{"id":"7afe8b4e-367f-4e36-aaab-f7784811a220","shortId":"5dsfJp","kind":"x402","title":"Pay-per-call stock quote API for AAPL via x402 on Base, settled in USDC at $0.02/request.","tagline":"Pay-per-call stock quote API for AAPL via x402 on Base, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides stock data for AAPL (Apple Inc.) behind an x402 paywall. It is part of a broader suite of pay-per-request APIs offered by the same provider, spanning data analytics, AI/ML inference, finance, crypto, and utility services. The specific endpoint `/api/v1/stocks/AAPL` is not listed on the provider's landing page among the advertised APIs, but it responds with a valid x402 402 challenge, confirming it is live.\n\nPayment is settled on the Base network using USDC (contract 0x8335…2913) via the \"exact\" scheme. The maxAmountRequired is 20,000 base units, which at 6 decimals equals $0.02 per request. No API keys or accounts are needed — callers attach an X-PAYMENT header with a valid x402 payment proof. The endpoint accepts POST requests and returns application/json.\n\nDocumentation is extremely thin. The provider's /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema, and no example payloads available. It is unclear what request body (if any) the POST expects, or what fields the stock data response contains. The endpoint appears to be part of a template-style deployment where many endpoints share the same $0.02 pricing and x402 configuration.","tags":[],"capabilities":["stock-data","pay-per-request","x402-payment","usdc-settlement","base-network","no-api-key","json-response"],"categories":["finance","data"],"synonyms":["AAPL stock price","Apple stock API","stock quote API","x402 stock data","pay-per-call finance API","crypto-paid stock endpoint"],"warnings":["No API documentation available — /docs, /pricing, /api, and /README all show only 'Connect wallet'","The /api/v1/stocks/AAPL endpoint is not listed among the provider's advertised APIs on the landing page","No request body schema or response schema is documented; callers must guess the payload format","Provider appears to be a template deployment with many generic endpoints — data quality/source is unknown"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/AAPL","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/stocks/AAPL","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 with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the /stocks/AAPL path isn't even listed among the provider's advertised endpoints. Effectively a stub with confirmed 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'/api/v1/stocks/aapl':85 '/docs':178 '/pricing':179 '/readme':182 '/request':19,38 '0.02':18,37,140,245 '000':132 '0x8335':122 '20':131 '2913':123 '402':106 '6':137 'AAPL stock price' 'Apple stock API' 'aapl':9,28,47 'accept':165 'account':147 'advertis':97 'ai/ml':75 'among':95 'analyt':74 'api':7,26,66,98,144 'appear':229 'appl':48 'application/json':170 'attach':151 'avail':207 'base':13,32,117,133 'base-network' 'behind':50 'bodi':213 'broader':59 'call':4,23 'caller':150 'challeng':107 'configur':249 'confirm':108 'connect':188 'contain':226 'content':194 'contract':121 'crypto':78 'crypto-paid stock endpoint' 'data':45,73,224 'decim':138 'deploy':238 'document':171 'endpoint':40,84,164,228,241 'equal':139 'exact':126 'exampl':205 'expect':218 'extrem':173 'field':221 'financ':77 'header':156 'inc':49 'infer':76 'json-response' 'key':145 'land':93 'list':88 'live':111 'lowpaymentfee.com':42 'mani':240 'maxamountrequir':129 'need':149 'network':118 'no-api-key' 'offer':67 'openapi':198 'page':94,183 'part':56,232 'pay':2,21,63 'pay-per-cal':1,20 'pay-per-call finance API' 'pay-per-request':62 'payload':206 'payment':112,155,161 'paywal':53 'per':3,22,64,141 'post':166,217 'price':246 'prompt':190 'proof':162 'provid':43,71,91,176 'quot':6,25 'render':185 'request':65,142,167,212 'request/response':201 'respond':101 'respons':225 'return':169 'schema':202 'scheme':127 'servic':81 'settl':14,33,114 'share':242 'span':72 'spec':199 'specif':83 'stock':5,24,44,223 'stock quote API' 'stock-data' 'style':237 'substant':193 'suit':60 'templat':236 'template-styl':235 'thin':174 'unclear':210 'unit':134 'usdc':16,35,120 'usdc-settlement' 'use':119 'util':80 'valid':104,159 'via':10,29,124 'wallet':189 'x':154 'x-payment':153 'x402':11,30,52,105,160,248 'x402 stock data' 'x402-payment'","prices":[{"id":"d40e86b1-0598-4038-989b-65c9877ce0bb","listingId":"7afe8b4e-367f-4e36-aaab-f7784811a220","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/stocks/AAPL","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:33:15.072Z"}],"sources":[{"listingId":"7afe8b4e-367f-4e36-aaab-f7784811a220","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/AAPL","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:15.072Z","lastSeenAt":"2026-04-23T20:01:25.704Z"}],"details":{"listingId":"7afe8b4e-367f-4e36-aaab-f7784811a220","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/AAPL \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/stocks/AAPL"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/stocks/AAPL"},{"claim":"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":"Documentation pages (/docs, /pricing, /api, /README) render only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Fetching real-time or recent AAPL stock data without needing an API key or subscription","Agent-driven stock lookups where payment is handled programmatically via x402","Integrating Apple stock information into crypto-native or Web3 applications"],"bestFor":["Developers wanting keyless, pay-per-call access to AAPL stock data","AI agents that can settle micropayments on Base via x402","Quick one-off stock data lookups without account registration"],"notFor":["Bulk historical stock data downloads (no documented batch endpoint)","Users who need detailed API documentation or guaranteed SLA","Non-AAPL ticker lookups (this endpoint is hardcoded to AAPL)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T17:17:15.883Z"},"updatedAt":"2026-04-23T20:01:25.704Z"}}