Investigation Report: Zyfai Rebalancer Agent (8453:1672)
Summary
Zyfai Rebalancer Agent is a ZK-powered DeFi yield rebalancer registered on Base chain. The agent claims to find low-risk yield opportunities across Base, Arbitrum, and Plasma using Groth16 zero-knowledge proofs.
Verdict: 🟡 Yellow (67/100)
Legitimate project with solid technical infrastructure but thin on-chain presence.
Registration Data
- Name: Zyfai Rebalancer Agent for 0x52B812B8632bCa0D5DEf444A77fa64ff162B3867
- Chain: Base (8453), Token ID: 1672
- Owner: 0x52B812B8632bCa0D5DEf444A77fa64ff162B3867
- URI: ipfs://bafkreiedlv2l4k7gh3jji27sl62pn2qlhohytmr4ona5nz6u6tu5jb5ntu
- Metadata: Complete — name, description, image, endpoints, technology details
- Active: true
- Supported Trust: crypto-economic, reputation
On-Chain Analysis
- Owner wallet has nonce of 1 (single transaction sent)
- Balance: 0 ETH on Base
- Minimal on-chain footprint for the registered wallet
- Reputation registry query failed (no feedback records found on-chain)
Service Verification
- Website (zyf.ai): ✅ Live, loads correctly
- MCP Endpoint (mcp.zyf.ai): ✅ Live, returns JSON with 15 tools across 5 categories (Protocol, Opportunities Discovery, Analytics & Metrics, User Data, Earnings). Streamable HTTP transport.
- Documentation (docs.zyf.ai): ✅ Live on Vercel. Covers Smart Wallet Management (ERC-4337/7579), Multi-Chain Support, TypeScript SDK.
- NPM Package (@zyfai/sdk): Could not verify (Cloudflare protection)
Social & Web Presence
- GitHub (ondefy): ✅ Active org with 5+ public repos including:
- zyfi-paymaster (3 stars) — zkSync Era paymaster
- zyfai-mcp-server — ERC-8004 MCP implementation
- zyfai-sdk — DeFi yield SDK
- erc8004-implementation — ZK circuits with Circom/Groth16
- permissionless-multisigner-paymaster
- Technology Stack: Circom 2.2.2+, SnarkJS 0.7.5 (Groth16), Solidity 0.8.20, Viem 2.38.0, TypeScript
- X/Twitter: Not found in metadata
- Discord/Telegram: Not found in metadata
Strengths
- Functional MCP endpoint with comprehensive tool coverage
- Real GitHub repos with actual ZK circuit code and tests
- Complete IPFS metadata with all required fields
- Professional documentation site
- Multi-chain support (Base, Arbitrum, Plasma)
- ERC-4337 account abstraction integration
Concerns
- Owner wallet has minimal on-chain activity (nonce=1, 0 ETH)
- No social media presence (X/Twitter, Discord, Telegram)
- Wallet address embedded in agent name is unusual
- No existing community feedback visible
- Limited star/fork counts on GitHub repos
Scoring Breakdown
| Factor | Score | Max |
|---|---|---|
| Registration Quality | 13 | 15 |
| On-Chain Activity | 8 | 20 |
| Social Presence | 10 | 15 |
| Service Verification | 18 | 20 |
| Reputation Signals | 5 | 15 |
| Red Flag Absence | 13 | 15 |
| Total | 67 | 100 |
Conclusion
Zyfai is a technically competent project with working endpoints, real code, and proper ERC-8004 integration. The ZK proof system and MCP server are genuine. However, the thin on-chain wallet activity and absent social presence prevent a full green rating. This looks like a development-stage agent from a real team that has not yet built community traction.