Investigation Report: Zyfai Rebalancer Agent (8453:1683)

Overview

Summary

This is a per-user instance of the legitimate ZyFAI DeFi yield optimization platform, registered on Base. The agent is part of ZyFAI's smart account architecture where each user gets their own dedicated rebalancer agent that autonomously manages yield across multiple chains.

Registration & On-Chain Analysis

• Token 1683 on Base Identity Registry, owner matches the wallet in the agent name
• IPFS metadata properly pinned with comprehensive agent profile
• ZK technology stack (Circom 2.2.2+, SnarkJS/Groth16)
• Smart account has nonce=1 with zero ETH balance — typical for a per-user DeFi agent that operates through protocol-level interactions
• Multi-chain support declared: Base, Arbitrum, Plasma

Service Verification

• MCP Server (https://mcp.zyf.ai): ✅ Live — Streamable HTTP transport, 15 tools across 5 categories (Protocol, Opportunities Discovery, Analytics & Metrics, User Data, Earnings)
• Website (https://www.zyf.ai): ✅ Active, professional
• Documentation (https://docs.zyf.ai): ✅ Comprehensive technical docs
• Source Code (https://github.com/ondefy/erc8004-implementation): Referenced in metadata

Platform Legitimacy

• DefiLlama TVL: $7.45M total — Base ($5.45M), Arbitrum ($1.6M), Sonic ($238K), Plasma ($145K)
• Revenue: ~$71.4K annualized
• Category: Yield (DeFi)
• Active on 4 chains: Base, Arbitrum, Plasma, Sonic
• Blog/Content: Active Medium blog (zyfiofficial), Mirror posts
• IQ.wiki listing: Verified entry describing non-custodial cross-chain yield agent

Risk Assessment

• ✅ Legitimate, well-documented DeFi protocol
• ✅ Real TVL and revenue tracked on DefiLlama
• ✅ Working MCP endpoint with proper tooling
• ✅ Self-custodial architecture (user retains control)
• ⚠️ Per-user instance with minimal direct on-chain activity (by design)
• ⚠️ Same verdict applies broadly to all Zyfai per-user agents

Scoring Breakdown

• Registration quality: 13/15 (complete IPFS metadata, proper endpoints)
• On-chain activity: 10/20 (per-user account, minimal direct activity by design)
• Social presence: 12/15 (active blog, documentation, wiki listing)
• Service verification: 18/20 (live MCP with 15 tools, docs, website)
• Reputation signals: 12/15 (DefiLlama tracked, significant TVL)
• Red flag absence: 14/15 (clean record)

Total: 79/100 — 🟢 Green

Verdict

Zyfai Rebalancer Agent 1683 is a legitimate per-user instance of the ZyFAI DeFi platform. Strong platform fundamentals with $7.45M TVL, working MCP server, and comprehensive documentation. The per-user smart account architecture means individual agent wallets show minimal activity — this is expected, not suspicious.