{"id":"2cbf6e05-0691-4643-9095-a7b303b637e2","shortId":"7FjfDY","kind":"x402","title":"Query smart contract data on Base via x402-paid crypto intelligence endpoint.","tagline":"Query smart contract data on Base via x402-paid crypto intelligence endpoint.","description":"This x402-protected endpoint from Erudite Intelligence LLC provides crypto data intelligence by accepting a smart contract address and returning data about it. The endpoint accepts POST requests with a JSON body containing an `address` field (a contract address) and returns a JSON response with a `success` boolean and a `data` object.\n\nPayment is handled via the x402 protocol (version 2) with two accepted payment options: USDC on Base (eip155:8453) or USDT on Tron (tron:728126428), both priced at 10,000 base units per call — which equals $0.01 (one cent) given 6-decimal stablecoins. The facilitator is Coinbase CDP's x402 endpoint for the Base option. The provider, Erudite Intelligence LLC, also operates the EruditePay x402 Bridge, a multi-chain payment facilitator.\n\nDocumentation is sparse: the endpoint description is simply \"Crypto data intelligence\" and the example output is a generic `{\"success\": true, \"data\": {}}` stub. There is no detailed documentation available at the provider's /docs path, and the exact fields returned in the `data` object are unspecified. The schema confirms the input requires a contract address string, but the scope of intelligence returned (ABI, token metadata, transaction history, etc.) is not documented.","tags":[],"capabilities":["smart-contract-lookup","crypto-data-intelligence","x402-payment","base-chain","tron-payment","contract-address-query"],"categories":["crypto","blockchain","data"],"synonyms":["contract data API","smart contract info","blockchain contract lookup","crypto contract intelligence","on-chain contract data","EruditePay contract call"],"warnings":["No documentation available — /docs returns endpoint_not_found","Output schema is a stub: example data object is empty with no field descriptions","Exact nature of 'crypto data intelligence' returned is unspecified","Input schema suggests EVM-style addresses but endpoint path says 'base' — unclear if other chains' contracts are supported"],"endpointUrl":"https://bridge.eruditepay.com/v1/base/contract/call","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":"0.400","qualityRationale":"The endpoint is live (402 challenge captured) with a valid x402v2 payment structure and basic input/output schema. However, documentation is effectively absent — the /docs path returns 404, the output example is a stub with an empty data object, and the description is a vague three-word phrase. The actual intelligence returned is 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'0.01':116 '000':109 '10':108 '2':88 '6':120 '728126428':104 '8453':98 'EruditePay contract call' 'abi':213 'accept':41,53,91 'address':45,62,66,205 'also':140 'avail':179 'base':6,19,96,110,133 'base-chain' 'blockchain contract lookup' 'bodi':59 'boolean':75 'bridg':145 'call':113 'cdp':127 'cent':118 'chain':149 'coinbas':126 'confirm':199 'contain':60 'contract':3,16,44,65,204 'contract data API' 'contract-address-query' 'crypto':11,24,37,160 'crypto contract intelligence' 'crypto-data-intelligence' 'data':4,17,38,48,78,161,172,193 'decim':121 'descript':157 'detail':177 'document':152,178,221 'eip155':97 'endpoint':13,26,31,52,130,156 'equal':115 'erudit':33,137 'eruditepay':143 'etc':218 'exact':188 'exampl':165 'facilit':124,151 'field':63,189 'generic':169 'given':119 'handl':82 'histori':217 'input':201 'intellig':12,25,34,39,138,162,211 'json':58,70 'llc':35,139 'metadata':215 'multi':148 'multi-chain':147 'object':79,194 'on-chain contract data' 'one':117 'oper':141 'option':93,134 'output':166 'paid':10,23 'path':185 'payment':80,92,150 'per':112 'post':54 'price':106 'protect':30 'protocol':86 'provid':36,136,182 'queri':1,14 'request':55 'requir':202 'respons':71 'return':47,68,190,212 'schema':198 'scope':209 'simpli':159 'smart':2,15,43 'smart contract info' 'smart-contract-lookup' 'spars':154 'stablecoin':122 'string':206 'stub':173 'success':74,170 'token':214 'transact':216 'tron':102,103 'tron-payment' 'true':171 'two':90 'unit':111 'unspecifi':196 'usdc':94 'usdt':100 'version':87 'via':7,20,83 'x402':9,22,29,85,129,144 'x402-paid':8,21 'x402-payment' 'x402-protected':28","prices":[{"id":"a11b95ab-aea7-40aa-8890-f439bfe61a70","listingId":"2cbf6e05-0691-4643-9095-a7b303b637e2","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":"2026-04-21T18:32:37.331Z"}],"sources":[{"listingId":"2cbf6e05-0691-4643-9095-a7b303b637e2","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/base/contract/call","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:37.331Z","lastSeenAt":"2026-04-22T05:32:29.549Z"}],"details":{"listingId":"2cbf6e05-0691-4643-9095-a7b303b637e2","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/base/contract/call \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\n  -d '{\"address\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\"}'","exampleRequest":{"address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"exampleResponse":{"data":{},"success":true},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns x402 v2 challenge with USDC on Base and USDT on Tron payment options at 10000 base units each","source_url":"https://bridge.eruditepay.com/v1/base/contract/call"},{"claim":"Provider is Erudite Intelligence LLC, operates EruditePay x402 Bridge facilitator","source_url":"https://bridge.eruditepay.com"},{"claim":"Coinbase CDP x402 endpoint is listed as facilitator for Base payment option","source_url":"https://bridge.eruditepay.com/v1/base/contract/call"},{"claim":"EruditePay Bridge is FinCEN MSB registered with BSA ID 31000324258137","source_url":"https://bridge.eruditepay.com"}],"useCases":["Querying metadata or intelligence about a smart contract by address","Automated agent workflows that need on-chain contract information before interacting","Building dashboards that aggregate contract-level data across protocols"],"bestFor":["Agents needing per-call contract intelligence without API key management","Workflows that already support x402 payment protocol","Developers who want to pay per query with USDC on Base or USDT on Tron"],"notFor":["Bulk or high-volume contract scanning (at $0.01/call costs add up)","Use cases requiring well-documented, strongly-typed response schemas","Querying non-EVM contract addresses (input schema suggests EVM-style 0x addresses)"],"kindDetails":{},"updatedAt":"2026-04-22T02:09:40.135Z"}}