{"id":"7ec3c8f6-99bf-4e8c-a0c4-c92b729bdab8","shortId":"P4tXeX","kind":"x402","title":"Monitor large token swaps on Base via a pay-per-call x402 endpoint.","tagline":"Monitor large token swaps on Base via a pay-per-call x402 endpoint.","description":"This endpoint from Erudite Intelligence LLC provides crypto data intelligence focused on monitoring large swaps on the Base blockchain. It is accessed via HTTP POST and accepts a JSON body specifying the chain to monitor (e.g., \"base\"). The response returns structured JSON with swap data.\n\nPayment is handled via the x402 protocol (version 2). The endpoint accepts two payment options: USDC on Base (EIP-155:8453) at $0.01 per call, or USDT on Tron at $0.01 per call. Settlement is facilitated through the EruditePay Bridge, which supports 20 blockchains and uses the Coinbase CDP facilitator for Base payments. The provider, Erudite Intelligence LLC, is a FinCEN-registered MSB.\n\nDocumentation is sparse — the endpoint description in the x402 challenge is simply \"Crypto data intelligence,\" and the output example is a generic `{\"success\": true, \"data\": {}}` stub. There is no dedicated documentation page for this monitoring endpoint (the /docs path returns a 404). The exact fields returned in the data object are not documented, so consumers should expect to discover the response shape empirically.","tags":[],"capabilities":["large-swap-monitoring","base-chain-analytics","crypto-data-intelligence","x402-payment","usdc-base","usdt-tron","json-api"],"categories":["crypto","analytics","defi"],"synonyms":["whale swap tracker","large trade monitor","base chain swap alerts","big swap detection","DEX large trade monitor","crypto whale activity","on-chain swap intelligence"],"warnings":["No dedicated documentation exists for this endpoint; /docs returns 404.","The output example is a generic stub ({\"success\": true, \"data\": {}}) — actual response fields are undocumented.","The endpoint description is vague: 'Crypto data intelligence' with no specifics on what 'large swaps' data includes.","Response schema must be discovered empirically by making a paid call."],"endpointUrl":"https://bridge.eruditepay.com/v1/base/monitor/large-swaps","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","amount":"5000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}]},"qualityScore":"0.450","qualityRationale":"The endpoint is live (returns a valid x402 402 challenge) with clear pricing and payment options. However, documentation is essentially absent — no dedicated docs page, no detailed output schema, and the example response is a generic stub. The endpoint's actual data payload is 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'/docs':175 '0.01':96,104 '2':82 '20':116 '404':179 '8453':94 'DEX large trade monitor' 'accept':55,85 'access':50 'base':6,20,46,65,91,125 'base chain swap alerts' 'base-chain-analytics' 'big swap detection' 'blockchain':47,117 'bodi':58 'bridg':113 'call':12,26,98,106 'cdp':122 'chain':61 'challeng':147 'coinbas':121 'consum':192 'crypto':36,150 'crypto whale activity' 'crypto-data-intelligence' 'data':37,73,151,162,186 'dedic':167 'descript':143 'discov':196 'document':138,168,190 'e.g':64 'eip':92 'empir':200 'endpoint':14,28,30,84,142,173 'erudit':32,129 'eruditepay':112 'exact':181 'exampl':156 'expect':194 'facilit':109,123 'field':182 'fincen':135 'fincen-regist':134 'focus':39 'generic':159 'handl':76 'http':52 'intellig':33,38,130,152 'json':57,70 'json-api' 'larg':2,16,42 'large trade monitor' 'large-swap-monitoring' 'llc':34,131 'monitor':1,15,41,63,172 'msb':137 'object':187 'on-chain swap intelligence' 'option':88 'output':155 'page':169 'path':176 'pay':10,24 'pay-per-cal':9,23 'payment':74,87,126 'per':11,25,97,105 'post':53 'protocol':80 'provid':35,128 'regist':136 'respons':67,198 'return':68,177,183 'settlement':107 'shape':199 'simpli':149 'spars':140 'specifi':59 'structur':69 'stub':163 'success':160 'support':115 'swap':4,18,43,72 'token':3,17 'tron':102 'true':161 'two':86 'usdc':89 'usdc-base' 'usdt':100 'usdt-tron' 'use':119 'version':81 'via':7,21,51,77 'whale swap tracker' 'x402':13,27,79,146 'x402-payment'","prices":[{"id":"632380e5-a2b6-4189-a4dc-1acdb94db777","listingId":"7ec3c8f6-99bf-4e8c-a0c4-c92b729bdab8","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","amount":"5000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:36.266Z"}],"sources":[{"listingId":"7ec3c8f6-99bf-4e8c-a0c4-c92b729bdab8","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/base/monitor/large-swaps","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:36.266Z","lastSeenAt":"2026-04-22T09:02:30.834Z"}],"details":{"listingId":"7ec3c8f6-99bf-4e8c-a0c4-c92b729bdab8","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/base/monitor/large-swaps \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\n  -d '{\"chain\": \"base\"}'","exampleRequest":{"chain":"base"},"exampleResponse":{"data":{},"success":true},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns an x402 v2 challenge with USDC on Base (amount 10000 = $0.01) and USDT on Tron (amount 10000 = $0.01).","source_url":"https://bridge.eruditepay.com/v1/base/monitor/large-swaps"},{"claim":"The provider is Erudite Intelligence LLC, a FinCEN MSB registered entity (BSA ID 31000324258137).","source_url":"https://bridge.eruditepay.com"},{"claim":"EruditePay Bridge supports 20 blockchains and charges 0.5% per settlement with free verification.","source_url":"https://bridge.eruditepay.com"},{"claim":"The Coinbase CDP facilitator is used for Base chain payments.","source_url":"https://bridge.eruditepay.com/v1/base/monitor/large-swaps"}],"useCases":["Detect large token swaps on Base for whale-watching dashboards","Feed large-swap signals into automated trading or risk management systems","Monitor DEX activity for unusual large trades as part of compliance or analytics pipelines","Integrate real-time large-swap data into AI agents that track on-chain market movements"],"bestFor":["AI agents needing pay-per-call access to large-swap data on Base","Developers building whale-tracking or DEX analytics tools","On-chain analysts monitoring significant swap activity without monthly subscriptions"],"notFor":["Historical swap data queries (endpoint appears to be for current/recent monitoring only)","Monitoring chains other than Base (the endpoint URL is chain-specific)","Users who need detailed documentation before integrating — response schema is undocumented"],"kindDetails":{},"updatedAt":"2026-04-22T01:52:10.929Z"}}