{"uid":"cap_kTf-m-WDf7ZNooz2CUTZO","slug":"dex-arbitrage-scanner-weth-usdc-spread-on-base-651ff2d5","name":"DEX Arbitrage Scanner – WETH/USDC Spread on Base","description":"WETH/USDC spot price read on-chain from Uniswap v3 and Aerodrome v2 on Base, with the gross spread in bps and which side is cheaper. Fees, gas and slippage are not included.","url":"https://auditor-x402.onrender.com/api/dex-arbitrage-scanner?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"pair":{"type":"string","description":"Only \"WETH/USDC\" is supported"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_y0UVx_Phqr7pl-03hJzKO","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"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.","exampleAgentPrompt":"What's the current WETH/USDC spot price on both Uniswap v3 and Aerodrome v2 on Base, and which one is cheaper — and by how many basis points?","exampleUseCases":[{"title":"Arbitrage opportunity detection bot","prompt":"Check the WETH/USDC spread between Uniswap v3 and Aerodrome on Base right now and tell me if the gross spread in basis points is wide enough to be interesting for arbitrage."},{"title":"Best execution routing for a trade","prompt":"I want to swap some WETH for USDC on Base — can you check whether Uniswap v3 or Aerodrome v2 is currently offering a better spot price for the WETH/USDC pair?"},{"title":"Real-time DEX price monitoring dashboard","prompt":"Pull the live on-chain WETH/USDC prices from both Uniswap v3 and Aerodrome on Base and tell me the spread in bps so I can track whether it's widening or tightening."}],"resultDescription":"Returns the WETH/USDC spot price as quoted on Uniswap v3 and Aerodrome v2 on Base (both read directly from on-chain state), the gross spread between them expressed in basis points, and an indicator of which DEX is currently cheaper. Note: fees, gas costs, and slippage are excluded from the spread calculation.","failureModes":["Unsupported pair supplied (only WETH/USDC is currently accepted) — expect a 400 or validation error","On-chain RPC node unavailability causing read failure","Stale or empty liquidity pool state returning zero or invalid prices","Payment not fulfilled (x402 payment required, 402 response if not paid)","Network congestion on Base causing timeout on chain read"],"whenToPreferThis":"Choose this endpoint when you need a raw, on-chain gross spread comparison between Uniswap v3 and Aerodrome v2 specifically for the WETH/USDC pair on Base, without any post-processing of fees or slippage. It is ideal for arbitrage signal detection, best-execution routing decisions, or real-time price monitoring dashboards focused on the Base L2 ecosystem. Prefer alternatives if you need fee-adjusted net P&L estimates, multi-hop routing, or pairs beyond WETH/USDC.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-19T12:34:37.296Z","isFirstParty":false,"canonicalSlug":"dex-arbitrage-scanner-weth-usdc-spread-on-base-651ff2d5"}