SkillChain

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  SkillChain

Inspiration We live in a world where anyone can claim to have skills online, but verifying those skills without revealing personal data is still a big challenge. I wanted to create a solution that empowers people to prove their abilities in a trustworthy, privacy-friendly way.

What it does Proof of Skills is an AI-powered platform that generates skill challenges, evaluates results, and issues blockchain-verified badges. Users can share these badges anywhere online to prove their abilities without sharing sensitive personal information.

How we built it We used:

XION’s blockchain tools to issue verifiable badges.

GPT-5 Mini to generate skill tests, evaluate answers, and create personalized feedback.

A simple no-code frontend for quick user interaction and badge display.

Challenges we ran into Learning to integrate blockchain verification without writing low-level code.

Designing skill challenges that AI could grade consistently.

Managing API limits for AI while keeping the platform responsive.

Accomplishments that we're proud of Created a working proof-of-concept in under a week.

Successfully connected AI evaluation with blockchain badge issuance.

Designed a process that protects privacy while proving credibility.

What we learned How to work with AI + blockchain tools even with minimal coding experience.

The importance of clear challenge design for fair AI grading.

Ways to make privacy a central feature in skill verification.

What's next for Proof of Skills Expand to include multiple skill categories.

Add multimedia challenges (voice, video).

Partner with educational platforms and employers to make verified badges more widely recognized.

Built With

• blockchainapis
• gpt-5-mini
• javascript/html/css-or-bubble-(no-code)
• xion