{"id":"a731a60f-bf83-4a2d-a367-3abea6afeb51","shortId":"Xqx3g4","kind":"x402","title":"Stock quote data for ticker V via x402 micropayment on Base, $0.02 per request.","tagline":"Stock quote data for ticker V via x402 micropayment on Base, $0.02 per request.","description":"This endpoint at lowpaymentfee.com provides stock data for the ticker symbol \"V\" (Visa Inc.) through the x402 payment protocol. It is part of a broader suite of pay-per-call APIs offered by the same provider, spanning finance, AI/ML, data analytics, and utility categories. The specific endpoint `/api/v1/stocks/V` sits under the finance vertical and returns JSON data when called via HTTP POST with a valid x402 payment header.\n\nPayment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The maximum amount required per call is 20,000 base units, which at 6 decimals equals $0.02 USD. There are no API keys, no rate limits, and no subscription commitments — each request is paid individually. The x402 challenge was successfully captured with version 1, confirming the endpoint is live.\n\nDocumentation is extremely sparse. The crawled docs, pricing, and API pages all returned only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI schema, no example request/response payloads, and no description of what fields the stock data response contains. The endpoint path suggests it returns data for a single stock ticker (V), but the exact response structure is unknown.","tags":[],"capabilities":["stock-quote","single-ticker-lookup","x402-micropayment","usdc-payment","base-network","pay-per-request","no-api-key"],"categories":["finance","data"],"synonyms":["stock price API","Visa stock data","equity quote","stock market data","ticker lookup","V stock","share price endpoint"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All documentation pages (docs, pricing, API, README) returned only a 'Connect wallet' stub with no technical content","It is unclear whether this endpoint returns real-time quotes, delayed data, or something else entirely","Single-ticker endpoint — unclear if other stock tickers are available at similar paths"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/V","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/V","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 schema, no documented request/response format, no examples, and the crawled documentation pages are empty stubs. The actual data returned is entirely 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'0.02':12,26,125 '000':117 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':108 '1':152 '20':116 '6':122 'V stock' 'Visa stock data' 'ai/ml':68 'amount':111 'analyt':70 'api':60,130,167 'base':11,25,103,118 'base-network' 'broader':53 'call':59,88,114 'captur':149 'categori':73 'challeng':146 'commit':138 'confirm':153 'connect':173 'contain':200 'contract':107 'crawl':163 'data':3,17,35,69,86,198,207 'decim':123 'descript':192 'detail':180 'doc':164 'document':158 'endpoint':30,76,155,202 'equal':124 'equity quote' 'exact':216 'exampl':187 'extrem':160 'field':195 'financ':67,81 'header':97 'http':90 'inc':42 'individu':143 'json':85 'key':131 'limit':134 'live':157 'lowpaymentfee.com':32 'maximum':110 'micropay':9,23 'network':104 'no-api-key' 'offer':61 'openapi':184 'page':168 'paid':142 'part':50 'path':203 'pay':57 'pay-per-cal':56 'pay-per-request' 'payload':189 'payment':46,96,98 'per':13,27,58,113 'post':91 'price':165 'prompt':175 'protocol':47 'provid':33,65 'quot':2,16 'rate':133 'request':14,28,140 'request/response':188 'requir':112 'respons':199,217 'return':84,170,206 'schema':185 'settl':100 'share price endpoint' 'singl':210 'single-ticker-lookup' 'sit':78 'span':66 'spars':161 'specif':75 'stock':1,15,34,197,211 'stock market data' 'stock price API' 'stock-quote' 'structur':218 'subscript':137 'success':148 'suggest':204 'suit':54 'symbol':39 'technic':179 'ticker':5,19,38,212 'ticker lookup' 'unit':119 'unknown':220 'usd':126 'usdc':106 'usdc-payment' 'use':105 'util':72 'v':6,20,40,213 'valid':94 'version':151 'vertic':82 'via':7,21,89 'visa':41 'wallet':174 'x402':8,22,45,95,145 'x402-micropayment'","prices":[{"id":"d94e7e06-c355-44a9-8e7d-579fde1a1b04","listingId":"a731a60f-bf83-4a2d-a367-3abea6afeb51","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/V","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:33:51.432Z"}],"sources":[{"listingId":"a731a60f-bf83-4a2d-a367-3abea6afeb51","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/V","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:51.432Z","lastSeenAt":"2026-04-23T20:01:28.553Z"}],"details":{"listingId":"a731a60f-bf83-4a2d-a367-3abea6afeb51","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/V \\\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 v1 challenge requiring USDC payment on Base","source_url":"https://lowpaymentfee.com/api/v1/stocks/V"},{"claim":"Maximum amount required is 20000 base units of USDC (6 decimals) = $0.02 per request","source_url":"https://lowpaymentfee.com/api/v1/stocks/V"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/stocks/V"},{"claim":"Provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching current or recent stock data for Visa (ticker V) in an automated trading or analytics pipeline","Agent-driven portfolio monitoring that pays per query with no subscription","Integrating real-time equity data into a Web3 application using on-chain micropayments"],"bestFor":["Developers who want pay-per-call stock data without API key management","AI agents with Base USDC wallets needing on-demand equity quotes","Low-volume or sporadic stock data lookups where subscriptions are wasteful"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk ticker coverage","Users who need historical OHLCV candle data or full market depth (no evidence this is provided)","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T18:15:58.936Z"},"updatedAt":"2026-04-23T20:01:28.553Z"}}