{"id":"65d73ff7-4606-4352-ad3f-7abf074290df","shortId":"yU4mGB","kind":"x402","title":"Pay-per-call stock quote for XOM (ExxonMobil) via x402 on Base, settled in USDC.","tagline":"Pay-per-call stock quote for XOM (ExxonMobil) via x402 on Base, settled in USDC.","description":"This endpoint at lowpaymentfee.com returns stock data for the ticker XOM (ExxonMobil) behind an x402 paywall. It is part of a broader suite of pay-per-request APIs offered by the same provider, spanning data analytics, AI/ML inference, finance, crypto, and utility services. The endpoint accepts POST requests and returns JSON.\n\nPricing is $0.02 per request, paid in USDC on the Base network. The x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals), which equals $0.02. Payment is made via the x402 exact scheme with no API keys, subscriptions, or rate limits required — callers simply attach an X-PAYMENT header with a valid payment proof.\n\nThe specific response schema for the /api/v1/stocks/XOM endpoint is not documented in the crawled material. The provider's landing page lists many endpoints all at the same $0.02 price point, but detailed documentation pages (docs, pricing, README) returned only a wallet-connect stub with no substantive content. Because of this, the exact fields returned in the stock data response are unknown and must be discovered by making a paid call.","tags":[],"capabilities":["stock-quote","x402-payment","usdc-settlement","base-network","per-call-pricing","no-api-key","json-response"],"categories":["finance","data"],"synonyms":["stock price API","XOM stock data","ExxonMobil quote","equity data endpoint","x402 stock API","pay-per-call stock data","USDC stock API"],"warnings":["No response schema or example output documented — callers must discover fields by making a paid request","Documentation pages (/docs, /pricing, /README) contain no substantive content","The provider lists many diverse endpoints (AI, analytics, finance, utils) all at $0.02 — unclear whether all are fully implemented","Exact data source and freshness of stock quotes is not disclosed"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/XOM","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/XOM","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). However, there is no documented request or response schema, no examples, and the docs/pricing/README pages are empty stubs. The actual data returned by the stock endpoint is entirely 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'0.02':87,118,176 '000':105 '0x8335':110 '20':104 '2913':111 '6':114 'ExxonMobil quote' 'USDC stock API' 'XOM stock data' 'accept':79 'advertis':100 'ai/ml':70 'analyt':69 'api':61,129 'attach':138 'base':13,29,95,106,113 'base-network' 'behind':45 'broader':54 'call':4,20,219 'caller':136 'challeng':99 'connect':191 'content':196 'crawl':162 'crypto':73 'data':39,68,207 'decim':115 'detail':180 'discov':214 'doc':183 'document':159,181 'endpoint':34,78,156,171 'equal':117 'equity data endpoint' 'exact':125,201 'exxonmobil':9,25,44 'field':202 'financ':72 'header':143 'infer':71 'json':84 'json-response' 'key':130 'land':167 'limit':134 'list':169 'lowpaymentfee.com':36 'made':121 'make':216 'mani':170 'materi':163 'maxamountrequir':102 'must':212 'network':96 'no-api-key' 'offer':62 'page':168,182 'paid':90,218 'part':51 'pay':2,18,58 'pay-per-cal':1,17 'pay-per-call stock data' 'pay-per-request':57 'payment':119,142,147 'paywal':48 'per':3,19,59,88 'per-call-pricing' 'point':178 'post':80 'price':85,177,184 'proof':148 'provid':66,165 'quot':6,22 'rate':133 'readm':185 'request':60,81,89 'requir':135 'respons':151,208 'return':37,83,186,203 'schema':152 'scheme':126 'servic':76 'settl':14,30 'simpli':137 'span':67 'specif':150 'stock':5,21,38,206 'stock price API' 'stock-quote' 'stub':192 'subscript':131 'substant':195 'suit':55 'ticker':42 'unit':107 'unknown':210 'usdc':16,32,92,109 'usdc-settlement' 'util':75 'valid':146 'via':10,26,122 'wallet':190 'wallet-connect':189 'x':141 'x-payment':140 'x402':11,27,47,98,124 'x402 stock API' 'x402-payment' 'xom':8,24,43","prices":[{"id":"80abaaf0-818b-453f-8184-97fdb2c647cf","listingId":"65d73ff7-4606-4352-ad3f-7abf074290df","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/XOM","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:36:19.719Z"}],"sources":[{"listingId":"65d73ff7-4606-4352-ad3f-7abf074290df","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/XOM","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:36:19.719Z","lastSeenAt":"2026-04-29T13:04:25.261Z"}],"details":{"listingId":"65d73ff7-4606-4352-ad3f-7abf074290df","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/XOM \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_proof>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The x402 challenge advertises maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network","source_url":"https://lowpaymentfee.com/api/v1/stocks/XOM"},{"claim":"Provider advertises $0.02 per request, no API keys, no rate limits, instant access, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The endpoint accepts POST method and returns application/json","source_url":"https://lowpaymentfee.com/api/v1/stocks/XOM"}],"useCases":["Fetching current or recent stock data for ExxonMobil (XOM) in an automated trading or research pipeline","Agents that need on-demand equity quotes without managing API keys or subscriptions","Integrating stock data into crypto-native applications that can settle micropayments in USDC on Base"],"bestFor":["Crypto-native agents or wallets that can sign x402 payments on Base","Low-volume, on-demand stock lookups where per-call pricing is preferable to a subscription","Developers prototyping financial tools who want instant access without signup"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk data feeds","Users who need historical OHLCV candle data or full order-book depth (not documented here)","Callers who cannot transact in USDC on the Base L2 network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:48.136Z"},"updatedAt":"2026-04-29T13:04:25.261Z"}}