{"id":"7d24d03d-8a39-47e2-a143-5001853ccf74","shortId":"2TWL3Q","kind":"x402","title":"Pay-per-call stock quote for BKNG (Booking Holdings) via x402 on Base, settled in USDC.","tagline":"Pay-per-call stock quote for BKNG (Booking Holdings) via x402 on Base, settled in USDC.","description":"This x402 endpoint at lowpaymentfee.com returns stock data for Booking Holdings (ticker: BKNG) in JSON format. It is part of a broader suite of pay-per-request APIs offered by the same provider, spanning finance, AI/ML, data analytics, and utility services. The endpoint accepts POST requests and charges $0.02 per call, paid in USDC on the Base network using the x402 payment protocol — no API keys, accounts, or rate limits required.\n\nThe x402 challenge confirms the endpoint is live and returns a 402 Payment Required response with a well-formed payment challenge. The asset address (0x8335…) corresponds to USDC on Base (6 decimals), and the maxAmountRequired of 20000 base units equals $0.02. Payment is sent to address 0x1A2B…85F3 with a 300-second timeout window.\n\nDocumentation is extremely sparse. The provider's landing page lists available endpoints and pricing, but the /docs, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of the response schema for the stocks endpoint. The exact fields returned (e.g., price, volume, market cap) are unknown and must be discovered by making a paid call.","tags":[],"capabilities":["stock-quote","per-call-payment","x402","usdc-base","no-api-key","pay-per-use","finance-data"],"categories":["finance","data"],"synonyms":["stock price API","BKNG stock data","Booking Holdings quote","equity data endpoint","stock market API","x402 stock API","micropayment stock data"],"warnings":["No OpenAPI or schema documentation available — response format for /api/v1/stocks/BKNG is completely unknown","All documentation pages (/docs, /pricing, /README) render only 'Connect wallet' with no usable content","No example responses available; actual data fields must be discovered by making a paid request","Provider offers a very broad set of endpoints (AI, analytics, finance, utils) all at $0.02 — unclear whether all are fully implemented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/BKNG","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/BKNG","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no documentation beyond a landing page, no example request/response, and no description of what fields the stocks endpoint actually returns. This is effectively a stub 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'/pricing':179 '/readme':181 '0.02':84,148 '0x1a2b':154 '0x8335':132 '20000':144 '300':158 '402':118 '6':138 '85f3':155 'BKNG stock data' 'Booking Holdings quote' 'accept':79 'account':102 'address':131,153 'ai/ml':71 'analyt':73 'api':63,100 'asset':130 'avail':172 'base':14,31,92,137,145 'bkng':8,25,47 'book':9,26,44 'broader':56 'call':4,21,86,234 'cap':223 'challeng':109,128 'charg':83 'confirm':110 'connect':187 'correspond':133 'data':42,72 'decim':139 'descript':206 'detail':194 'discov':229 'document':162 'e.g':219 'endpoint':37,78,112,173,214 'equal':147 'equity data endpoint' 'exact':216 'exampl':201 'extrem':164 'field':217 'financ':70 'finance-data' 'form':126 'format':50 'hold':10,27,45 'json':49 'key':101 'land':169 'limit':105 'list':171 'live':114 'lowpaymentfee.com':39 'make':231 'market':222 'maxamountrequir':142 'micropayment stock data' 'must':227 'network':93 'no-api-key' 'offer':64 'openapi':198 'page':170,182 'paid':87,233 'part':53 'pay':2,19,60 'pay-per-cal':1,18 'pay-per-request':59 'pay-per-use' 'payload':203 'payment':97,119,127,149 'per':3,20,61,85 'per-call-payment' 'post':80 'price':175,220 'prompt':189 'protocol':98 'provid':68,167 'quot':6,23 'rate':104 'render':184 'request':62,81 'request/response':202 'requir':106,120 'respons':121,209 'return':40,116,218 'schema':210 'second':159 'sent':151 'servic':76 'settl':15,32 'span':69 'spars':165 'spec':199 'stock':5,22,41,213 'stock market API' 'stock price API' 'stock-quote' 'suit':57 'technic':193 'ticker':46 'timeout':160 'unit':146 'unknown':225 'usdc':17,34,89,135 'usdc-base' 'use':94 'util':75 'via':11,28 'volum':221 'wallet':188 'well':125 'well-form':124 'window':161 'x402':12,29,36,96,108 'x402 stock API'","prices":[{"id":"f00b2b80-12ba-460f-a89a-11d04199f2f2","listingId":"7d24d03d-8a39-47e2-a143-5001853ccf74","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/BKNG","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:33:02.436Z"}],"sources":[{"listingId":"7d24d03d-8a39-47e2-a143-5001853ccf74","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/BKNG","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:02.436Z","lastSeenAt":"2026-04-23T20:01:24.729Z"}],"details":{"listingId":"7d24d03d-8a39-47e2-a143-5001853ccf74","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/BKNG \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns HTTP 402 with x402 challenge, maxAmountRequired 20000 in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/stocks/BKNG"},{"claim":"Pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/stocks/BKNG"}],"useCases":["Fetching current stock data for Booking Holdings (BKNG) without needing an API key or subscription","Integrating pay-per-call stock quotes into an autonomous agent workflow via x402","Prototyping financial dashboards with low-commitment, no-signup data access"],"bestFor":["Agents or bots that need on-demand stock data with crypto micropayments","Developers who want zero-signup access to stock quotes","x402-compatible clients on the Base network"],"notFor":["Bulk or high-frequency trading data needs (no documented batch endpoint)","Users who need comprehensive documentation or guaranteed SLA","Anyone without a Base-network USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T19:32:18.796Z"},"updatedAt":"2026-04-23T20:01:24.729Z"}}