{"id":"72962139-cfd7-4789-a566-0867ad5d8caf","shortId":"YbkMwj","kind":"x402","title":"Pay-per-call stock quote API for ticker BA, settled in USDC on Base via x402.","tagline":"Pay-per-call stock quote API for ticker BA, settled in USDC on Base via x402.","description":"This endpoint at lowpaymentfee.com provides stock data for the ticker BA (Boeing) via a simple POST request, paid per call using the x402 protocol. The price is $0.02 per request, settled in USDC on the Base network. No API keys or accounts are required — callers attach an x402 payment header and receive a JSON response.\n\nThe endpoint is part of a broader platform (lowpaymentfee.com) that offers dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance/crypto market data, and utility services, all at the same $0.02/request price point. The specific endpoint `/api/v1/stocks/BA` is not listed on the site's landing page catalog (which focuses on analytics, AI, finance, and utility categories), so it may be an unlisted or legacy route. The x402 challenge confirms it is live and accepting payments.\n\nPricing: The x402 challenge specifies a maxAmountRequired of 20000 base units of USDC (token at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base, 6 decimals), which equals $0.02 per request. Payment timeout is 300 seconds. No rate limits or minimums are advertised.","tags":[],"capabilities":["stock-quote","per-call-payment","x402","usdc-base","no-api-key","json-response"],"categories":["finance","data"],"synonyms":["stock price API","Boeing stock data","BA ticker quote","pay-per-call stock API","x402 stock endpoint","USDC stock API","Base network API"],"warnings":["The /api/v1/stocks/BA endpoint is not listed in the provider's own landing-page catalog — it may be unlisted, experimental, or deprecated.","No request or response schema is available; the actual data returned is unknown.","Documentation pages (/docs, /pricing, /README) returned no meaningful content beyond 'Connect wallet'.","No information on data source, update frequency, or accuracy of stock quotes."],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/BA","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/BA","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base). However, there is no documentation for the /stocks/BA route specifically, no request/response schema, no example payloads, and the endpoint is not listed in the site's own catalog. Docs, pricing, and README pages all returned only a 'Connect wallet' stub with no useful 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'/request':124 '0.02':62,123,191 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':184 '20000':177 '300':197 '6':187 'BA ticker quote' 'Base network API' 'Boeing stock data' 'USDC stock API' 'accept':167 'account':76 'advertis':205 'ai':145 'ai/ml':111 'analyt':110,144 'api':7,24,73,107 'attach':80 'ba':10,27,45 'base':15,32,70,178,186 'boe':46 'broader':96 'call':4,21,54,106 'caller':79 'catalog':140 'categori':149 'challeng':161,172 'confirm':162 'data':41,109,115 'decim':188 'dozen':101 'endpoint':36,91,129 'equal':190 'financ':146 'finance/crypto':113 'focus':142 'header':84 'infer':112 'json':88 'json-response' 'key':74 'land':138 'legaci':157 'limit':201 'list':133 'live':165 'lowpaymentfee.com':38,98 'market':114 'maxamountrequir':175 'may':152 'minimum':203 'network':71 'no-api-key' 'offer':100 'page':139 'paid':52 'part':93 'pay':2,19,104 'pay-per-cal':1,18,103 'pay-per-call stock API' 'payment':83,168,194 'per':3,20,53,63,105,192 'per-call-payment' 'platform':97 'point':126 'post':50 'price':60,125,169 'protocol':58 'provid':39 'quot':6,23 'rate':200 'receiv':86 'request':51,64,193 'requir':78 'respons':89 'rout':158 'second':198 'servic':118 'settl':11,28,65 'simpl':49 'site':136 'span':108 'specif':128 'specifi':173 'stock':5,22,40 'stock price API' 'stock-quote' 'ticker':9,26,44 'timeout':195 'token':182 'unit':179 'unlist':155 'usdc':13,30,67,181 'usdc-base' 'use':55 'util':117,148 'via':16,33,47 'x402':17,34,57,82,160,171 'x402 stock endpoint'","prices":[{"id":"4e813614-1872-4bb0-9fd5-03edbea60981","listingId":"72962139-cfd7-4789-a566-0867ad5d8caf","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/BA","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:33:45.979Z"}],"sources":[{"listingId":"72962139-cfd7-4789-a566-0867ad5d8caf","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/BA","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:45.979Z","lastSeenAt":"2026-04-23T20:01:28.104Z"}],"details":{"listingId":"72962139-cfd7-4789-a566-0867ad5d8caf","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/BA \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"x402 challenge returns maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/stocks/BA"},{"claim":"USDC token address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base (6 decimals), making 20000 base units = $0.02","source_url":"https://lowpaymentfee.com/api/v1/stocks/BA"},{"claim":"Platform advertises $0.02/request, no API keys, no rate limits, instant access, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Landing page lists analytics, AI/ML, finance/crypto, and utility APIs but does not list /api/v1/stocks/BA","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching current Boeing (BA) stock data in an automated trading or monitoring pipeline","Agent-driven portfolio analysis that needs on-demand stock quotes without subscription","Integrating real-time stock information into a chatbot or AI agent workflow"],"bestFor":["Agents or scripts needing occasional stock quotes without API key management","Low-volume, pay-as-you-go stock data retrieval","Crypto-native applications that can settle micropayments in USDC on Base"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk data","Users who need historical OHLCV candle data or full market depth","Callers who cannot settle payments in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T18:33:13.925Z"},"updatedAt":"2026-04-23T20:01:28.104Z"}}