{"id":"293123d2-2e17-445c-84c2-a6cb38392f74","shortId":"VxCtkf","kind":"x402","title":"Real-time stock price data for DUK (Duke Energy) via x402 micropayment on Base.","tagline":"Real-time stock price data for DUK (Duke Energy) via x402 micropayment on Base.","description":"This endpoint provides real-time stock price data for Duke Energy (ticker: DUK) through the x402 payment protocol. It is part of a broader API platform at lowpaymentfee.com that offers data & analytics, AI/ML inference, finance, crypto, and utility endpoints—all gated behind per-request x402 micropayments settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/stocks/DUK/price` accepts POST requests and returns JSON. Each call costs $0.02 (20,000 base units of USDC with 6 decimals) paid via the x402 `X-PAYMENT` header. The platform advertises no API keys, no rate limits, and instant access—you pay per request with no subscriptions or commitments.\n\nDocumentation on the site is extremely thin: the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of the response schema. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data source, update frequency, and response format are unknown. The platform hosts many other endpoints across finance, AI, and utilities, all at the same $0.02 price point.","tags":[],"capabilities":["stock-price-lookup","x402-payment","usdc-micropayment","base-network","real-time-data","per-request-billing","no-api-key"],"categories":["finance","data"],"synonyms":["stock price API","DUK stock price","Duke Energy price","equity price feed","stock market data","x402 stock API","micropayment stock data"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","Docs, pricing, API, and README pages all render only 'Connect wallet' with no technical content","Data source and update frequency for stock prices are undisclosed","This endpoint is for a single ticker (DUK); it is unclear if other tickers are available at similar paths"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/DUK/price","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/DUK/price","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 with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and the docs pages are empty stubs. The actual data source and response format must be inferred 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'0.02':99,217 '000':101 '20':100 '402':188 '6':107 'DUK stock price' 'Duke Energy price' 'accept':90 'access':128 'across':208 'actual':192 'addit':161 'advertis':119 'ai':210 'ai/ml':64 'analyt':63 'api':56,121,148 'base':15,30,84,102 'base-network' 'behind':73 'broader':55 'call':97 'challeng':189 'commit':137 'confirm':183 'connect':156 'cost':98 'crypto':67 'data':6,21,39,62,193 'decim':108 'descript':175 'detail':163 'doc':146 'document':138 'duk':8,23,44 'duke':9,24,41 'endpoint':32,70,88,181,207 'energi':10,25,42 'equity price feed' 'exampl':170 'extrem':143 'financ':66,209 'format':199 'frequenc':196 'gate':72 'header':116 'host':204 'infer':65 'instant':127 'json':95 'key':122 'limit':125 'live':184 'lowpaymentfee.com':59 'mani':205 'micropay':13,28,78 'micropayment stock data' 'network':85 'no-api-key' 'offer':61 'openapi':167 'page':151 'paid':109 'part':52 'pay':130 'payload':172 'payment':48,115 'per':75,131 'per-request':74 'per-request-billing' 'platform':57,118,203 'point':219 'post':91 'price':5,20,38,147,218 'prompt':158 'proper':187 'protocol':49 'provid':33 'rate':124 'readm':150 'real':2,17,35 'real-tim':1,16,34 'real-time-data' 'render':153 'request':76,92,132 'request/response':171 'respons':178,198 'return':94,185 'schema':179 'settl':79 'site':141 'sourc':194 'spec':168 'specif':87 'stock':4,19,37 'stock market data' 'stock price API' 'stock-price-lookup' 'subscript':135 'technic':162 'thin':144 'ticker':43 'time':3,18,36 'unit':103 'unknown':201 'updat':195 'usdc':81,105 'usdc-micropayment' 'util':69,212 'via':11,26,110 'wallet':157 'x':114 'x-payment':113 'x402':12,27,47,77,112 'x402 stock API' 'x402-payment'","prices":[{"id":"d43fd0b3-3160-4a9b-974e-caa68ebdcc55","listingId":"293123d2-2e17-445c-84c2-a6cb38392f74","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/DUK/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:33:07.280Z"}],"sources":[{"listingId":"293123d2-2e17-445c-84c2-a6cb38392f74","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/DUK/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:07.280Z","lastSeenAt":"2026-04-23T20:01:25.102Z"}],"details":{"listingId":"293123d2-2e17-445c-84c2-a6cb38392f74","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/DUK/price \\\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 network","source_url":"https://lowpaymentfee.com/api/v1/stocks/DUK/price"},{"claim":"The platform advertises $0.02 per request, no API keys, no rate limits, instant access, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stocks/DUK/price"},{"claim":"Docs, pricing, API, and README pages render only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Fetching the current stock price of Duke Energy (DUK) for portfolio tracking or display","Integrating real-time equity price data into an AI agent workflow without API key management","Building pay-per-call financial dashboards that settle in USDC on Base"],"bestFor":["Agents or apps needing on-demand stock price lookups without subscription overhead","Developers who want crypto-native pay-per-request access to equity data","Low-volume or sporadic stock price queries where flat-rate plans are wasteful"],"notFor":["High-frequency trading or bulk historical data retrieval (no documented batch endpoints)","Users who need comprehensive financial data (earnings, fundamentals, options chains) beyond a single price quote","Anyone without a Base-network USDC wallet or x402-compatible client"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T19:17:03.487Z"},"updatedAt":"2026-04-23T20:01:25.102Z"}}