⚡ Powered by TypeSafe AI System One (Jev)

Assess credibility before you read.

Real-time truth and credibility judgments for your X (Twitter) timeline.
Is it an official announcement, personal opinion, or unconfirmed leak? Gain immediate clarity before diving into the content.

In Review on Chrome Web Store ⏳ (Pending Review / v0.2.7) View Live Demo ↓
⚠️ Important: Requires a TypeSafe AI API Key (Private Beta). Get or view your key here →
Timeline Badge Preview
Click the sample badges below to see how trueX classifies posts on your timeline.
📢 Official Fact (94%)
💭 Personal Opinion
⚡ Breaking News (82%)
🟡 Rumor / Leak (12%)
🎭 Satire / Falsehood (4%)
🏛️ National Astronomical Observatory @pr_naoj • 15m
[Research Discovery] Using the ultra-wide prime focus camera on the Subaru Telescope, astronomers have discovered three new candidate protoclusters 13 billion light-years away. Published in Astrophysical Journal.

5 Core Features of trueX

Practical browser protection designed to navigate the information landscape

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5 Claim Type Classifications
Categorizes posts into Official Fact, Personal Opinion, Breaking News, Rumor/Leak, or Satire/Hoax with distinct color badges inserted above the tweet body.
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Viewport-Only Lazy Evaluation
Powered by IntersectionObserver, only evaluating tweets that scroll into view. If you fast-scroll past tweets, evaluation is automatically cancelled to eliminate wasted API calls.
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Label-Based Text Folding
Toggle off unverified rumor or satire categories in the popup. Tweets matching those categories fold away their text and images automatically until clicked.
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Local Timeline Statistics
Track total verified posts, category breakdown percentages, cache hit rate, and average latency directly in your browser. Review "Today" and "All Time" metrics anytime.
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Direct Transmission & Zero Developer Tracking
Verification requests go directly from your device to TypeSafe AI without passing through or being stored on developer servers. Settings and statistics stay strictly in your local sandbox.
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Full Bilingual Support
Badges, popovers, settings, and documentation seamlessly support both Japanese and English, categorizing global tweets accurately.

How to Setup (API Key)

Get started in 3 quick steps

1
Generate API Key
Sign in to TypeSafe AI Console and copy your API key (currently Private Beta).
2
Open trueX Settings
Click the trueX icon on your Chrome toolbar to open the settings popup panel.
3
Save & Verify
Paste your key into the "TypeSafe AI API Key" input and click "Save API Key". Once status turns to "● Active", you're all set!
💡 Realistic Expectations & Practical Mindset
- trueX is NOT an infallible "truth oracle" or fact-checking censor.
- TypeSafe AI (Jev) returns statistical probabilities based on its world knowledge. Breaking real-time news or specialized niche events may be assigned lower initial probability even if true.
- The goal of trueX is not blind belief in an AI score, but giving you an intellectual pause to assess credibility and verify primary sources before reading.