{"id":"870dfd8c-387a-451d-acd4-5c08071f9a4f","shortId":"2UeCQL","kind":"x402","title":"Historical stock price data for VRTX via x402 micropayment on Base, $0.02 per request.","tagline":"Historical stock price data for VRTX via x402 micropayment on Base, $0.02 per request.","description":"This endpoint provides historical stock price data for Vertex Pharmaceuticals (VRTX) through the x402 payment protocol. It is part of a broader API platform hosted at lowpaymentfee.com that offers data & analytics, AI/ML inference, finance, crypto, and utility endpoints — all gated behind x402 micropayments settled in USDC on the Base network.\n\nThe endpoint accepts POST requests and returns JSON. Each call costs a maximum of $0.02 (20,000 base units of USDC with 6 decimals) paid via the x402 X-PAYMENT header. There are no API keys, no rate limits, and no subscription commitments — you pay per request. The payment is sent to address 0x1A2B…85F3 on Base using the USDC contract at 0x8335…2913.\n\nDocumentation beyond the landing page is sparse: the /docs, /pricing, and /README pages all resolve to a wallet-connect stub with no additional technical detail. No OpenAPI schema, request body specification, or example responses are available. The endpoint is confirmed live (returns a proper 402 challenge), but the exact request parameters and response shape for historical stock data must be discovered by the caller.","tags":[],"capabilities":["stock-history","financial-data","x402-payment","usdc-base","per-request-pricing","no-api-key","json-response"],"categories":["finance","data"],"synonyms":["stock price history","VRTX historical data","Vertex Pharmaceuticals stock","equity price API","stock market data","micropayment stock API","x402 finance API"],"warnings":["No documentation available — /docs, /pricing, and /README all return only a wallet-connect prompt with no content.","Request body schema and response format are completely undocumented; callers must discover parameters by experimentation.","The specific data source for VRTX historical stock prices is unknown — data freshness and accuracy cannot be verified.","No OpenAPI or machine-readable schema is published."],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/VRTX/history","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/VRTX/history","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, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request parameters, no example responses, and the docs/pricing/README pages are all empty wallet-connect stubs. The listing is effectively a stub with only the x402 challenge and landing page to go 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'/pricing':153 '/readme':155 '0.02':12,26,93 '000':95 '0x1a2b':133 '0x8335':142 '20':94 '2913':143 '402':189 '6':101 '85f3':134 'VRTX historical data' 'Vertex Pharmaceuticals stock' 'accept':81 'addit':167 'address':132 'ai/ml':60 'analyt':59 'api':51,114 'avail':180 'base':11,25,77,96,136 'behind':69 'beyond':145 'bodi':174 'broader':50 'call':88 'caller':208 'challeng':190 'commit':122 'confirm':184 'connect':163 'contract':140 'cost':89 'crypto':63 'data':4,18,35,58,202 'decim':102 'detail':169 'discov':205 'document':144 'endpoint':30,66,80,182 'equity price API' 'exact':193 'exampl':177 'financ':62 'financial-data' 'gate':68 'header':110 'histor':1,15,32,200 'host':53 'infer':61 'json':86 'json-response' 'key':115 'land':147 'limit':118 'live':185 'lowpaymentfee.com':55 'maximum':91 'micropay':9,23,71 'micropayment stock API' 'must':203 'network':78 'no-api-key' 'offer':57 'openapi':171 'page':148,156 'paid':103 'paramet':195 'part':47 'pay':124 'payment':43,109,128 'per':13,27,125 'per-request-pricing' 'pharmaceut':38 'platform':52 'post':82 'price':3,17,34 'proper':188 'protocol':44 'provid':31 'rate':117 'request':14,28,83,126,173,194 'resolv':158 'respons':178,197 'return':85,186 'schema':172 'sent':130 'settl':72 'shape':198 'spars':150 'specif':175 'stock':2,16,33,201 'stock market data' 'stock price history' 'stock-history' 'stub':164 'subscript':121 'technic':168 'unit':97 'usdc':74,99,139 'usdc-base' 'use':137 'util':65 'vertex':37 'via':7,21,104 'vrtx':6,20,39 'wallet':162 'wallet-connect':161 'x':108 'x-payment':107 'x402':8,22,42,70,106 'x402 finance API' 'x402-payment'","prices":[{"id":"192cb7bc-88e7-4338-80b1-c937df0c5b2a","listingId":"870dfd8c-387a-451d-acd4-5c08071f9a4f","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/VRTX/history","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:32:50.409Z"}],"sources":[{"listingId":"870dfd8c-387a-451d-acd4-5c08071f9a4f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/VRTX/history","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:32:50.409Z","lastSeenAt":"2026-04-23T20:01:23.862Z"}],"details":{"listingId":"870dfd8c-387a-451d-acd4-5c08071f9a4f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/VRTX/history \\\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 a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/stocks/VRTX/history"},{"claim":"The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stocks/VRTX/history"},{"claim":"Docs, pricing, and README pages resolve to wallet-connect stubs with no additional content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieve historical price data for Vertex Pharmaceuticals (VRTX) for backtesting or analysis","Integrate stock history into an AI agent workflow that pays per call with no subscription","Build financial dashboards that pull on-demand equity data via micropayments"],"bestFor":["Agents or apps that need occasional stock history lookups without managing API keys","Developers experimenting with x402 micropayment-gated financial data","Low-volume consumers who prefer pay-per-request over monthly subscriptions"],"notFor":["High-frequency trading systems requiring sub-millisecond latency and bulk data","Users who need comprehensive multi-ticker historical datasets in a single call","Anyone without a Base-network USDC wallet or x402-compatible client"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T10:02:41.55Z"},"updatedAt":"2026-04-23T20:01:23.862Z"}}