{"id":"986dde94-9829-43b7-8be4-17ef02f7b4b5","shortId":"GXjvaQ","kind":"x402","title":"NFT collection floor-price data via x402 micropayment on Base, $0.02 per request.","tagline":"NFT collection floor-price data via x402 micropayment on Base, $0.02 per request.","description":"This endpoint returns the floor price for NFT collection #37 hosted on lowpaymentfee.com. It is part of a broader suite of pay-per-call APIs offered by the same provider, spanning data analytics, AI/ML inference, finance/Web3 data, and utility services. All endpoints use the x402 protocol for payment, settling in USDC on the Base network at $0.02 per request.\n\nThe specific endpoint `/api/v1/collections/37/floor` is accessed via HTTP POST and returns JSON. The x402 challenge confirms the endpoint is live, accepting USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) with a max amount of 20,000 base units (i.e., $0.02 given USDC's 6 decimals). Payment is made to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout.\n\nDocumentation is extremely sparse. The provider's landing page lists many API routes but provides no request/response schemas, parameter descriptions, or example payloads. The docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further content. The specific collection ID 37 is not described anywhere, so it is unclear which NFT collection this refers to or what fields the response contains. Use with caution until more documentation is available.","tags":[],"capabilities":["nft-floor-price","x402-payment","usdc-base","pay-per-request","json-api"],"categories":["web3","nft","finance"],"synonyms":["NFT floor price","collection floor","NFT market data","floor price API","crypto collectibles data","x402 NFT API"],"warnings":["No API documentation available — docs, pricing, and API pages all render only 'Connect wallet' with no content.","No request or response schema provided; the output format is unknown.","Collection ID 37 is not described anywhere; it is unclear which NFT collection this endpoint covers.","The endpoint path suggests NFT collection data, but the provider's landing page does not list this specific route among its advertised APIs."],"endpointUrl":"https://lowpaymentfee.com/api/v1/collections/37/floor","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/collections/37/floor","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no documentation, no request/response schema, no examples, and no indication of what collection 37 represents. This is effectively a stub 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'0.02':12,26,86,123 '000':119 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':134 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':112 '20':118 '300':137 '37':38,184 '6':127 'NFT floor price' 'NFT market data' 'accept':109 'access':94 'address':133 'ai/ml':63 'amount':116 'analyt':62 'anywher':188 'api':54,151,167 'avail':212 'base':11,25,83,120 'broader':47 'call':53 'caution':207 'challeng':103 'collect':2,16,37,182,195 'collection floor' 'confirm':104 'connect':173 'contain':204 'content':179 'contract':111 'crypto collectibles data' 'data':6,20,61,66 'decim':128 'describ':187 'descript':159 'doc':164 'document':140,210 'endpoint':30,71,91,106 'exampl':161 'extrem':142 'field':201 'finance/web3':65 'floor':4,18,33 'floor price API' 'floor-pric':3,17 'given':124 'host':39 'http':96 'i.e':122 'id':183 'infer':64 'json':100 'json-api' 'land':147 'list':149 'live':108 'lowpaymentfee.com':41 'made':131 'mani':150 'max':115 'micropay':9,23 'network':84 'nft':1,15,36,194 'nft-floor-price' 'offer':55 'page':148,168 'paramet':158 'part':44 'pay':51 'pay-per-cal':50 'pay-per-request' 'payload':162 'payment':77,129 'per':13,27,52,87 'post':97 'price':5,19,34,165 'prompt':175 'protocol':75 'provid':59,145,154 'refer':197 'render':170 'request':14,28,88 'request/response':156 'respons':203 'return':31,99 'rout':152 'schema':157 'second':138 'servic':69 'settl':78 'span':60 'spars':143 'specif':90,181 'suit':48 'timeout':139 'unclear':192 'unit':121 'usdc':80,110,125 'usdc-base' 'use':72,205 'util':68 'via':7,21,95 'wallet':174 'x402':8,22,74,102 'x402 NFT API' 'x402-payment'","prices":[{"id":"ed4a9bc1-05c6-4fc9-b965-7dd05d86b8d7","listingId":"986dde94-9829-43b7-8be4-17ef02f7b4b5","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/collections/37/floor","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-19T05:29:50.544Z"}],"sources":[{"listingId":"986dde94-9829-43b7-8be4-17ef02f7b4b5","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/collections/37/floor","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-19T05:29:50.544Z","lastSeenAt":"2026-04-22T23:02:26.797Z"}],"details":{"listingId":"986dde94-9829-43b7-8be4-17ef02f7b4b5","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/collections/37/floor \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns HTTP 402 with an x402 challenge requiring USDC payment on Base network.","source_url":"https://lowpaymentfee.com/api/v1/collections/37/floor"},{"claim":"Max amount required is 20000 base units of USDC (6 decimals), equaling $0.02 per request.","source_url":"https://lowpaymentfee.com/api/v1/collections/37/floor"},{"claim":"The provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"USDC contract address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base.","source_url":"https://lowpaymentfee.com/api/v1/collections/37/floor"}],"useCases":["Querying the current floor price of a specific NFT collection programmatically","Building trading bots or dashboards that need real-time NFT floor data","Agents that compare floor prices across collections before making purchase decisions"],"bestFor":["Developers needing on-demand NFT floor price lookups without API key management","AI agents with x402-compatible wallets on Base","Low-volume, pay-as-you-go NFT data consumers"],"notFor":["Users who need bulk historical NFT price data (no batch or historical endpoint documented)","Anyone requiring detailed collection metadata, trait data, or sales history beyond floor price"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:24.55Z"},"updatedAt":"2026-04-22T23:02:26.797Z"}}