{"uid":"cap_7Kau1XILkPWoperPyusfK","slug":"base-intel-api-jakemaxsigal-workers-dev-17fd3553","name":"Base USDC Flow Leaderboard","description":"Base trader leaderboard API / smart money tracker / top Base wallets by USDC flow / onchain whale tracker / copy-trading signal. Ranks the most active Base wallets by net USDC flow, flagging smart wallets (ERC-4337), accumulators, and pass-through routers. For AI agents and copy-trading bots following smart money on Base.","url":"https://base-intel-api.jakemaxsigal.workers.dev/leaderboard","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":{"request":{"limit":10},"response":{"chain":"base","period":"last ~4 minutes (120 blocks)","caveats":["Measures USDC FLOW, not profit. To know if a wallet is actually profitable you need cost basis + all token positions.","Window is only ~10 minutes — a wallet ranked #1 here may be neutral or losing over 24h","Excludes other tokens (ETH, memecoins, NFTs) — wallet may be net positive in USDC but losing on holdings","CEX hot wallets and bridges will appear here and look profitable"],"summary":{"passthrough":7,"accumulators":3,"distributors":5,"walletsTracked":12,"totalNetFlowUsd":-34135.4},"timestamp":"2026-06-12T03:08:20.215Z","blockRange":{"to":47222175,"from":47222055},"description":"Top active wallets on Base ranked by USDC net flow. NOT profit/loss — this is USDC accumulation only. A high flow could be trading profit, exchange deposits, bridge settlement, or treasury operations.","ethPriceUsd":3000,"leaderboard":[{"rank":1,"address":"0x6b0f53cbd9272d8117e9535fe25371dedf39a1be","basescanUrl":"https://basescan.org/address/0x6b0f53cbd9272d8117e9535fe25371dedf39a1be","isSmartWallet":true,"classification":"whale_trader","usdcNetFlowUsd":5701.01,"volumeInPeriod":57539,"currentBalances":{"ethBalance":0,"ethValueUsd":0,"usdcBalance":566566.45,"portfolioUsd":566566.45},"transfersInPeriod":362,"currentPortfolioUsd":566566.45},{"rank":2,"address":"0xe9030014f5dae217d0a152f02a043567b16c1abf","basescanUrl":"https://basescan.org/address/0xe9030014f5dae217d0a152f02a043567b16c1abf","isSmartWallet":false,"classification":"whale_trader","usdcNetFlowUsd":7.68,"volumeInPeriod":8,"currentBalances":{"ethBalance":0.001,"ethValueUsd":3,"usdcBalance":38297.54,"portfolioUsd":38300.54},"transfersInPeriod":975,"currentPortfolioUsd":38300.54},{"rank":3,"address":"0xd99bb3a033e34682a2d36f35555476346536a9d5","basescanUrl":"https://basescan.org/address/0xd99bb3a033e34682a2d36f35555476346536a9d5","isSmartWallet":true,"classification":"passthrough_router","usdcNetFlowUsd":1.14,"volumeInPeriod":3133,"currentBalances":{"ethBalance":0,"ethValueUsd":0,"usdcBalance":519.68,"portfolioUsd":519.68},"transfersInPeriod":242,"currentPortfolioUsd":519.68},{"rank":4,"address":"0x663dc15d3c1ac63ff12e45ab68fea3f0a883c251","basescanUrl":"https://basescan.org/address/0x663dc15d3c1ac63ff12e45ab68fea3f0a883c251","isSmartWallet":true,"classification":"passthrough_router","usdcNetFlowUsd":0,"volumeInPeriod":8295,"currentBalances":{"ethBalance":0.0007,"ethValueUsd":1.96,"usdcBalance":0.03,"portfolioUsd":1.99},"transfersInPeriod":320,"currentPortfolioUsd":1.99},{"rank":5,"address":"0x7747f8d2a76bd6345cc29622a946a929647f2359","basescanUrl":"https://basescan.org/address/0x7747f8d2a76bd6345cc29622a946a929647f2359","isSmartWallet":true,"classification":"passthrough_router","usdcNetFlowUsd":0,"volumeInPeriod":507940,"currentBalances":{"ethBalance":0,"ethValueUsd":0,"usdcBalance":0,"portfolioUsd":0},"transfersInPeriod":271,"currentPortfolioUsd":0},{"rank":6,"address":"0xc8f6b8ba0dc0f175b568b99440b0867f69a29265","basescanUrl":"https://basescan.org/address/0xc8f6b8ba0dc0f175b568b99440b0867f69a29265","isSmartWallet":true,"classification":"passthrough_router","usdcNetFlowUsd":0,"volumeInPeriod":40046,"currentBalances":{"ethBalance":0,"ethValueUsd":0,"usdcBalance":0,"portfolioUsd":0},"transfersInPeriod":219,"currentPortfolioUsd":0},{"rank":7,"address":"0x1231deb6f5749ef6ce6943a275a1d3e7486f4eae","basescanUrl":"https://basescan.org/address/0x1231deb6f5749ef6ce6943a275a1d3e7486f4eae","isSmartWallet":true,"classification":"passthrough_router","usdcNetFlowUsd":0,"volumeInPeriod":68672,"currentBalances":{"ethBalance":0,"ethValueUsd":0,"usdcBalance":0,"portfolioUsd":0},"transfersInPeriod":217,"currentPortfolioUsd":0},{"rank":8,"address":"0x2b4ee3387008e5ff1a9996fc8b48d2fd61389037","basescanUrl":"https://basescan.org/address/0x2b4ee3387008e5ff1a9996fc8b48d2fd61389037","isSmartWallet":false,"classification":"distributor","usdcNetFlowUsd":-7.65,"volumeInPeriod":8,"currentBalances