chart fills in as we collect more snapshots.
View as table
DateUsersRatingReviewsVersion
Jul 23, 20261.5.12
Now1.5.12

Permissions & access

Permissions
storageactiveTabscriptingcontextMenus
Host access
https://api.wyper.io/*

Screenshots

wyper.io — Fact-Check screenshot 1wyper.io — Fact-Check screenshot 2wyper.io — Fact-Check screenshot 3wyper.io — Fact-Check screenshot 4wyper.io — Fact-Check screenshot 5

About

Know what's true -  with evidence. Select any claim, or point it at a page or video, and wyper.io Fact-Check returns a clear 1–10 truth score backed by real, linkable sources.

• Two independent AIs cross-check each claim (Pro) -  you see when they agree or disagree.
• "Why this score" - see the reasoning trail behind the number, not just the verdict.
• Re-check with a different source set on demand -  you stay in control.
• Full Spectrum (Pro): steelmanned counter-views, source diversity and open questions - kept evidence-based.
• Works on any page, any text selection, and on videos (reads the captions).
• Proof Library (Pro): a private, tamper-proof archive of your verifications.

Privacy-first: it only checks when you ask - nothing runs in the background. The text you select is sent to be verified, and personal data (emails, phone numbers, card numbers) is stripped locally before anything leaves your browser.

Built for everyday readers and for high-stakes work - journalists, researchers, legal, and anyone who needs verification they can cite. A tool that SUPPORTS your judgment, it does not replace it.

Technical

Version
1.5.12
Manifest
V3
Size
111KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
cfmfghjlfoilambbajgacdngkpfgjjkb
Developer ID
u57797a624c136135a77bbdb703562ec5
Developer Email
[email protected]
Created
Jul 22, 2026
Last Updated (Store)
Jul 22, 2026
Last Scraped
Jul 23, 2026
Website

Data sourced from the Chrome Web Store · last verified Jul 23, 2026.