ConvictionFi | Mint your Conviction. DeFAI Agent as NFT [Sui Overflow Hackathon 2025]
KYOHEI ITO

KYOHEI ITO @kyohei_nft

About: The top contributor to Japan's web3 developer community / ex-CTO & VPoE at web3 startups in Japan

Location:
Tokyo, Japan
Joined:
Oct 14, 2021

ConvictionFi | Mint your Conviction. DeFAI Agent as NFT [Sui Overflow Hackathon 2025]

Publish Date: May 30
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Project Overview

ConvictionFi offers a new paradigm for realizing the vision of DeFi × AI (DeFAI). With a single NFT mint, users can delegate conviction-based investing to an autonomous AI agent.

  • Product Type: DeFAI NFT Protocol
  • Tagline: “Mint Your Conviction. DeFAI Agent as NFT.”
  • Target Audience: Beginner to intermediate DeFi users, ideologically-driven investors, Web3 natives

PROBLEM: DeFAI Is Just a Buzzword

Terms like “DeFAI” and “Vibe Trading” are everywhere—but they lack substance.

Most so-called DeFAI products suffer from vague use cases, fragmented user experiences, and an overall lack of clarity about what it actually means to "use DeFAI."


SOLUTION: DeFAI Agent as NFT

We built a complete, intuitive experience: the DeFAI Agent as an NFT.

  • Users simply mint an NFT
  • That NFT becomes a standalone AI agent managing the user’s capital
  • No dashboards. No approvals. No ongoing management

USER FLOW: Just Mint NFT

ConvictionFi follows a 5-step lifecycle.

Only Step 1 requires your input — from Step 2 onward, your agent takes over.

  1. Mint Your Conviction

    Choose a belief. Mint the NFT. That’s it.

  2. NFT = AI Agent

    The NFT becomes an autonomous, on-chain trader.

  3. Autonomous Execution

    The agent trades, stakes, or lends — no input needed.

    All activity is publicly reported.

  4. Learn & Evolve

    The agent adapts based on market signals or strategy upgrades.

  5. Exit or Transfer

    Withdraw via protocol rules — or sell the NFT on secondary markets.


Sample Strategy

  1. SUI_MAXIMIZER

    • Aggressive accumulation of SUI and ecosystem tokens during market dips
    • Ideological Thesis: "Sui represents the future of blockchain scalability. Every dip is an opportunity to accumulate before mass adoption."
  2. BTC_HODLER

    • Long-term Bitcoin accumulation with DCA and volatility exploitation
    • Ideological Thesis: "Bitcoin is digital gold and the ultimate store of value. Time in market beats timing the market."
  3. STABLE_OPTIMIZER

    • Conservative yield optimization across stable pools and lending protocols
    • "Consistent yield generation with capital preservation. Compound interest is the eighth wonder of the world."

SECURUTY MODEL: Why We Never Touch Your Wallet

Most DeFi apps require direct wallet transactions, creating unnecessary risk and inconvenience.

ConvictionFi uses a different approach: your minted NFT becomes both entry point and autonomous firewall.

  • The minting price becomes your trading budget — no additional deposits or approvals needed
  • Each NFT generates its own isolated smart wallet, completely separate from your personal funds
  • Only the NFT agent signs transactions and takes action

Your risk is compartmentalized, your conviction tokenized, and your NFT thinks and acts independently — keeping your wallet safe.


TECHINICAL ARCHITECTURE: Walrus x NFT x AI

ConvictionFi leverages Walrus decentralized storage to ensure immutable and transparent NFT metadata for conviction-based trading agents.

Each Conviction NFT stores comprehensive data on Walrus including:

  • Strategy parameters and logic
  • Conviction statements and reasoning
  • Risk limits and execution policies
  • Agent version history and mint timestamps

The system utilizes Walrus's key features:

  • Content-addressed storage with verifiable CIDs for data integrity
  • Permanent append-only architecture preventing deletions or secret alterations
  • Full transparency allowing anyone to inspect metadata via URI

This approach ensures complete audit trails as trading agents evolve through versioned updates.

Each NFT contains a Walrus metadata URI that points to the latest version while preserving access to historical versions for verification.

The JSON-formatted data includes strategy details, risk profiles, whitelisted contracts, and execution policies.

Since Walrus is append-only, strategy upgrades create new versions rather than overwriting existing data, ensuring full traceability of agent evolution over time.

This storage solution guarantees transparency, auditability, and future-proofing without requiring large metadata storage directly on-chain, while ensuring all strategy changes remain traceable and potentially subject to governance approval.


Tech Stack

▼ Web3 Layer

  • Layer1: Sui Network → High-speed, low-cost blockchain. Built on the Move programming language.
  • Smart Contract: Move Language → Implements core logic for ConvictionNFTs, Agent Wallets, etc.
  • AI Agent Framework: Sui Agent Kit → On-chain initialization and deployment of AI trading agents.
  • Storage: Walrus → Stores strategy prompts and metadata (supports both editable and immutable types).
  • Bridge: Wormhole → Enables cross-chain fund transfers (e.g., ETH/USDC → Sui).
  • Authentication: Privy → Enables social login and zkLogin for seamless Web2-style onboarding.
  • NFT Marketplace: Compatible with Sui-based marketplaces (e.g., BlueMove) → Enables secondary trading of ConvictionNFTs.
  • Token Standards: Sui::NFT, Wallet::Object → Each NFT functions as a wallet and signer with embedded logic.

▼ Web2 / Application Layer

  • Deployment Platform: Vercel
  • Database (temporary): Firebase
  • AI Cloud: Alibaba Cloud
  • Payment API: Stripe (for fiat-based NFT minting, planned)

▼ Developer Tools & Infrastructure

  • AI Coding Assistants: ChatGPT, Claude, Cursor, v0.dev
  • CI/CD Integration: Claude Code GitHub Actions

Links

X(Twitter): https://x.com/ConvictionFi
Slide Deck: https://gamma.app/docs/ConvictionFi-yicndaml629ajp0
Demo: https://convictionfi.vercel.app/
Founder: https://www.linkedin.com/in/kyohei-nft/

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