Proof of Usefulness Report
Mantle Agent Payment Guard
Analysis completed on 5/28/2026
+50.05
Proof of Usefulness Score
You're In Business
Mantle Agent Payment Guard is an innovative and timely early-stage prototype addressing the emerging security needs of AI-triggered Web3 payments. While the technical foundation and market relevance are strong, the project currently lacks significant audience reach and user adoption, existing primarily as a testnet hackathon submission.
Ready to Compete for $150k+ in Prizes?
Move this data into a HackerNoon blog draft to become eligible for your share of $150k+ in cash and software prizes
View All Reports
Score Breakdown
Real World Utility+17.5
Audience Reach Impact+1.0
Technical Innovation+9.75
Evidence Of Traction+2.5
Market Timing Relevance+8.0
Functional Completeness+6.75
Subtotal+45.5
Usefulness Multiplierx1.1
Final Score+50
Project Details
Description
Mantle Agent Payment Guard is a Web3 safety prototype for AI-triggered payments. It lets a user review a payment intent, see policy/risk signals, and write a payment-safety receipt to a Mantle Sepolia smart contract before treating an AI-powered payment action as approved. The project is open source, has a live frontend, a deployed Mantle Sepolia contract, a successful usage transaction, and a public demo video.
Audience Reach
Current reach is early-stage prototype reach: public GitHub repository, public GitHub Pages demo, public demo video, and DoraHacks Mantle Turing Test submission under review. The project is not claiming production users or revenue yet; it is designed for Web3 builders, wallet teams, AI-agent developers, and hackathon/reviewer audiences evaluating safer AI-triggered payment flows.
Target Users
Mantle Agent Payment Guard is for Web3 users, AI-agent builders, wallet developers, and payment teams who need a safer checkpoint before an autonomous agent triggers or prepares an onchain payment. It helps reviewers understand the payment intent, risk score, policy threshold, model hash, and receipt hash before treating an AI-powered action as approved.
Technologies
Other, Solidity, Foundry, React, Vite, TypeScript, ethers.js, Mantle Sepolia, GitHub Pages, MantleScan
Traction Evidence
Live frontend: https://davidweb3-ctrl.github.io/mantle-agent-payment-guard/
GitHub repo: https://github.com/davidweb3-ctrl/mantle-agent-payment-guard
Demo video: https://github.com/davidweb3-ctrl/mantle-agent-payment-guard/raw/main/demo/mantle-agent-payment-guard-demo.mp4
Mantle Sepolia contract: 0x4965e045fBA701c8d98B445155e82B2E153e7335
Usage tx: https://sepolia.mantlescan.xyz/tx/0x7264d23c8e5c0a3e57559e9af64b81bfba42dd13f5c65ae3e13299101633c1fa
The project has passing Foundry tests, a passing production frontend build, a deployed Mantle Sepolia contract, one successful payment-safety receipt transaction, and a DoraHacks Mantle Turing Test submission currently under review.
Algorithm Insights
Market Position
Growing utility with room for optimization
User Engagement
Documented reach suggests active user community
Technical Stack
Modern tech stack aligned with sponsor technologies
Recommendations to Increase Usefulness Score
Document User Growth
Provide specific metrics on user acquisition and retention rates
Showcase Revenue Model
Detail sustainable monetization strategy and current revenue streams
Expand Evidence Base
Include testimonials, case studies, and third-party validation
Technical Roadmap
Share development milestones and feature completion timeline