{"id":"da98c31b-9a67-45b2-ace3-27dcb0852549","shortId":"jEzD7m","kind":"x402","title":"NFT collection statistics on Base via x402 micropayment (USDC/USDT)","tagline":"NFT collection statistics on Base via x402 micropayment (USDC/USDT)","description":"This x402-enabled endpoint returns NFT collection statistics for collections on the Base blockchain. Operated by Erudite Intelligence LLC, it accepts a POST request with a JSON body containing a `collection` field (an NFT collection address or slug) and returns collection-level stats in JSON format.\n\nThe endpoint is live and returns a standard x402 v2 payment challenge. It accepts two payment methods: USDC on Base (eip155:8453) at 10,000 base units ($0.01 per call) and USDT on Tron (tron:728126428) at 10,000 base units ($0.01 per call). Payment is facilitated through the EruditePay x402 Bridge, which supports 20 blockchains and uses Coinbase CDP as one of its facilitators.\n\nDocumentation is sparse — the endpoint description in the challenge is simply \"Crypto data intelligence\" and the output example is a generic `{\"success\": true, \"data\": {}}` stub. There is no detailed documentation for this specific data endpoint (the provider's /docs path returns a 404). The exact fields returned in the `data` object for collection stats are not documented, so consumers should expect to discover the response shape empirically.","tags":[],"capabilities":["nft-collection-stats","base-chain","x402-payment","usdc-payment","usdt-payment","crypto-data","post-json-api"],"categories":["crypto","nft","data"],"synonyms":["NFT floor price","NFT collection analytics","Base NFT stats","collection statistics API","NFT market data","crypto data intelligence","EruditePay NFT"],"warnings":["Output schema is a generic stub — actual response fields for collection stats are undocumented","Provider docs path (/docs) returns 404; no detailed API documentation available","The example output {\"success\": true, \"data\": {}} may not reflect real response structure"],"endpointUrl":"https://bridge.eruditepay.com/v1/base/nft/collection-stats","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 endpoint is live (402 challenge captured) with a clear schema for input, but the output is a generic stub with no documented fields. No dedicated docs exist for this data endpoint. Pricing is clear ($0.01/call). The sparse output example and missing documentation significantly limit 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'0.01':94,108 '000':91,105 '10':90,104 '20':121 '404':174 '728126428':102 '8453':88 'Base NFT stats' 'EruditePay NFT' 'NFT collection analytics' 'NFT floor price' 'NFT market data' 'accept':40,80 'address':55 'base':5,14,32,86,92,106 'base-chain' 'blockchain':33,122 'bodi':47 'bridg':118 'call':96,110 'cdp':126 'challeng':78,140 'coinbas':125 'collect':2,11,26,29,50,54,61,184 'collection statistics API' 'collection-level':60 'consum':190 'contain':48 'crypto':143 'crypto data intelligence' 'crypto-data' 'data':144,155,165,181 'descript':137 'detail':160 'discov':194 'document':132,161,188 'eip155':87 'empir':198 'enabl':22 'endpoint':23,68,136,166 'erudit':36 'eruditepay':116 'exact':176 'exampl':149 'expect':192 'facilit':113,131 'field':51,177 'format':66 'generic':152 'intellig':37,145 'json':46,65 'level':62 'live':70 'llc':38 'method':83 'micropay':8,17 'nft':1,10,25,53 'nft-collection-stats' 'object':182 'one':128 'oper':34 'output':148 'path':171 'payment':77,82,111 'per':95,109 'post':42 'post-json-api' 'provid':168 'request':43 'respons':196 'return':24,59,72,172,178 'shape':197 'simpli':142 'slug':57 'spars':134 'specif':164 'standard':74 'stat':63,185 'statist':3,12,27 'stub':156 'success':153 'support':120 'tron':100,101 'true':154 'two':81 'unit':93,107 'usdc':84 'usdc-payment' 'usdc/usdt':9,18 'usdt':98 'usdt-payment' 'use':124 'v2':76 'via':6,15 'x402':7,16,21,75,117 'x402-enabled':20 'x402-payment'","prices":[{"id":"e26fa6a7-9ae8-4aa6-8e29-bbb7ff6e25b2","listingId":"da98c31b-9a67-45b2-ace3-27dcb0852549","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":"2026-04-21T18:32:37.268Z"}],"sources":[{"listingId":"da98c31b-9a67-45b2-ace3-27dcb0852549","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/base/nft/collection-stats","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:37.268Z","lastSeenAt":"2026-04-22T05:32:29.487Z"}],"details":{"listingId":"da98c31b-9a67-45b2-ace3-27dcb0852549","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/base/nft/collection-stats \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\n  -d '{\"collection\": \"0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D\"}'","exampleRequest":{"collection":"0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D"},"exampleResponse":{"data":{},"success":true},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns x402 v2 challenge with USDC on Base at 10,000 base units and USDT on Tron at 10,000 base units","source_url":"https://bridge.eruditepay.com/v1/base/nft/collection-stats"},{"claim":"Provider is Erudite Intelligence LLC, FinCEN MSB registered","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":"Input schema requires a 'collection' field described as 'NFT collection address or slug'","source_url":"https://bridge.eruditepay.com/v1/base/nft/collection-stats"}],"useCases":["Retrieve floor price and volume stats for NFT collections on Base","Feed NFT collection metrics into trading bots or portfolio dashboards","Monitor NFT market trends programmatically with per-call micropayments"],"bestFor":["Agents needing on-demand NFT collection data on Base without subscriptions","Developers building NFT analytics dashboards with pay-per-call pricing","Automated workflows that need lightweight, micropayment-gated crypto data"],"notFor":["Bulk historical NFT data ingestion (per-call pricing adds up quickly)","NFT data on chains other than Base (this endpoint is Base-specific)","Users who need detailed API documentation before integrating"],"kindDetails":{},"updatedAt":"2026-04-22T02:10:07.852Z"}}