{"id":"2e91dec0-4c6a-4a70-bf70-9b979c767b7b","shortId":"GKLHT5","kind":"x402","title":"Stock data for ticker MA via x402 micropayment on Base, $0.02 per request.","tagline":"Stock data for ticker MA via x402 micropayment on Base, $0.02 per request.","description":"This endpoint provides stock data for the ticker symbol MA (Mastercard) through an x402-protocol pay-per-call API hosted at lowpaymentfee.com. Each request costs $0.02 (20,000 base units of USDC on the Base network, where USDC has 6 decimals). The endpoint accepts POST requests and returns JSON.\n\nThe provider, lowpaymentfee.com, offers a broad catalog of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per call. The platform requires no API keys, no rate limits, and no upfront commitments; payment is handled inline via the x402 protocol using USDC on Base. The specific endpoint `/api/v1/stocks/MA` is not listed on the provider's main catalog page (which focuses on analytics, AI, finance, and utility endpoints), so it may be an unlisted or newer addition.\n\nBecause no OpenAPI schema, request/response examples, or detailed documentation were found for this endpoint, the exact request body format and response structure are unknown. The crawled docs, pricing, and README pages all returned only a \"Connect wallet\" prompt with no substantive content. Users should expect to experiment with the POST body or contact the provider for integration guidance.","tags":[],"capabilities":["stock-data","per-request-payment","x402-protocol","usdc-base","json-response","no-api-key"],"categories":["finance","data"],"synonyms":["stock price API","Mastercard stock data","MA ticker","equity data endpoint","stock quote API","x402 stock API","micropayment stock data"],"warnings":["No OpenAPI schema or request/response documentation available for this endpoint","The /api/v1/stocks/MA path is not listed on the provider's main catalog page — it may be unlisted or experimental","All documentation pages (docs, pricing, README) returned only a 'Connect wallet' prompt with no content","Exact request body format and response structure are unknown"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/MA","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/MA","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (returns a valid 402 x402 challenge), but there is no OpenAPI schema, no documented request/response format, no examples, and the docs pages are empty. The specific /stocks/MA endpoint is not listed on the provider's catalog. Pricing is clear but everything else must be 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'0.02':11,24,54,104 '000':56 '20':55 '6':68 'MA ticker' 'Mastercard stock data' 'accept':72 'addit':163 'ai':150 'ai/ml':94 'analyt':93,149 'api':47,90,111 'base':10,23,57,63,131 'bodi':181,214 'broad':83 'call':46,106 'catalog':84,144 'commit':119 'connect':199 'contact':216 'content':205 'cost':53 'crawl':189 'crypto':97 'data':2,15,31,92 'decim':69 'detail':171 'doc':190 'document':172 'endpoint':28,71,134,154,177 'equity data endpoint' 'exact':179 'exampl':169 'expect':208 'experi':210 'financ':96,151 'focus':147 'format':182 'found':174 'guidanc':221 'handl':122 'host':48 'infer':95 'inlin':123 'integr':220 'json':77 'json-response' 'key':112 'limit':115 'list':138 'lowpaymentfee.com':50,80 'ma':5,18,36 'main':143 'mastercard':37 'may':157 'micropay':8,21 'micropayment stock data' 'network':64 'newer':162 'no-api-key' 'offer':81 'openapi':166 'page':145,194 'pay':44,87 'pay-per-cal':43 'pay-per-request':86 'payment':120 'per':12,25,45,88,105 'per-request-payment' 'platform':108 'post':73,213 'price':102,191 'prompt':201 'protocol':42,127 'provid':29,79,141,218 'rate':114 'readm':193 'request':13,26,52,74,89,180 'request/response':168 'requir':109 'respons':184 'return':76,196 'schema':167 'servic':100 'span':91 'specif':133 'stock':1,14,30 'stock price API' 'stock quote API' 'stock-data' 'structur':185 'substant':204 'symbol':35 'ticker':4,17,34 'unit':58 'unknown':187 'unlist':160 'upfront':118 'usdc':60,66,129 'usdc-base' 'use':128 'user':206 'util':99,153 'via':6,19,124 'wallet':200 'x402':7,20,41,126 'x402 stock API' 'x402-protocol':40","prices":[{"id":"93d675ac-febc-4d76-af16-64fc779c41ce","listingId":"2e91dec0-4c6a-4a70-bf70-9b979c767b7b","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/MA","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:36:04.634Z"}],"sources":[{"listingId":"2e91dec0-4c6a-4a70-bf70-9b979c767b7b","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/MA","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:36:04.634Z","lastSeenAt":"2026-04-29T13:33:58.458Z"}],"details":{"listingId":"2e91dec0-4c6a-4a70-bf70-9b979c767b7b","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/MA \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/stocks/MA"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/stocks/MA"},{"claim":"Provider advertises $0.02 per request, no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The /api/v1/stocks/MA endpoint is not listed among the provider's advertised API catalog","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching current or recent stock data for Mastercard (MA) in automated trading or analytics pipelines","Agents that need on-demand equity information without managing API keys or subscriptions","Pay-per-call stock lookups integrated into AI agent workflows on Base"],"bestFor":["Developers or agents needing quick, keyless access to MA stock data","x402-compatible agents that can pay with USDC on Base","Low-volume or sporadic stock data lookups where per-call pricing is preferable to subscriptions"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk data","Users who need comprehensive multi-ticker coverage (only MA ticker confirmed at this endpoint)","Anyone without USDC on Base or an x402-compatible payment client"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:48.891Z"},"updatedAt":"2026-04-29T13:33:58.458Z"}}