{"id":"94170b32-784a-452b-8e29-a1c15458da88","shortId":"gghtMP","kind":"x402","title":"Stock market quote for NKE via x402 micropayment on Base, $0.02 per request in USDC.","tagline":"Stock market quote for NKE via x402 micropayment on Base, $0.02 per request in USDC.","description":"This endpoint provides a real-time stock market quote for the ticker NKE (Nike, Inc.) through the x402 payment protocol. It is part of a broader suite of pay-per-call APIs hosted at lowpaymentfee.com, covering data analytics, AI/ML inference, finance, crypto, and utility services. Each request costs $0.02 in USDC on the Base network, with no API keys, rate limits, or subscriptions required.\n\nThe specific endpoint at `/api/v1/market/quote/NKE` accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: the server responds with a 402 challenge containing the USDC asset address on Base (`0x8335…2913`) and a `maxAmountRequired` of 20,000 base units (i.e., $0.02 given USDC's 6 decimals). The caller attaches an `X-PAYMENT` header with a signed payment to the specified `payTo` address, and the server returns the quote data.\n\nDocumentation on the site is extremely sparse — the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further detail. There is no OpenAPI schema, no example request/response payloads, and no description of the response fields. The endpoint is confirmed live (402 challenge captured), but the exact shape of the returned market quote data is unknown.","tags":[],"capabilities":["stock-quote","market-data","x402-payment","usdc-base","pay-per-request","no-api-key","micropayment"],"categories":["finance","market-data"],"synonyms":["stock price API","NKE quote","Nike stock quote","equity market data","real-time stock price","ticker quote","x402 finance API"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","Docs, pricing, and API pages render only 'Connect wallet' with no usable content","The endpoint path suggests a single-ticker quote (NKE); it is unclear whether other tickers are supported at similar paths","No example request or response bodies could be found"],"endpointUrl":"https://lowpaymentfee.com/api/v1/market/quote/NKE","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/market/quote/NKE","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format, no example payloads, and the docs pages are empty stubs. The actual content of the market quote response is entirely 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'0.02':11,26,81,141 '000':137 '0x8335':130 '20':136 '2913':131 '402':121,216 '6':145 'NKE quote' 'Nike stock quote' 'accept':102 'address':127,163 'ai/ml':71 'analyt':70 'api':64,90,182 'asset':126 'attach':149 'base':10,25,86,129,138 'broader':57 'call':63 'caller':148 'captur':218 'challeng':122,217 'confirm':214 'connect':188 'contain':123 'cost':80 'cover':68 'crypto':74 'data':69,170,228 'decim':146 'descript':206 'detail':194 'doc':179 'document':171 'endpoint':32,99,212 'equity market data' 'exact':221 'exampl':201 'extrem':176 'field':210 'financ':73 'given':142 'handl':110 'header':154 'host':65 'i.e':140 'inc':46 'infer':72 'inlin':111 'json':107 'key':91 'limit':93 'live':215 'lowpaymentfee.com':67 'market':2,17,39,226 'market-data' 'maxamountrequir':134 'micropay':8,23 'micropayment' 'network':87 'nike':45 'nke':5,20,44 'no-api-key' 'openapi':198 'page':183 'part':54 'pay':61 'pay-per-cal':60 'pay-per-request' 'payload':203 'payment':50,108,153,158 'payto':162 'per':12,27,62 'post':103 'price':180 'prompt':190 'protocol':51,115 'provid':33 'quot':3,18,40,169,227 'rate':92 'real':36 'real-tim':35 'real-time stock price' 'render':185 'request':13,28,79,104 'request/response':202 'requir':96 'respond':118 'respons':209 'return':106,167,225 'schema':199 'server':117,166 'servic':77 'shape':222 'sign':157 'site':174 'spars':177 'specif':98 'specifi':161 'stock':1,16,38 'stock price API' 'stock-quote' 'subscript':95 'suit':58 'ticker':43 'ticker quote' 'time':37 'unit':139 'unknown':230 'usdc':15,30,83,125,143 'usdc-base' 'util':76 'via':6,21,112 'wallet':189 'x':152 'x-payment':151 'x402':7,22,49,114 'x402 finance API' 'x402-payment'","prices":[{"id":"b7a1e5fb-289c-42f9-b1ac-84882e2d6b9f","listingId":"94170b32-784a-452b-8e29-a1c15458da88","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/market/quote/NKE","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:33:18.651Z"}],"sources":[{"listingId":"94170b32-784a-452b-8e29-a1c15458da88","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/market/quote/NKE","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:18.651Z","lastSeenAt":"2026-04-22T10:01:08.958Z"}],"details":{"listingId":"94170b32-784a-452b-8e29-a1c15458da88","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/market/quote/NKE \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-signed-payment>\"","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 in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/market/quote/NKE"},{"claim":"USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/market/quote/NKE"},{"claim":"All APIs on the site 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 site lists finance endpoints including price feeds, exchange rates, token quotes, and gas estimates","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching a real-time stock quote for Nike (NKE) in an automated trading or research pipeline","Integrating pay-per-call market data into an AI agent workflow without managing API keys","Demonstrating x402 micropayment protocol usage for financial data access"],"bestFor":["Agents or bots that need on-demand stock quotes without subscription overhead","Developers experimenting with x402 micropayment-gated APIs","Low-volume or sporadic market data consumers who prefer pay-per-request pricing"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk data feeds","Users who need comprehensive financial data (historical, options, fundamentals) — only a single-ticker quote endpoint is documented","Anyone without a Base-network USDC wallet or x402-compatible client"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T18:32:45.746Z"},"updatedAt":"2026-04-22T10:01:08.958Z"}}