{"id":"0f8b9a12-8f33-448c-b784-67633b4ae244","shortId":"fR24zC","kind":"x402","title":"Query liquidity depth for token pools on Base via x402-paid crypto data intelligence endpoint.","tagline":"Query liquidity depth for token pools on Base via x402-paid crypto data intelligence endpoint.","description":"This endpoint, hosted by Erudite Intelligence LLC on their EruditePay Bridge infrastructure, provides liquidity depth data for token pools on the Base network. It accepts a POST request with a JSON body containing a token address (or pair identifier) and returns structured JSON with liquidity depth information. The endpoint is gated behind the x402 payment protocol (v2), requiring per-call payment of 0.01 USDC on Base (eip155:8453) or 0.01 USDT on Tron before data is served.\n\nThe x402 challenge is live and returns a valid 402 response with two accepted payment options: USDC on Base settled via the Coinbase CDP facilitator, or USDT on Tron. The provider describes the endpoint's purpose as \"Crypto data intelligence.\" The Bazaar schema extension specifies the input as a POST with a JSON body containing a `token` field (a token address or pair identifier), and the output as a JSON object with `success` and `data` fields.\n\nDocumentation is sparse — the provider's /docs path returns a 404, and no OpenAPI spec is available. The exact structure of the returned `data` object is not documented beyond an empty example (`{}`). The endpoint appears to be one of potentially several crypto data intelligence endpoints offered by EruditePay, but details on the depth and breadth of the liquidity data returned are not available from the crawled material.","tags":[],"capabilities":["liquidity-depth-query","token-pool-analysis","x402-payment-gated","base-network","tron-payment","usdc-payment","usdt-payment","crypto-data-intelligence","json-api"],"categories":["defi","crypto-data"],"synonyms":["pool liquidity","token depth","DEX liquidity","order book depth","Base pool data","liquidity analysis","token pool depth","crypto pool info"],"warnings":["No OpenAPI or detailed API documentation available — /docs returns 404","Output data structure is completely undocumented; the example shows only an empty object {}","The exact liquidity metrics returned (e.g., depth at price levels, total TVL, bid/ask spread) are unknown","Provider description 'Crypto data intelligence' is vague and does not specify what liquidity-depth data includes"],"endpointUrl":"https://bridge.eruditepay.com/v1/base/pool/liquidity-depth","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x24c5da6267AEbEBfCBf7B325753C5B2538A5B09B","amount":"3000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t","extra":{"name":"TronTransferAuthorization","version":"1","wrapper":"THGkLBrLY1G5VovZjjK1jP9upyxRdMNL3b"},"payTo":"TSevuRZFjpckeMSSDhQFoiAkPCkckuE5TP","amount":"3000","scheme":"exact","network":"tron:728126428","maxTimeoutSeconds":300}]},"qualityScore":"0.450","qualityRationale":"The x402 challenge is live and well-formed with clear pricing and payment options. However, documentation is effectively absent (no OpenAPI spec, /docs returns 404), the output example is an empty object with no field descriptions, and the actual data returned by the endpoint is unknown. The endpoint's purpose is only described as 'Crypto data intelligence' with no further 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'0.01':96,103 '402':120 '404':197 '8453':101 'Base pool data' 'DEX liquidity' 'accept':57,124 'address':68,171 'appear':221 'avail':203,249 'base':8,24,54,99,129 'base-network' 'bazaar':152 'behind':84 'beyond':215 'bodi':64,164 'breadth':241 'bridg':43 'call':93 'cdp':134 'challeng':113 'coinbas':133 'contain':65,165 'crawl':252 'crypto':13,29,148,228 'crypto pool info' 'crypto-data-intelligence' 'data':14,30,48,108,149,185,210,229,245 'depth':3,19,47,78,239 'describ':142 'detail':236 'document':187,214 'eip155':100 'empti':217 'endpoint':16,32,34,81,144,220,231 'erudit':37 'eruditepay':42,234 'exact':205 