{"id":"6e30026e-c0e3-4b38-bacb-b68fb17d4220","shortId":"EeQVgz","kind":"x402","title":"Pay-per-call stock quote for HD (Home Depot) via x402 on Base, settled in USDC.","tagline":"Pay-per-call stock quote for HD (Home Depot) via x402 on Base, settled in USDC.","description":"This endpoint provides stock data for the ticker HD (Home Depot) through the lowpaymentfee.com platform, an x402-enabled API marketplace. The endpoint is live and returns an x402 payment challenge requiring 20,000 base units of USDC on the Base network, which equals $0.02 per request (USDC uses 6 decimals). Payment is handled via the x402 \"exact\" scheme — no API keys, subscriptions, or rate limits are needed; each call is paid individually with an on-chain USDC microtransaction.\n\nThe provider hosts a broad catalog of pay-per-call endpoints spanning data analytics, AI/ML inference, finance, crypto, and utility services, all priced uniformly at $0.02 per request. The specific endpoint probed here (/api/v1/stocks/HD) is not explicitly listed on the landing page's catalog, but it follows the same URL pattern and returns a valid x402 challenge with the same pricing. No OpenAPI schema, response examples, or detailed documentation were found during the crawl — the docs, pricing, and README pages all rendered only a \"Connect wallet\" prompt with no additional content.\n\nBecause no response schema or sample output is available, the exact shape of the stock data returned after payment is unknown. Callers should expect a JSON response (the challenge declares mimeType \"application/json\") but should be prepared for an undocumented structure. The endpoint accepts POST requests.","tags":[],"capabilities":["stock-quote","x402-payment","usdc-settlement","base-network","per-call-pricing","no-api-key"],"categories":["finance","data"],"synonyms":["stock price API","Home Depot stock data","HD ticker quote","pay-per-call stock API","x402 stock endpoint","USDC micropayment API"],"warnings":["No OpenAPI or response schema available — response format is unknown","The /api/v1/stocks/HD endpoint is not listed on the provider's landing page catalog; it may be undocumented or experimental","All documentation pages (docs, pricing, README) returned only a 'Connect wallet' prompt with no usable content","No sample response data available to verify what stock fields are returned"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/HD","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/HD","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, but there is no OpenAPI schema, no response examples, no documentation beyond a wallet-connect prompt, and the specific /stocks/HD path is not listed in the provider's own catalog. Effectively a stub with confirmed 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'0.02':79,141 '000':68 '20':67 '6':84 'HD ticker quote' 'Home Depot stock data' 'USDC micropayment API' 'accept':249 'addit':205 'ai/ml':130 'analyt':129 'api':54,95 'application/json':238 'avail':215 'base':14,31,69,75 'base-network' 'broad':119 'call':4,21,104,125 'caller':228 'catalog':120,159 'chain':112 'challeng':65,172,235 'connect':200 'content':206 'crawl':189 'crypto':133 'data':39,128,222 'decim':85 'declar':236 'depot':10,27,45 'detail':183 'doc':191 'document':184 'enabl':53 'endpoint':36,57,126,146,248 'equal':78 'exact':92,217 'exampl':181 'expect':230 'explicit':152 'financ':132 'follow':162 'found':186 'handl':88 'hd':8,25,43 'home':9,26,44 'host':117 'individu':107 'infer':131 'json':232 'key':96 'land':156 'limit':100 'list':153 'live':59 'lowpaymentfee.com':48 'marketplac':55 'microtransact':114 'mimetyp':237 'need':102 'network':76 'no-api-key' 'on-chain':110 'openapi':178 'output':213 'page':157,195 'paid':106 'pattern':166 'pay':2,19,123 'pay-per-cal':1,18,122 'pay-per-call stock API' 'payment':64,86,225 'per':3,20,80,124,142 'per-call-pricing' 'platform':49 'post':250 'prepar':242 'price':138,176,192 'probe':147 'prompt':202 'provid':37,116 'quot':6,23 'rate':99 'readm':194 'render':197 'request':81,143,251 'requir':66 'respons':180,209,233 'return':61,168,223 'sampl':212 'schema':179,210 'scheme':93 'servic':136 'settl':15,32 'shape':218 'span':127 'specif':145 'stock':5,22,38,221 'stock price API' 'stock-quote' 'structur':246 'subscript':97 'ticker':42 'undocu':245 'uniform':139 'unit':70 'unknown':227 'url':165 'usdc':17,34,72,82,113 'usdc-settlement' 'use':83 'util':135 'valid':170 'via':11,28,89 'wallet':201 'x402':12,29,52,63,91,171 'x402 stock endpoint' 'x402-enabled':51 'x402-payment'","prices":[{"id":"f9f08a80-8abf-40d6-8db9-a532d0dfc81a","listingId":"6e30026e-c0e3-4b38-bacb-b68fb17d4220","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/HD","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:33:19.896Z"}],"sources":[{"listingId":"6e30026e-c0e3-4b38-bacb-b68fb17d4220","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/HD","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:19.896Z","lastSeenAt":"2026-04-23T20:01:26.075Z"}],"details":{"listingId":"6e30026e-c0e3-4b38-bacb-b68fb17d4220","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/HD \\\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":"The endpoint returns an x402 challenge with maxAmountRequired 20000 in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/stocks/HD"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/stocks/HD"},{"claim":"Provider advertises $0.02 per request, no API keys, no rate limits, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The /api/v1/stocks/HD path is not listed among the provider's advertised endpoints","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching current or recent stock data for Home Depot (HD) without an API key or subscription","Integrating stock lookups into an AI agent workflow that can settle x402 payments on Base","Building a portfolio tracker that pays per query with USDC micropayments"],"bestFor":["Agents or bots that can settle x402 payments on Base in USDC","Low-volume, on-demand stock data retrieval without subscription overhead","Developers exploring x402 pay-per-call API patterns"],"notFor":["High-frequency trading or bulk historical data needs (no documented batch endpoints)","Users who cannot transact on the Base L2 network","Anyone requiring detailed documentation or guaranteed SLA before integration"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T19:01:41.547Z"},"updatedAt":"2026-04-23T20:01:26.075Z"}}