{"uid":"cap_omnzpZ1Zunx2CaKmNYs27","slug":"halowerk-marktwerk-cross-exchange-price-comparator-01fc4c3b","name":"HALOWERK marktwerk Cross-Exchange Price Comparator","description":"HALOWERK marktwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.","url":"https://markt.netzhandwerker.de/cross-exchange","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"size":{"type":"number","description":"Optional order size in BASE. With it the executable average price per exchange is computed from the visible book.","exclusiveMinimum":0},"symbol":{"type":"string","pattern":"^[A-Za-z0-9]{2,15}/[A-Za-z0-9]{2,15}$","description":"Trading pair as BASE/QUOTE, for example ETH/USDC."},"venues":{"type":"array","items":{"enum":["binance","coinbase","kraken","okx","bybit"],"type":"string"},"maxItems":5,"minItems":1,"description":"Exchanges to compare. Without it all connected exchanges are used.","uniqueItems":true}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_k5DJrjrwFWCCMvJV_z1KJ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Compares live order book prices for a trading pair across up to 5 crypto exchanges, optionally computing executable average prices for a given order size.","exampleAgentPrompt":"Compare the current ETH/USDC price across Binance, Coinbase, and Kraken — I want to buy 2 ETH, so show me the executable average price per exchange.","exampleUseCases":[{"title":"Best execution venue for large trade","prompt":"I need to buy 10 ETH and want to know which exchange — Binance, Coinbase, or Kraken — gives me the best executable average price for ETH/USDC right now."},{"title":"Spot arbitrage opportunity check","prompt":"Can you check if there's a significant price difference for BTC/USDT between Bybit and OKX right now? I'm looking for arbitrage opportunities."},{"title":"Live price snapshot across all venues","prompt":"Show me the current BTC/USDC price on all connected exchanges so I can see where it's trading cheapest."}],"resultDescription":"Returns current order book price data for the requested trading pair across the specified exchanges. If an order size is provided, includes the computed executable average price (volume-weighted fill price) per exchange based on the visible book depth. Enables direct comparison of which venue offers the best price.","failureModes":["Invalid symbol format (must match BASE/QUOTE pattern like ETH/USDC) — returns validation error","Requested exchange venue not supported or not connected — partial or empty results for that venue","Symbol not listed on one or more requested exchanges — missing data for those venues","Network timeout fetching live order book data from an exchange","Payment failure via x402 — 402 response if USDC payment not included or insufficient"],"whenToPreferThis":"Use this endpoint when you need real-time, cross-exchange price comparison for a specific crypto trading pair, especially when evaluating execution quality for a given order size. Prefer this over single-exchange APIs when the goal is best execution routing, arbitrage detection, or market surveillance across Binance, Coinbase, Kraken, OKX, and Bybit simultaneously.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:47:43.419Z","isFirstParty":false}