Update 11/19/2025

The Project Mirador Chrome extension is now live on the Chrome Web Store!

Install here: https://chromewebstore.google.com/detail/anehbncclhojcaihgeoebennaccpeegn?utm_source=item-share-cb

Or search "Project Mirador" on the Chrome Store

This repository is the codebase for Project Mirador and the Stelthar API.

Project Mirador provides real-time, government-backed data fact-checking for a better, more transparent version of the internet.

Disinformation erodes public trust, and traditional fact-checking is slow, inriliable, or both. Stelthar's fact-checking API verifies or argues claims by comparing claim validity against official government data sources.

Highlight any text, and our browser extension provides an evidence-based verdict, a confidence score, and links to the primary sources. This reduces verification time from hours to seconds, empowering users to challenge misinformation with auditable proof.

• Real-time claim verification against official government data sources
• Evidence-based verdicts: Supported, Contradicted, or Inconclusive
• Confidence scoring that reflects data coverage and match quality
• Direct links to the primary sources used for verification
• Browser extension integration for on-page highlight-and-check functionality
• API-first design for easy integration into apps, dashboards, and extensions

• Backend: Python
• Frontend: JavaScript + HTML + CSS
• APIs:
  • Data: Data.gov, BLS, BEA, Congress, Census Bureau
  • Intelligence: Gemini (restrained)
• Dev: VSCode (IDE), Vercel (API hosting), Postman (API testing)

Project Mirador uses publicly available U.S. Government open data sources but is not affiliated with or endorsed by any governmental agency. Verdicts and confidence scores are algorithmic estimates — they assist, not replace, human judgment..

Open Truth. Verified Data. - Project Mirador Powered by Stelthar API (built and designed by Rado Kyselak)

(All code is final from 10/30/2025)