":{"ethBalance":0,"ethValueUsd":0,"usdcBalance":5710.55,"portfolioUsd":5710.55},"transfersInPeriod":912,"currentPortfolioUsd":5710.55},{"rank":9,"address":"0xf1cacd7e005b9337c58aae77bc88d93c635cdf4d","basescanUrl":"https://basescan.org/address/0xf1cacd7e005b9337c58aae77bc88d93c635cdf4d","isSmartWallet":true,"classification":"distributor","usdcNetFlowUsd":-535.72,"volumeInPeriod":40117,"currentBalances":{"ethBalance":0,"ethValueUsd":0,"usdcBalance":237107.32,"portfolioUsd":237107.32},"transfersInPeriod":383,"currentPortfolioUsd":237107.32},{"rank":10,"address":"0x278d858f05b94576c1e6f73285886876ff6ef8d2","basescanUrl":"https://basescan.org/address/0x278d858f05b94576c1e6f73285886876ff6ef8d2","isSmartWallet":true,"classification":"distributor","usdcNetFlowUsd":-3918.84,"volumeInPeriod":35890,"currentBalances":{"ethBalance":0,"ethValueUsd":0.06,"usdcBalance":531566.17,"portfolioUsd":531566.23},"transfersInPeriod":535,"currentPortfolioUsd":531566.23},{"rank":11,"address":"0xb2cc224c1c9fee385f8ad6a55b4d94e92359dc59","basescanUrl":"https://basescan.org/address/0xb2cc224c1c9fee385f8ad6a55b4d94e92359dc59","isSmartWallet":true,"classification":"passthrough_router","usdcNetFlowUsd":-8038.18,"volumeInPeriod":7199410,"currentBalances":{"ethBalance":0,"ethValueUsd":0,"usdcBalance":2491779.12,"portfolioUsd":2491779.12},"transfersInPeriod":246,"currentPortfolioUsd":2491779.12},{"rank":12,"address":"0x61040e143a77f165ba44543af4a079f2c809d14b","basescanUrl":"https://basescan.org/address/0x61040e143a77f165ba44543af4a079f2c809d14b","isSmartWallet":true,"classification":"passthrough_router","usdcNetFlowUsd":-27344.84,"volumeInPeriod":9846902,"currentBalances":{"ethBalance":0,"ethValueUsd":0.03,"usdcBalance":627449.59,"portfolioUsd":627449.63},"transfersInPeriod":408,"currentPortfolioUsd":627449.63}],"methodology":{"input":"All USDC Transfer events on Base in the last ~120 blocks","ranking":"Sorted by USDC net flow (in - out)","classifications":{"accumulator":"Net positive USDC, small portfolio — recent inflow","distributor":"Net negative USDC — paying out / selling","passthrough":"Net flow < 1% of volume — likely router/MEV bot","whale_trader":"Net positive USDC AND large portfolio"}}}},"exampleRequest":{"limit":10},"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_4CJjkHVwln8UupOW2ALMf","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the top active Base blockchain wallets ranked by USDC net flow over the last ~10 minutes, classifying them as smart wallets, accumulators, or pass-through routers.","exampleAgentPrompt":"Who are the top wallets moving USDC on Base right now? I want to see the leaderboard ranked by net flow from the last 10 minutes, and flag which ones are smart wallets, accumulators, or just pass-through routers.","exampleUseCases":[{"title":"Detect smart money on Base","prompt":"Find me the smart wallets that are most actively moving USDC on Base right now. I want to know which addresses the smart money is behind and how much they've been flowing in the last 10 minutes."},{"title":"Spot USDC accumulators in real-time","prompt":"Which wallets on Base are accumulating the most USDC right now? Show me the top accumulators from the last 10 minutes so I can track where capital is building up on-chain."},{"title":"Identify high-volume pass-through routers","prompt":"I'm trying to figure out which Base addresses are just routing USDC through rather than holding it. Pull up the latest leaderboard and highlight any pass-through routers with high net flow so I can filter out the noise from real traders."}],"resultDescription":"A ranked leaderboard of the most active Base wallets by USDC net flow over the last ~10 minutes, with each wallet labeled by behavioral classification: smart wallet, accumulator, or pass-through router. Includes wallet addresses and flow metrics.","failureModes":["Stale or unavailable on-chain data may result in empty or partial leaderboard","Payment of 0.01 USDC required via x402 protocol — missing payment returns 402 error","Rate limiting or worker timeout may return 5xx errors under high load","No wallets returned if Base network activity is very low in the time window"],"whenToPreferThis":"Use this endpoint when you need a real-time snapshot of which Base wallets are most actively moving USDC, especially to identify smart money, accumulation patterns, or routing behavior. Ideal for on-chain alpha research, bot detection, or tracking influential wallets on Base in near-real-time.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:33:00.946Z","isFirstParty":false}