{"id":"15556fe0-f0c1-4ead-9c0e-5df4c940b8ce","shortId":"Mwd9UJ","kind":"x402","title":"Pay-per-call stock quote API for IBM via x402 on Base, settled in USDC at $0.02/request.","tagline":"Pay-per-call stock quote API for IBM via x402 on Base, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides stock data for IBM through a pay-per-request x402 protocol. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) at a maximum cost of $0.02 per call (20,000 base units with 6 decimals). No API keys or rate limits are required — callers simply attach an x402 payment header to each request.\n\nThe provider, lowpaymentfee.com, hosts a broader suite of endpoints spanning data analytics, AI/ML inference, finance/crypto market data, and utility services, all priced uniformly at $0.02 per request. The specific endpoint probed here (`/api/v1/stocks/IBM`) is not listed on the landing page's catalog but follows the same pricing and payment pattern. It is live and returning a valid 402 challenge.\n\nDocumentation is extremely sparse. The docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no usage examples available from the crawl. The actual response format for stock data is unknown — it could be a quote, historical data, or something else entirely. Callers should be prepared to experiment or contact the provider for details.","tags":[],"capabilities":["stock-data","x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key","json-response"],"categories":["finance","data"],"synonyms":["stock quote API","IBM stock data","x402 stock endpoint","pay-per-call stock API","USDC stock API","Base network finance API","micropayment stock data"],"warnings":["No OpenAPI or schema available — request body and response format are entirely unknown","The /api/v1/stocks/IBM endpoint is not listed on the provider's landing page catalog","All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no content","No examples or sample responses available from any source"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/IBM","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","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid 402 challenge with clear pricing. However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the /stocks/IBM path isn't even listed in the provider's own catalog. The actual data returned is completely 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'/request':19,38 '0.02':18,37,80,132 '000':84 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':74 '20':83 '402':165 '6':88 'Base network finance API' 'IBM stock data' 'USDC stock API' 'accept':58 'actual':206 'ai/ml':120 'analyt':119 'api':7,26,91,174 'attach':100 'avail':201 'base':13,32,69,85 'base-network' 'broader':113 'call':4,23,82 'caller':98,225 'catalog':149 'challeng':166 'connect':182 'contact':232 'content':188 'contract':73 'cost':78 'could':215 'crawl':204 'data':45,118,124,211,220 'decim':89 'detail':236 'doc':172 'document':167 'els':223 'endpoint':40,57,116,137 'entir':224 'exampl':200 'experi':230 'extrem':169 'finance/crypto':122 'follow':151 'format':208 'header':104 'histor':219 'host':111 'ibm':9,28,47 'infer':121 'json':63 'json-response' 'key':92 'land':146 'limit':95 'list':143 'live':160 'lowpaymentfee.com':42,110 'market':123 'maximum':77 'micropayment stock data' 'network':70 'no-api-key' 'openapi':192 'page':147,177 'pattern':157 'pay':2,21,51 'pay-per-cal':1,20 'pay-per-call stock API' 'pay-per-request':50 'payment':64,103,156 'per':3,22,52,81,133 'post':59 'prepar':228 'price':129,154,173 'probe':138 'prompt':184 'protocol':55 'provid':43,109,234 'quot':6,25,218 'rate':94 'readm':176 'render':179 'request':53,60,107,134 'request/response':195 'requir':97 'respons':207 'return':62,162 'schema':196 'servic':127 'settl':14,33,66 'simpli':99 'someth':222 'span':117 'spars':170 'spec':193 'specif':136 'stock':5,24,44,210 'stock quote API' 'stock-data' 'suit':114 'uniform':130 'unit':86 'unknown':213 'usag':199 'usdc':16,35,72 'usdc-settlement' 'use':71 'util':126 'valid':164 'via':10,29 'wallet':183 'x402':11,30,54,102 'x402 stock endpoint' 'x402-payment'","prices":[{"id":"50f38ae1-0e00-40e0-baaf-33fa82e0d464","listingId":"15556fe0-f0c1-4ead-9c0e-5df4c940b8ce","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","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:32:46.094Z"}],"sources":[{"listingId":"15556fe0-f0c1-4ead-9c0e-5df4c940b8ce","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/IBM","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:32:46.094Z","lastSeenAt":"2026-04-23T20:01:23.547Z"}],"details":{"listingId":"15556fe0-f0c1-4ead-9c0e-5df4c940b8ce","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/IBM \\\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":"Endpoint returns 402 with x402 challenge advertising USDC on Base at maxAmountRequired 20000","source_url":"https://lowpaymentfee.com/api/v1/stocks/IBM"},{"claim":"Provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stocks/IBM"}],"useCases":["Fetching IBM stock information on-demand without subscription or API key","Agent-driven portfolio monitoring that pays per data request","Integrating real-time stock data into crypto-native applications on Base"],"bestFor":["Agents or apps needing occasional stock lookups without signup","Crypto-native workflows that can settle payments in USDC on Base","Low-volume, pay-as-you-go stock data consumption"],"notFor":["High-frequency trading requiring sub-millisecond latency and guaranteed SLAs","Users who need comprehensive documentation or OpenAPI specs before integrating","Bulk historical stock data downloads"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T19:45:42.415Z"},"updatedAt":"2026-04-23T20:01:23.547Z"}}