{"id":"4036ebf1-9355-4330-bea4-1873fb463f37","shortId":"HZP9Sf","kind":"x402","title":"Pay-per-call stock market quote for XOM via x402 on Base (USDC).","tagline":"Pay-per-call stock market quote for XOM via x402 on Base (USDC).","description":"This endpoint provides a real-time market quote for the stock ticker XOM (ExxonMobil) through the x402 payment protocol. It is part of a broader API platform at lowpaymentfee.com that offers data & analytics, AI/ML inference, finance, crypto, and utility endpoints — all priced at $0.02 per request with no API keys, no rate limits, and no commitments.\n\nThe specific endpoint `/api/v1/market/quote/XOM` accepts HTTP POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) via the x402 \"exact\" scheme. The max amount required is 20,000 base units, which at 6 decimals equals $0.02 per call. The x402 challenge was successfully captured, confirming the endpoint is live.\n\nThe provider's landing page lists many other endpoints across categories like sentiment analysis, text summarization, price feeds, exchange rates, geocoding, and more — all at the same $0.02/request price point. However, documentation beyond the landing page is extremely thin: the /docs, /api, /pricing, and /README pages all returned only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no example request/response payloads, and no schema describing the quote response format.","tags":[],"capabilities":["stock-quote","market-data","x402-payment","usdc-settlement","base-network","pay-per-call","no-api-key"],"categories":["finance","data"],"synonyms":["stock quote API","XOM quote","ExxonMobil stock price","market data API","x402 finance API","pay-per-call stock data","crypto-paid market quote"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All secondary pages (/docs, /api, /pricing, /README) return only 'Connect wallet' with no content","No example request or response payloads are documented anywhere","The endpoint path suggests ticker-specific routing (/quote/XOM) but it is unclear whether other tickers are supported or what fields are returned"],"endpointUrl":"https://lowpaymentfee.com/api/v1/market/quote/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/market/quote/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/request in USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and the docs/pricing/README pages are all empty stubs. The actual data returned by the quote endpoint is entirely 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'/api/v1/market/quote/xom':89 '/docs':183 '/pricing':185 '/readme':187 '/request':170 '0.02':73,128,169 '000':120 '0x8335':107 '20':119 '2913':108 '6':125 'ExxonMobil stock price' 'XOM quote' 'accept':90 'across':151 'ai/ml':63 'amount':116 'analysi':155 'analyt':62 'api':55,78 'base':13,27,102,121 'base-network' 'beyond':175 'broader':54 'call':4,18,130 'captur':136 'categori':152 'challeng':133 'commit':85 'confirm':137 'connect':193 'contract':106 'crypto':66 'crypto-paid market quote' 'data':61 'decim':126 'describ':213 'detail':200 'document':174 'endpoint':30,69,88,139,150 'equal':127 'exact':112 'exampl':207 'exchang':160 'extrem':180 'exxonmobil':43 'feed':159 'financ':65 'format':217 'geocod':162 'howev':173 'http':91 'infer':64 'json':96 'key':79 'land':145,177 'like':153 'limit':82 'list':147 'live':141 'lowpaymentfee.com':58 'mani':148 'market':6,20,36 'market data API' 'market-data' 'max':115 'network':103 'no-api-key' 'offer':60 'openapi':204 'page':146,178,188 'part':51 'pay':2,16 'pay-per-cal':1,15 'pay-per-call' 'pay-per-call stock data' 'payload':209 'payment':47,97 'per':3,17,74,129 'platform':56 'point':172 'post':92 'price':71,158,171 'prompt':195 'protocol':48 'provid':31,143 'quot':7,21,37,215 'rate':81,161 'real':34 'real-tim':33 'request':75,93 'request/response':208 'requir':117 'respons':216 'return':95,190 'schema':212 'scheme':113 'sentiment':154 'settl':99 'spec':205 'specif':87 'stock':5,19,40 'stock quote API' 'stock-quote' 'success':135 'summar':157 'technic':199 'text':156 'thin':181 'ticker':41 'time':35 'unit':122 'usdc':14,28,105 'usdc-settlement' 'use':104 'util':68 'via':10,24,109 'wallet':194 'x402':11,25,46,111,132 'x402 finance API' 'x402-payment' 'xom':9,23,42","prices":[{"id":"fd9638d2-37fc-4db4-84cb-f78f55372a36","listingId":"4036ebf1-9355-4330-bea4-1873fb463f37","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/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":"2026-04-18T18:33:44.744Z"}],"sources":[{"listingId":"4036ebf1-9355-4330-bea4-1873fb463f37","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/market/quote/XOM","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:44.744Z","lastSeenAt":"2026-04-23T20:01:28.027Z"}],"details":{"listingId":"4036ebf1-9355-4330-bea4-1873fb463f37","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/market/quote/XOM \\\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 x402 challenge with maxAmountRequired of 20000 base units in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/market/quote/XOM"},{"claim":"All endpoints are priced at $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 contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/market/quote/XOM"}],"useCases":["Fetching a real-time stock quote for ExxonMobil (XOM) without needing an API key","Integrating pay-per-call market data into an autonomous agent workflow","Building a trading bot that pays for market data on-demand via USDC on Base"],"bestFor":["Agents or apps that need occasional stock quotes without subscription overhead","Developers experimenting with x402 payment-gated APIs","Crypto-native workflows that prefer on-chain settlement for API calls"],"notFor":["High-frequency trading requiring bulk/streaming market data at low latency","Users who need comprehensive financial data (historical, fundamentals, options chains) — only a single-ticker quote endpoint is documented","Users without a Base-network USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T18:33:19.253Z"},"updatedAt":"2026-04-23T20:01:28.027Z"}}