{"uid":"cap_yPr-LE_JboF6uQJipGnxV","slug":"base-onchain-data-erc-20-whale-large-trade-tracker-43531fb2","name":"Base Onchain Data – ERC-20 Whale & Large Trade Tracker","description":"Pay-per-call data for AI agents, paid in USDC on Base with x402: token risk checks (rug check) on Base, Ethereum, Arbitrum, Optimism, Polygon and Solana, onchain reads (balances, transactions, gas, contracts, NFTs, whale trades, new pools, ENS and Basenames), ECB exchange rates, and Canadian sales tax and business days.","url":"https://ca-tax-api-mainnet.lxtap.workers.dev/base/trades?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["token"],"properties":{"limit":{"type":"string","pattern":"^\\d{1,2}$","description":"Max trades listed, 1 to 40, default 20"},"token":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"Token contract address on Base"},"minUsd":{"type":"string","pattern":"^\\d+(\\.\\d+)?$","description":"Only list trades at least this large in USD, default 1000"},"minutes":{"type":"string","pattern":"^\\d{1,3}$","description":"Look-back window in minutes; 5 to 240, default 60 (capped at 12,000 blocks, about 50 minutes on Arbitrum)"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"chain":"base","notes":"Trades from the 3 deepest WETH/USDC pools; other pairs and aggregator-internal routes are not counted. Wallets are transaction senders, looked up for the 40 largest trades.","token":{"symbol":"DEGEN","address":"0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed","decimals":18},"window":{"to":"2026-10-22T16:22:57.000Z","from":"2026-10-22T15:22:57.000Z","minutes":60,"toBlock":52948415,"fromBlock":52946615},"summary":{"buys":20,"sells":1,"trades":21,"netFlowUsd":1223.35,"buyVolumeUsd":1223.4,"sellVolumeUsd":0.0558468,"largestTradeUsd":142.466},"nativeUsd":2396.4,"topBuyers":[{"netUsd":471.2,"trades":9,"wallet":"0x3dA47e29a82651171c57956A73F80b3905B8b230","soldUsd":0,"boughtUsd":471.2},{"netUsd":262.4,"trades":2,"wallet":"0x2342110f3Af09c848C104fdE3E7261Dc0C5C4d7a","soldUsd":0,"boughtUsd":262.4},{"netUsd":239.6,"trades":2,"wallet":"0x9CA5CAcb8CD8820415f7cA3C3C3cf7E23c885bd7","soldUsd":0,"boughtUsd":239.6},{"netUsd":142.3,"trades":1,"wallet":"0x2c2e035D20Cd6da1664a7Cf0EAf98e3647607304","soldUsd":0,"boughtUsd":142.3},{"netUsd":67.59,"trades":1,"wallet":"0x911E228d9105963b68af40880Ce8Dd6d5Ee8637E","soldUsd":0,"boughtUsd":67.59}],"topSellers":[{"netUsd":-0.05585,"trades":1,"wallet":"0xbdBeBD58cC8153Ce74530BB342427579315915B2","soldUsd":0.05585,"boughtUsd":0}],"largeTrades":[{"tx":"0x2079d9a6e334ecfb885c7f0144002d59e1c9030f4e34cf9f4a54968d91f11e4f","dex":"uniswap-v3","usd":142.466,"side":"buy","block":52946817,"wallet":"0x2342110f3Af09c848C104fdE3E7261Dc0C5C4d7a","approxTime":"2026-10-22T15:29:41.000Z","quoteAmount":0.05945,"quoteSymbol":"WETH","tokenAmount":149873.49},{"tx":"0x63e5e82b77986e25689e4e68c61044c15c8f5431038b1bfdaf72aa499401464b","dex":"uniswap-v3","usd":142.322,"side":"buy","block":52947027,"wallet":"0x2c2e035D20Cd6da1664a7Cf0EAf98e3647607304","approxTime":"2026-10-22T15:36:41.000Z","quoteAmount":0.05939,"quoteSymbol":"WETH","tokenAmount":149535.86},{"tx":"0x8b75da4612b49b617aa6f50ab419bbd80586557811e194b4ef74cc72a82c31da","dex":"uniswap-v3","usd":119.964,"side":"buy","block":52946821,"wallet":"0x2342110f3Af09c848C104fdE3E7261Dc0C5C4d7a","approxTime":"2026-10-22T15:29:49.000Z","quoteAmount":0.05006,"quoteSymbol":"WETH","tokenAmount":126158.12},{"tx":"0xdb03281dd3142dd5d095abc85539f60e32d9d424b56b601aca376ecd6563aeb5","dex":"uniswap-v3","usd":119.82,"side":"buy","block":52947027,"wallet":"0x9CA5CAcb8CD8820415f7cA3C3C3cf7E23c885bd7","approxTime":"2026-10-22T15:36:41.000Z","quoteAmount":0.05,"quoteSymbol":"WETH","tokenAmount":125923.21},{"tx":"0x54f59ce65722caa69d4d2c76254739354b3bbe109bb22fca6833370fff839065","dex":"uniswap-v3","usd":119.82,"side":"buy","block":52947027,"wallet":"0x9CA5CAcb8CD8820415f7cA3C3C3cf7E23c885bd7","approxTime":"2026-10-22T15:36:41.000Z","quoteAmount":0.05,"quoteSymbol":"WETH","tokenAmount":125863.06}],"poolsScanned":[{"dex":"uniswap-v3","pool":"0xc9034c3E7F58003E6ae0C8438e7c8f4598d5ACAA","pairedWith":"WETH"},{"dex":"uniswap-v3","pool":"0x0cA6485b7e9cF814A3Fd09d81672B07323535b64","pairedWith":"WETH"},{"dex":"aerodrome","pool":"0x2C4909355b0C036840819484c3A882A95659aBf3","pairedWith":"WETH"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3dSmBVY1NgleoXwz7g5hR","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns all large buys and sells for an ERC-20 token on Base in the last N minutes, with USD size, side, wallet, net flow, and top whale wallets from the deepest WETH/USDC pools.","exampleAgentPrompt":"Show me all trades over $2,000 for the token at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base in the last 45 minutes, and tell me who the biggest buyers and sellers are.","exampleUseCases":[{"title":"Whale accumulation alert for new token","prompt":"For the Base token at 0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed, show me all trades over $5,000 in the last 60 minutes — I want to see if any whale wallets are quietly accumulating."},{"title":"Sell pressure check before an entry","prompt":"Before I buy this token, can you pull the buy and sell volume and net flow for 0x532f27101965dd16442E59d40670FaF5eBB142E7 on Base over the last 30 minutes, and flag any large sells above $3,000?"},{"title":"Post-announcement trade spike analysis","prompt":"A big announcement just dropped for the token at 0x78a087d713Be963Bf307b18F2Ff8122EF9A63ae9 on Base — show me the top 20 trades from the last 15 minutes so I can see how whales reacted."}],"resultDescription":"Returns a list of individual large trades (up to the requested limit) with fields including side (buy/sell), USD size, wallet address, and transaction hash; aggregated buy volume, sell volume, and net flow; and ranked lists of wallets by buy and sell volume — all sourced from the token's deepest WETH/USDC pools on Uniswap v3 or Aerodrome on Base.","failureModes":["Invalid token address format (must be 0x + 40 hex chars) returns a validation error","Token has no qualifying liquidity pools on Base — returns empty trade list or error","minutes parameter out of range (below 5 or above 240) returns validation error","limit out of range (above 40) returns validation error","No trades meet the minUsd threshold in the window — returns empty list","RPC or indexer timeout on high-activity tokens may return partial data or 503"],"whenToPreferThis":"Choose this endpoint when you need real-time whale and large-trade intelligence for a specific ERC-20 on the Base network, especially when you want to see individual trade details (wallet, tx, USD size) alongside aggregated net flow from Uniswap v3 or Aerodrome pools. Prefer it over generic block explorers when you need pre-filtered, USD-denominated trade data with whale rankings ready for agent consumption. Use sibling endpoints for Arbitrum, Ethereum, or OP Mainnet instead if the token lives on a different chain.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T12:42:58.409Z","isFirstParty":false,"canonicalSlug":"base-onchain-data-erc-20-whale-large-trade-tracker-43531fb2"}