{"uid":"cap_giEFFLN6YduhxV-qztjI-","slug":"chainanalyzer-coinjoin-transaction-mixer-detection-c1a9f325","name":"ChainAnalyzer — CoinJoin / Transaction Mixer Detection","description":"Multi-chain blockchain AML and security intelligence platform for tokens, wallets, and stablecoins. Detect sanctions, money laundering, rug pulls, drainers, and stablecoin flow risks across 8 chains live (Bitcoin, Ethereum, Polygon, Base, Arbitrum, Optimism, Avalanche, Solana) plus BNB Smart Chain on Enterprise rollout. Stablecoin AML coverage for JPYC, USDT, USDC, PYUSD, FDUSD with FATF Travel Rule screening.","url":"https://chain-analyzer.com/x402/api/tx/0x0000000000000000000000000000000000000000000000000000000000000000/coinjoin","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"schema":{"tx_hash":"string","confidence":"number","mixer_type":"string?","is_coinjoin":"boolean"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"1","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_qwVoAEqTdG-I5zD8cxxyI","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Analyzes a blockchain transaction hash to detect CoinJoin usage and other mixing patterns, returning a confidence score and mixer type classification.","exampleAgentPrompt":"Can you check if the transaction 0x3f5b...c4a1 used CoinJoin or any other mixing technique — I need the confidence score and mixer type for a compliance report.","exampleUseCases":null,"resultDescription":"Returns a JSON object with the transaction hash, a boolean indicating whether CoinJoin was detected, a confidence score (0–1), and an optional mixer_type string classifying the specific mixing technique used.","failureModes":["Unknown or unrecognized transaction hash returns not-found error","Transaction hash malformed or wrong length returns validation error","Chain not yet supported returns unsupported chain error","Payment not received or expired returns 402 Payment Required","Network congestion causes timeout on node queries"],"whenToPreferThis":"Use this endpoint when you specifically need to determine whether a single transaction employed CoinJoin or another privacy-mixing technique, and require a machine-readable confidence score and mixer classification. Prefer this over a general AML address-risk endpoint when the unit of analysis is a specific transaction rather than a wallet address.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:40:27.952Z","isFirstParty":false}