# Services from auditor-x402.onrender.com on Zero

> auditor-x402.onrender.com serves 9 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/auditor-x402.onrender.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/auditor-x402.onrender.com/health.json

## Services

- [ERC-20 Token Due Diligence on Base (auditor-x402)](https://www.zero.xyz/c/erc-20-token-due-diligence-on-base-auditor-x402-c6464217/llms.txt): $0.01/call via x402. Aggregates GoPlus risk flags, on-chain token facts, and Uniswap v3 pool liquidity into a single due-diligence report for any ERC-20 on Base
- [ERC-20 Token Risk Flags & On-Chain Facts (Base) — auditor-x402](https://www.zero.xyz/c/erc-20-token-risk-flags-on-chain-facts-base-auditor-x402-459fa30c/llms.txt): $0.005/call via x402. Returns GoPlus-sourced risk flags (honeypot, high tax, mintable, unverified, hidden owner, pausable) plus on-chain facts (symbol, supply, owner) for any ERC-20 token on Base mainnet.
- [Base Mainnet Gas Fee Optimizer](https://www.zero.xyz/c/base-mainnet-gas-fee-optimizer-6022ee19/llms.txt): $0.002/call via x402. Returns live and 10-block average base fee, priority-fee percentiles (p25/p50/p75), and a congestion label for Base Mainnet using eth_feeHistory
- [DEX Arbitrage Scanner – WETH/USDC Spread on Base](https://www.zero.xyz/c/dex-arbitrage-scanner-weth-usdc-spread-on-base-651ff2d5/llms.txt): $0.005/call via x402. Returns the real-time WETH/USDC spot price from both Uniswap v3 and Aerodrome v2 on Base, along with the gross spread in basis points and which DEX is cheaper.
- [Uniswap v3 New Pool Radar on Base](https://www.zero.xyz/c/uniswap-v3-new-pool-radar-on-base-25321758/llms.txt): $0.005/call via x402. Returns the newest Uniswap v3 liquidity pools created on Base chain, including token symbols, fee tier, and block number from PoolCreated events
- [Base Contract Technical Profiler](https://www.zero.xyz/c/base-contract-technical-profiler-b5501f9b/llms.txt): $0.003/call via x402. Returns bytecode size, proxy type detection (EIP-1167/EIP-1967 implementation and admin slots), and owner() for a given contract address on Base mainnet.
- [Base USDC Whale Transfer Tracker](https://www.zero.xyz/c/base-usdc-whale-transfer-tracker-4b147253/llms.txt): $0.005/call via x402. Scans recent Base blockchain blocks for large USDC transfers, returning confirmed Transfer logs with amount, sender, receiver, transaction hash, and block number.
- [Aave v3 Base Lending Health Factor](https://www.zero.xyz/c/aave-v3-base-lending-health-factor-3def617e/llms.txt): $0.005/call via x402. Returns total collateral, total debt, health factor, and liquidation risk band for any wallet's Aave v3 position on Base mainnet.
- [Aave v3 Flash Loan Routes on Base](https://www.zero.xyz/c/aave-v3-flash-loan-routes-on-base-256e69a3/llms.txt): $0.005/call via x402. Returns available flash-loan liquidity and fee rate for any Aave v3 listed asset on Base, read directly from on-chain data.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)