Investigation Report: Zyfai Rebalancer Agent (8453:1936)
Summary
The Zyfai Rebalancer Agent is a DeFi yield optimization agent registered on Base by the Zyfai team (formerly Zyfi). It claims to find low-risk yield opportunities across Base, Arbitrum, and Plasma using ZK-powered rebalancing.
Verdict: 🟡 Yellow (74/100)
A legitimate project with strong infrastructure but thin on-chain registration presence.
Registration Data
- Token ID: 1936 on Base (chain 8453)
- Owner: 0x91fE2659D55915C5099C5CC04E255BCeD6a1938D
- URI: IPFS-hosted metadata (valid JSON with rich fields)
- Capabilities: MCP endpoint, web endpoint
- Claims: ZK circuits (Circom 2.2.2+), Groth16 proofs, multi-chain support
On-Chain Analysis
- Owner wallet has only 1 transaction and zero ETH balance on Base
- This is concerning — the registration wallet appears to be a single-purpose deployer
- No agent wallet configured in the identity registry
- 2 existing ERC-8004 feedback entries
Social & Web Presence
- Twitter: @ZyfAI_ (dedicated account) + @Zyfi_org (parent project)
- Medium: zyfiofficial.medium.com with detailed technical articles
- Mirror: Published article on ZyfAI product vision
- DefiLlama: Listed as a tracked DeFi protocol
- History: Evolved from Zyfi, an established ZKsync paymaster-as-a-service provider
Service Verification
- Website (zyf.ai): ✅ Live
- MCP Server (mcp.zyf.ai): ✅ Live, v1.0.0, 15 tools across 5 categories (Protocol, Opportunities, Analytics, User Data, Earnings)
- Documentation (docs.zyf.ai): ✅ Live, covers smart wallet management, multi-chain support, SDK
- NPM SDK (@zyfai/sdk): ✅ v0.2.20, 2,081 monthly downloads, actively maintained
- GitHub (ondefy): ✅ 5+ repos including zyfai-mcp-server, zyfai-sdk, zyfi-paymaster
Strengths
- Real team with established track record (Zyfi paymaster on ZKsync)
- Comprehensive MCP server with 15 functional tools
- Actively maintained SDK with regular releases
- Professional documentation
- Listed on DefiLlama
Concerns
- Registration wallet has minimal on-chain activity (1 tx, 0 balance)
- No agent wallet configured in the identity registry
- IPFS metadata not pinned on all gateways (Pinata gateway returned error)
- Registration appears to be a formality rather than deeply integrated