{"id":"a446871d-e7f1-4a07-b7d4-e3d9c072078a","shortId":"myEAvC","kind":"x402","title":"NFT collection floor-price endpoint, pay-per-call via x402 on Base (USDC).","tagline":"NFT collection floor-price endpoint, pay-per-call via x402 on Base (USDC).","description":"This endpoint at lowpaymentfee.com returns the floor price for NFT collection #32. It is part of a broader platform offering dozens of pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all settled via the x402 protocol on the Base network using USDC.\n\nThe specific endpoint `/api/v1/collections/32/floor` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0.02 USD per request, since USDC uses 6 decimals). Payment is made inline via the X-PAYMENT header; no API keys, accounts, or rate limits are required. The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, with a 300-second timeout window.\n\nDocumentation beyond the landing page is extremely sparse — the /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no additional technical content. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint is confirmed live (returns a proper 402 challenge), but the actual response format and the meaning of \"collection 32\" are unknown. The platform lists many other endpoints at $0.02 each across categories like sentiment analysis, text summarization, geocoding, and crypto gas estimates, but none have publicly documented schemas.","tags":[],"capabilities":["nft-floor-price","x402-payment","usdc-settlement","base-network","pay-per-request","json-api"],"categories":["finance","nft","web3"],"synonyms":["NFT floor price","collection floor price","NFT market data","x402 NFT API","pay-per-call NFT data","lowpaymentfee"],"warnings":["No API documentation available — /docs, /pricing, /api, and /README all return only a wallet-connect prompt","No request or response schema documented; actual payload format is unknown","The identity of 'collection 32' is not documented anywhere in the crawled material","The platform lists many endpoints but none appear to have public technical docs"],"endpointUrl":"https://lowpaymentfee.com/api/v1/collections/32/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/32/floor","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is no OpenAPI spec, no request/response schema, no examples, and no meaningful documentation. The purpose of 'collection 32' is undocumented. Effectively a stub 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'/api/v1/collections/32/floor':83 '/docs':156 '/pricing':157 '/readme':160 '0.02':104,218 '000':99 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':138 '20':98 '300':143 '32':42,208 '402':196 '6':111 'NFT floor price' 'NFT market data' 'accept':84 'account':126 'across':220 'actual':200 'addit':171 'address':137 'advertis':93 'ai/ml':61 'analysi':224 'analyt':60 'api':57,124 'avail':187 'base':14,29,76,100,140 'base-network' 'beyond':148 'broader':48 'call':10,25 'categori':221 'challeng':92,197 'collect':2,17,41,207 'collection floor price' 'confirm':191 'connect':166 'content':173 'cost':96 'crypto':229 'data':59,64 'decim':112 'document':147,182,236 'dozen':51 'endpoint':6,21,32,82,189,216 'estim':231 'exampl':185 'extrem':153 'finance/web3':63 'floor':4,19,37 'floor-pric':3,18 'format':202 'gas':230 'geocod':227 'header':122 'infer':62 'infrastructur':66 'inlin':116 'json':89 'json-api' 'key':125 'land':150 'like':222 'limit':129 'list':213 'live':192 'lowpaymentfee' 'lowpaymentfee.com':34 'made':115 'mani':214 'maximum':95 'mean':205 'network':77 'nft':1,16,40 'nft-floor-price' 'none':233 'offer':50 'openapi':177 'page':151,161 'part':45 'pay':8,23,54 'pay-per-cal':7,22 'pay-per-call NFT data' 'pay-per-request':53 'payload':186 'payment':113,121,133 'per':9,24,55,106 'platform':49,212 'post':85 'price':5,20,38 'prompt':168 'proper':195 'protocol':73 'public':235 'rate':128 'render':163 'request':56,86,107 'request/response':180 'requir':131 'respons':201 'return':35,88,193 'schema':181,237 'second':144 'sent':135 'sentiment':223 'settl':69 'sinc':108 'span':58 'spars':154 'spec':178 'specif':81 'summar':226 'technic':172 'text':225 'timeout':145 'unit':101 'unknown':210 'usd':105 'usdc':15,30,79,103,109 'usdc-settlement' 'use':78,110 'util':67 'via':11,26,70,117 'wallet':167 'window':146 'x':120 'x-payment':119 'x402':12,27,72,91 'x402 NFT API' 'x402-payment'","prices":[{"id":"7eddc841-c957-4fa4-ac59-b049899078eb","listingId":"a446871d-e7f1-4a07-b7d4-e3d9c072078a","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/32/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":"2026-04-19T00:29:49.071Z"}],"sources":[{"listingId":"a446871d-e7f1-4a07-b7d4-e3d9c072078a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/collections/32/floor","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-19T00:29:49.071Z","lastSeenAt":"2026-04-23T00:32:38.889Z"}],"details":{"listingId":"a446871d-e7f1-4a07-b7d4-e3d9c072078a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/collections/32/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 a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/collections/32/floor"},{"claim":"All endpoints on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/collections/32/floor"}],"useCases":["Fetching the current floor price of a specific NFT collection","Monitoring NFT market conditions programmatically","Building trading bots or dashboards that need real-time floor prices"],"bestFor":["Agents needing on-demand NFT floor prices without API key management","Micropayment-based access to NFT market data","Quick, keyless integration for crypto-native applications"],"notFor":["Bulk historical NFT data retrieval (no documented batch or historical endpoints)","Users who need detailed collection metadata beyond floor price","Anyone requiring comprehensive API documentation before integration"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:25.043Z"},"updatedAt":"2026-04-23T00:32:38.889Z"}}