'exampl':218 'extens':154 'facilit':135 'field':168,186 'gate':83 'host':35 'identifi':71,174 'inform':79 'infrastructur':44 'input':157 'intellig':15,31,38,150,230 'json':63,75,163,180 'json-api' 'liquid':2,18,46,77,244 'liquidity analysis' 'liquidity-depth-query' 'live':115 'llc':39 'materi':253 'network':55 'object':181,211 'offer':232 'one':224 'openapi':200 'option':126 'order book depth' 'output':177 'paid':12,28 'pair':70,173 'path':194 'payment':87,94,125 'per':92 'per-cal':91 'pool':6,22,51 'pool liquidity' 'post':59,160 'potenti':226 'protocol':88 'provid':45,141,191 'purpos':146 'queri':1,17 'request':60 'requir':90 'respons':121 'return':73,117,195,209,246 'schema':153 'serv':110 'settl':130 'sever':227 'spars':189 'spec':201 'specifi':155 'structur':74,206 'success':183 'token':5,21,50,67,167,170 'token depth' 'token pool depth' 'token-pool-analysis' 'tron':106,139 'tron-payment' 'two':123 'usdc':97,127 'usdc-payment' 'usdt':104,137 'usdt-payment' 'v2':89 'valid':119 'via':9,25,131 'x402':11,27,86,112 'x402-paid':10,26 'x402-payment-gated'","prices":[{"id":"b07fa884-2f89-4ca3-bf2c-d446502bf396","listingId":"0f8b9a12-8f33-448c-b784-67633b4ae244","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0x24c5da6267AEbEBfCBf7B325753C5B2538A5B09B","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x24c5da6267AEbEBfCBf7B325753C5B2538A5B09B","amount":"3000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t","extra":{"name":"TronTransferAuthorization","version":"1","wrapper":"THGkLBrLY1G5VovZjjK1jP9upyxRdMNL3b"},"payTo":"TSevuRZFjpckeMSSDhQFoiAkPCkckuE5TP","amount":"3000","scheme":"exact","network":"tron:728126428","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:36.836Z"}],"sources":[{"listingId":"0f8b9a12-8f33-448c-b784-67633b4ae244","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/base/pool/liquidity-depth","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:36.836Z","lastSeenAt":"2026-04-22T07:02:22.687Z"}],"details":{"listingId":"0f8b9a12-8f33-448c-b784-67633b4ae244","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/base/pool/liquidity-depth \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\n  -d '{\"token\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\"}'","exampleRequest":{"token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"exampleResponse":{"data":{},"success":true},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns x402 v2 challenge with USDC on Base (amount 10000 = $0.01) and USDT on Tron as payment options","source_url":"https://bridge.eruditepay.com/v1/base/pool/liquidity-depth"},{"claim":"Provider is Erudite Intelligence LLC, FinCEN MSB registered (BSA ID 31000324258137)","source_url":"https://bridge.eruditepay.com"},{"claim":"EruditePay Bridge supports 20 blockchains and charges 0.5% per settlement","source_url":"https://bridge.eruditepay.com"},{"claim":"Coinbase CDP facilitator is used for Base USDC payments","source_url":"https://bridge.eruditepay.com/v1/base/pool/liquidity-depth"},{"claim":"Input schema requires a 'token' field described as 'Token address or pair identifier'","source_url":"https://bridge.eruditepay.com/v1/base/pool/liquidity-depth"}],"useCases":["Querying real-time liquidity depth for a specific token pool on Base before executing a trade","Automated agents assessing slippage risk by checking pool liquidity depth","Portfolio management tools monitoring liquidity conditions across token pairs","DeFi aggregators comparing liquidity across pools to find optimal routing"],"bestFor":["Agents needing on-demand liquidity depth data for Base token pools","DeFi applications requiring per-call paid crypto intelligence","Automated trading systems that need pool depth checks before swaps"],"notFor":["Historical liquidity analytics or time-series data (no evidence of historical support)","Non-crypto or traditional finance liquidity queries","Users who need free or subscription-based access (this is strictly per-call paid)"],"kindDetails":{},"updatedAt":"2026-04-22T02:02:46.994Z"}}