{"id":"6bbdae82-649c-4328-8038-07d4fbd05865","shortId":"3eFcgj","kind":"x402","title":"Real-time stock price data for UNH via x402 micropayment on Base, $0.02 per request.","tagline":"Real-time stock price data for UNH via x402 micropayment on Base, $0.02 per request.","description":"This endpoint returns the current stock price for UnitedHealth Group (ticker: UNH) through a pay-per-call x402 protocol. It is hosted on lowpaymentfee.com, a platform offering a variety of data, AI, finance, and utility APIs all priced at $0.02 per request, settled in USDC on the Base network. No API keys or accounts are required — callers simply attach an x402 payment header to each POST request.\n\nThe specific endpoint `/api/v1/stocks/UNH/price` sits within the platform's Finance & Web3 category. The x402 challenge confirms the endpoint is live, accepting payments of up to 20,000 base units of USDC (0x8335…on Base), which equals $0.02 given USDC's 6 decimals. Payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a maximum timeout of 300 seconds.\n\nDocumentation on the site is extremely sparse — the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no response schema, and no example payloads available. The endpoint URL pattern (`/stocks/UNH/price`) strongly suggests it returns a JSON object with the current price of UNH stock, but the exact response shape is unconfirmed. The platform advertises no rate limits and instant access.","tags":[],"capabilities":["stock-price-lookup","x402-micropayment","usdc-payment","base-network","pay-per-request","no-api-key","real-time-data"],"categories":["finance","data"],"synonyms":["UNH stock price","UnitedHealth Group price","stock quote API","equity price endpoint","x402 stock data","micropayment stock API","Base USDC stock price"],"warnings":["No OpenAPI or response schema available — the exact response format is unknown","Documentation pages (/docs, /pricing, /api, /README) all render only 'Connect wallet' with no technical content","The /stocks/UNH/price path is not listed on the homepage's API catalog, which may indicate it is undocumented or experimental","No information on data source, update frequency, or market hours coverage for the stock price"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/UNH/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/UNH/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 via a valid 402 challenge with 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. The listing is largely inferred from the URL pattern and the x402 challenge 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'/stocks/unh/price':198 '0.02':14,30,73,137 '000':127 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':148 '0x8335':132 '20':126 '300':154 '6':141 'Base USDC stock price' 'UNH stock price' 'UnitedHealth Group price' 'accept':121 'access':228 'account':87 'addit':178 'address':147 'advertis':222 'ai':65 'api':69,84,167 'attach':92 'avail':193 'base':13,29,81,128,134 'base-network' 'call':50 'caller':90 'categori':112 'challeng':115 'confirm':116 'connect':173 'current':37,208 'data':6,22,64 'decim':142 'detail':180 'doc':164 'document':156 'endpoint':34,103,118,195 'equal':136 'equity price endpoint' 'exact':215 'exampl':191 'extrem':161 'financ':66,110 'given':138 'group':42 'header':96 'host':55 'instant':227 'json':204 'key':85 'limit':225 'live':120 'lowpaymentfee.com':57 'maximum':151 'micropay':11,27 'micropayment stock API' 'network':82 'no-api-key' 'object':205 'offer':60 'openapi':184 'page':168 'pattern':197 'pay':48 'pay-per-cal':47 'pay-per-request' 'payload':192 'payment':95,122,143 'per':15,31,49,74 'platform':59,108,221 'post':99 'price':5,21,39,71,165,209 'prompt':175 'protocol':52 'rate':224 'real':2,18 'real-tim':1,17 'real-time-data' 'render':170 'request':16,32,75,100 'requir':89 'respons':187,216 'return':35,202 'schema':188 'second':155 'sent':145 'settl':76 'shape':217 'simpli':91 'sit':105 'site':159 'spars':162 'spec':185 'specif':102 'stock':4,20,38,212 'stock quote API' 'stock-price-lookup' 'strong':199 'suggest':200 'technic':179 'ticker':43 'time':3,19 'timeout':152 'unconfirm':219 'unh':8,24,44,211 'unit':129 'unitedhealth':41 'url':196 'usdc':78,131,139 'usdc-payment' 'util':68 'varieti':62 'via':9,25 'wallet':174 'web3':111 'within':106 'x402':10,26,51,94,114 'x402 stock data' 'x402-micropayment'","prices":[{"id":"5978678d-62a7-45f1-a03e-73d4911689f1","listingId":"6bbdae82-649c-4328-8038-07d4fbd05865","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/UNH/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":"2026-04-18T18:33:09.709Z"}],"sources":[{"listingId":"6bbdae82-649c-4328-8038-07d4fbd05865","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/UNH/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:09.709Z","lastSeenAt":"2026-04-23T20:01:25.343Z"}],"details":{"listingId":"6bbdae82-649c-4328-8038-07d4fbd05865","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/UNH/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 HTTP 402 with an x402 challenge requiring USDC payment on Base","source_url":"https://lowpaymentfee.com/api/v1/stocks/UNH/price"},{"claim":"The platform advertises $0.02 per request, no API keys, no rate limits, instant access, on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base with maxAmountRequired of 20000 base units (=$0.02)","source_url":"https://lowpaymentfee.com/api/v1/stocks/UNH/price"}],"useCases":["Fetching the current stock price of UnitedHealth Group (UNH) programmatically","Building trading bots or dashboards that need on-demand equity prices without API key management","Agent-driven financial research workflows that pay per query via crypto micropayments"],"bestFor":["Developers wanting keyless, pay-per-call stock price data","AI agents that can settle x402 payments on Base","Low-volume or sporadic stock price lookups where subscription APIs are overkill"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk historical data","Users who need comprehensive financial data (fundamentals, filings, options chains) beyond a single price quote","Teams that cannot or prefer not to settle payments in USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T18:01:07.613Z"},"updatedAt":"2026-04-23T20:01:25.343Z"}}