{"id":"4739c921-8ff6-42c3-88d2-36648ee5ab20","shortId":"S6XF39","kind":"x402","title":"Get the current stock price for IBM via a pay-per-call x402 endpoint on Base.","tagline":"Get the current stock price for IBM via a pay-per-call x402 endpoint on Base.","description":"This endpoint returns the current stock price for IBM in JSON format, paid per request using the x402 protocol on the Base network. It is part of a broader suite of APIs offered by lowpaymentfee.com, which spans data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per request with no API keys, no rate limits, and no commitments.\n\nThe specific endpoint at `/api/v1/stocks/IBM/price` accepts POST requests and charges up to 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per call. Payment is handled via the x402 `exact` scheme: the caller includes an `X-PAYMENT` header with a signed payment proof, and the server returns the stock price data upon verification. The x402 challenge was confirmed live, returning a proper 402 response with version 1 of the protocol.\n\nNote that documentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, 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 URL suggests it returns IBM stock price data, but the exact response format is unconfirmed.","tags":[],"capabilities":["stock-price","real-time-data","x402-payment","usdc-base","pay-per-call","no-api-key","json-response"],"categories":["finance","data"],"synonyms":["IBM stock price API","stock quote API","equity price lookup","x402 stock data","pay-per-request stock price","Base USDC stock API","real-time stock price"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All doc/pricing/README pages render only 'Connect wallet' with no content","No example responses or field descriptions for the stock price data","The endpoint path is ticker-specific (/stocks/IBM/price); it is unclear whether other tickers are supported via path substitution"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/IBM/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/IBM/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.400","qualityRationale":"The x402 challenge is live and well-formed, confirming the endpoint exists and charges $0.02 in USDC on Base. However, there is no OpenAPI spec, no example request/response, and all documentation pages beyond the landing page are empty. The response schema and exact behavior must be inferred from the URL path 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'/api/v1/stocks/ibm/price':101 '/docs':183 '/pricing':185 '/readme':187 '0.02':84,121 '000':110 '0x8335':115 '1':168 '20':109 '2913':116 '402':164 'Base USDC stock API' 'IBM stock price API' 'accept':102 'addit':198 'ai/ml':74 'analyt':73 'api':66,89 'base':17,34,56,111,118 'beyond':175 'broader':63 'call':13,30,123 'caller':133 'challeng':157 'charg':106 'commit':96 'confirm':159 'connect':193 'crypto':77 'current':3,20,39 'data':72,152,226 'descript':212 'detail':200 'document':174 'endpoint':15,32,36,99,218 'equal':120 'equity price lookup' 'exact':130,229 'exampl':207 'extrem':180 'financ':76 'format':46,231 'get':1,18 'handl':126 'header':139 'ibm':7,24,43,223 'includ':134 'infer':75 'json':45 'json-response' 'key':90 'land':177 'limit':93 'live':160 'lowpaymentfee.com':69 'network':57 'no-api-key' 'note':172 'offer':67 'openapi':204 'page':178,188 'paid':47 'part':60 'pay':11,28 'pay-per-cal':10,27 'pay-per-call' 'pay-per-request stock price' 'payload':209 'payment':124,138,143 'per':12,29,48,85,122 'post':103 'price':5,22,41,82,151,225 'prompt':195 'proof':144 'proper':163 'protocol':53,171 'rate':92 'real-time stock price' 'real-time-data' 'render':190 'request':49,86,104 'request/response':208 'respons':165,215,230 'return':37,148,161,222 'schema':216 'scheme':131 'server':147 'servic':80 'sign':142 'span':71 'spars':181 'spec':205 'specif':98 'stock':4,21,40,150,224 'stock quote API' 'stock-price' 'suggest':220 'suit':64 'technic':199 'unconfirm':233 'unit':112 'upon':153 'url':219 'usdc':114 'usdc-base' 'use':50 'util':79 'verif':154 'version':167 'via':8,25,127 'wallet':194 'x':137 'x-payment':136 'x402':14,31,52,129,156 'x402 stock data' 'x402-payment'","prices":[{"id":"90a02b91-aa7e-49c7-94d0-8612f3b32d48","listingId":"4739c921-8ff6-42c3-88d2-36648ee5ab20","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/IBM/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":"2026-04-18T18:33:49.615Z"}],"sources":[{"listingId":"4739c921-8ff6-42c3-88d2-36648ee5ab20","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/IBM/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:49.615Z","lastSeenAt":"2026-04-23T20:01:28.381Z"}],"details":{"listingId":"4739c921-8ff6-42c3-88d2-36648ee5ab20","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/IBM/price \\\n  -H \"X-PAYMENT: <x402-payment-proof>\" \\\n  -H \"Content-Type: application/json\"","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 x402 version 1, accepting USDC on Base with maxAmountRequired of 20000 base units ($0.02)","source_url":"https://lowpaymentfee.com/api/v1/stocks/IBM/price"},{"claim":"The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stocks/IBM/price"},{"claim":"All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on the Base network","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching the current IBM stock price for a trading bot or portfolio tracker","Integrating real-time equity data into an AI agent workflow without managing API keys","Making one-off stock price lookups paid directly via crypto on Base"],"bestFor":["Agents or bots that need on-demand stock price data without subscription overhead","Developers who prefer crypto-native pay-per-call pricing over traditional API key management","Low-volume or sporadic stock price queries where $0.02/call is cost-effective"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk data feeds","Historical stock data or OHLCV candle retrieval (no evidence this endpoint supports it)","Users who cannot transact in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T18:31:23.974Z"},"updatedAt":"2026-04-23T20:01:28.381Z"}}