ad-402

ad-402 is a project that combines frontend widgets, crypto payments, and dynamic ad serving.

ad-402

Created At

ETHGlobal New Delhi

Winner of

ETHGlobal

ETHGlobal - šŸ† ETHGlobal New Delhi 2025 Finalist

Polygon

Polygon - Best Use of x402 Agentic Payments on Polygon 5th place

Project Description

Ad-402 is a revolutionary advertising platform that enables direct advertiser-to-publisher payments using the x402 protocol. Publishers can monetize their websites instantly, while advertisers can place ads without intermediaries, using blockchain micropayments.

5-minute integration : Just add a script tag and div elements Instant payments : Get paid in real-time via blockchain No middlemen : Keep 93-95% of ad revenue (vs 50-70% with traditional networks) Complete control : Set your own prices and moderation levels

How it's Made

🌟 What Makes Ad-402 Revolutionary: For Publishers:

5-minute integration : Just add a script tag and div elements Instant payments : Get paid in real-time via blockchain No middlemen : Keep 93-95% of ad revenue (vs 50-70% with traditional networks) Complete control : Set your own prices and moderation levels

For Advertisers:

Direct placement - No complex approval processes Pay-per-view - Only pay for actual ad time Global reach - No geographic restrictions Instant publishing - Ads go live immediately after payment

Key Features:

Multiple ad formats - Images, HTML, videos Dynamic pricing - Time-based and demand-based pricing Content moderation - AI-powered with manual review Real-time analytics - Track performance and revenue Mobile responsive - Works on all devices

šŸŽÆ Perfect for ETHGlobal Demo: Live Demo Flow:

Publisher Setup - Show website with empty ad slots Advertiser Journey - Click slot → upload ad → pay with MetaMask Real-time Update - Ad appears instantly on website Payment Verification - Show transaction on Base blockchain Analytics Dashboard - Real-time revenue and performance metrics

Technical Innovation:

x402 Integration - Perfect showcase of payment protocol Decentralized Architecture - No central authority needed Blockchain Payments - USDC on Base for instant settlement Smart Contracts - Automated revenue distribution

šŸš€ Business Potential: Market Size:

Digital advertising: $500B+ annually Current issues: 30-50% fees, delayed payments, complex setup Ad-402 solution: 2-5% fees, instant payments, 5-minute setup

Revenue Model:

Platform Fee: 2-5% of ad spend Premium Features: Advanced targeting, analytics Enterprise Plans: Custom integrations

This creates a win-win-win scenario:

Publishers get more revenue and instant payments Advertisers get direct access and fair pricing Platform earns sustainable fees while disrupting the industry

The beauty is that it's completely decentralized - publishers and advertisers can transact directly using x402, with the platform just facilitating the connection.

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