{"id":"39a2c278-c58f-412e-878c-2e4065086b25","shortId":"2Yg7kX","kind":"x402","title":"Stock market quote for BKNG (Booking Holdings) via x402 micropayment on Base.","tagline":"Stock market quote for BKNG (Booking Holdings) via x402 micropayment on Base.","description":"This endpoint at lowpaymentfee.com returns a market quote for the ticker symbol BKNG (Booking Holdings) in exchange for a per-request x402 micropayment of $0.02 settled in USDC on the Base network. The endpoint is live and returns a standard x402 challenge (HTTP 402) requiring an X-PAYMENT header with a payment proof before serving data.\n\nThe provider operates a broader platform offering dozens of pay-per-call API endpoints across categories including data analytics, AI/ML inference, finance/crypto market data, and utility services — all priced at $0.02 per request. The platform advertises no API keys, no rate limits, and instant access. This specific endpoint sits under the market quote path (`/api/v1/market/quote/{ticker}`) and uses HTTP POST.\n\nDocumentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no example request/response payloads, and no description of the response format beyond the MIME type `application/json`. The actual data source backing the market quotes is not disclosed.","tags":[],"capabilities":["stock-quote","market-data","x402-payment","usdc-base","per-request-micropayment","no-api-key"],"categories":["finance","market-data"],"synonyms":["BKNG stock quote","Booking Holdings quote","stock price API","market quote API","x402 finance API","micropayment stock data","Base USDC stock API"],"warnings":["No documentation available — docs, API, pricing, and README pages all render only a wallet-connect prompt with no content.","No OpenAPI or JSON schema describing request parameters or response shape.","Data source for market quotes is undisclosed; accuracy and freshness are unknown.","The specific /api/v1/market/quote/{ticker} path is not listed on the provider's homepage — only /api/v1/finance/prices and /api/v1/crypto/quotes are shown, raising questions about whether this endpoint is fully supported."],"endpointUrl":"https://lowpaymentfee.com/api/v1/market/quote/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/market/quote/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 (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no example request/response, and all documentation pages returned only a wallet-connect stub. The actual response format and data source are 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'0.02':50,114 '402':69 'BKNG stock quote' 'Base USDC stock API' 'Booking Holdings quote' 'access':128 'across':98 'actual':189 'advertis':119 'ai/ml':103 'analyt':102 'api':96,121,151 'application/json':187 'back':192 'base':12,24,56 'beyond':183 'bkng':5,17,37 'book':6,18,38 'broader':87 'call':95 'categori':99 'challeng':67 'connect':160 'content':166 'crawl':149 'data':82,101,107,190 'descript':178 'disclos':198 'doc':150 'document':144 'dozen':90 'endpoint':26,59,97,131 'exampl':173 'exchang':41 'extrem':146 'finance/crypto':105 'format':182 'header':75 'hold':7,19,39 'http':68,142 'includ':100 'infer':104 'instant':127 'key':122 'limit':125 'live':61 'lowpaymentfee.com':28 'market':2,14,31,106,135,194 'market quote API' 'market-data' 'micropay':10,22,48 'micropayment stock data' 'mime':185 'network':57 'no-api-key' 'offer':89 'openapi':170 'oper':85 'page':155 'path':137 'pay':93 'pay-per-cal':92 'payload':175 'payment':74,78 'per':45,94,115 'per-request':44 'per-request-micropayment' 'platform':88,118 'post':143 'price':112,152 'prompt':162 'proof':79 'provid':84 'quot':3,15,32,136,195 'rate':124 'readm':154 'request':46,116 'request/response':174 'requir':70 'respons':181 'return':29,63,157 'schema':171 'serv':81 'servic':110 'settl':51 'sit':132 'sourc':191 'spars':147 'specif':130 'standard':65 'stock':1,13 'stock price API' 'stock-quote' 'substant':165 'symbol':36 'ticker':35,139 'type':186 'usdc':53 'usdc-base' 'use':141 'util':109 'via':8,20 'wallet':161 'x':73 'x-payment':72 'x402':9,21,47,66 'x402 finance API' 'x402-payment'","prices":[{"id":"b4c884b2-92dd-4d13-817f-aadb928461c5","listingId":"39a2c278-c58f-412e-878c-2e4065086b25","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/market/quote/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":"2026-04-18T18:36:42.690Z"}],"sources":[{"listingId":"39a2c278-c58f-412e-878c-2e4065086b25","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/market/quote/BKNG","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:36:42.690Z","lastSeenAt":"2026-04-22T07:00:31.458Z"}],"details":{"listingId":"39a2c278-c58f-412e-878c-2e4065086b25","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/market/quote/BKNG \\\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 HTTP 402 with x402 challenge requiring USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/market/quote/BKNG"},{"claim":"maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02","source_url":"https://lowpaymentfee.com/api/v1/market/quote/BKNG"},{"claim":"Platform advertises $0.02/request, no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, API, pricing, and README pages return only a Connect wallet prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Fetching a real-time or recent market quote for Booking Holdings (BKNG)","Integrating pay-per-call stock data into an AI agent workflow without API key management","Programmatic access to equity quotes settled via crypto micropayments"],"bestFor":["Agents or bots that need on-demand stock quotes without subscription overhead","Developers experimenting with x402 payment-gated APIs","Low-volume, pay-as-you-go market data consumers"],"notFor":["High-frequency trading requiring sub-millisecond latency and guaranteed SLAs","Users needing historical OHLCV or full order-book depth data","Anyone who needs detailed documentation or guaranteed data-source provenance"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:46.922Z"},"updatedAt":"2026-04-22T07:00:31.458Z"}}