{"id":"6fbe8229-9779-4fd3-8520-316508a785c5","shortId":"CP5AhX","kind":"x402","title":"Merck (MRK) earnings data via pay-per-call x402 endpoint on Base network using USDC.","tagline":"Merck (MRK) earnings data via pay-per-call x402 endpoint on Base network using USDC.","description":"This endpoint provides earnings data for Merck & Co. (ticker: MRK) through the x402 payment protocol. It is hosted on lowpaymentfee.com, a platform offering a variety of pay-per-request APIs spanning finance, analytics, AI/ML, and infrastructure — all settled on the Base network using USDC.\n\nThe endpoint accepts POST requests and returns JSON. Each call costs $0.02 in USDC (20,000 base units with 6 decimals), paid via the x402 payment header. The platform advertises no API keys, no rate limits, and instant access. The x402 challenge was successfully captured, confirming the endpoint is live.\n\nDocumentation is extremely sparse — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no example request/response, and no description of what fields the MRK earnings response contains. The endpoint's behavior must be inferred entirely from its URL path and the platform's general listing. Users should expect a financial data payload related to Merck's earnings, but the exact schema is unknown.","tags":[],"capabilities":["stock-earnings-data","finance-api","x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key"],"categories":["finance"],"synonyms":["Merck earnings","MRK earnings data","stock earnings API","equity earnings","financial data API","Merck financial data","corporate earnings"],"warnings":["No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content.","No OpenAPI or output schema provided; the structure of the earnings response is unknown.","Endpoint specificity is narrow (only MRK ticker); unclear if other tickers are available at similar paths.","No example request or response bodies available to verify data quality."],"endpointUrl":"https://lowpaymentfee.com/api/v1/finance/MRK/earnings","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/finance/MRK/earnings","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 per call on Base), but there is no documentation, no OpenAPI schema, no example requests or responses, and the docs pages are empty. The actual response schema for MRK earnings is completely 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'000':93 '20':92 '6':97 'MRK earnings data' 'Merck earnings' 'Merck financial data' 'accept':80 'access':116 'advertis':107 'ai/ml':67 'analyt':66 'api':63,109,135 'base':13,29,74,94 'base-network' 'behavior':172 'call':9,25,87 'captur':122 'challeng':119 'co':40 'confirm':123 'connect':143 'contain':168 'content':149 'corporate earnings' 'cost':88 'data':4,20,37,192 'decim':98 'descript':160 'doc':133 'document':128 'earn':3,19,36,166,198 'endpoint':11,27,34,79,125,170 'entir':176 'equity earnings' 'exact':201 'exampl':156 'expect':189 'extrem':130 'field':163 'financ':65 'finance-api' 'financi':191 'financial data API' 'general':185 'header':104 'host':50 'infer':175 'infrastructur':69 'instant':115 'json':85 'key':110 'limit':113 'list':186 'live':127 'lowpaymentfee.com':52 'merck':1,17,39,196 'mrk':2,18,42,165 'must':173 'network':14,30,75 'no-api-key' 'offer':55 'openapi':153 'page':138 'paid':99 'path':180 'pay':7,23,60 'pay-per-cal':6,22 'pay-per-request':59 'payload':193 'payment':46,103 'per':8,24,61 'platform':54,106,183 'post':81 'price':134 'prompt':145 'protocol':47 'provid':35 'rate':112 'readm':137 'relat':194 'render':140 'request':62,82 'request/response':157 'respons':167 'return':84 'schema':154,202 'settl':71 'span':64 'spars':131 'stock earnings API' 'stock-earnings-data' 'substant':148 'success':121 'ticker':41 'unit':95 'unknown':204 'url':179 'usdc':16,32,77,91 'usdc-settlement' 'use':15,31,76 'user':187 'varieti':57 'via':5,21,100 'wallet':144 'x402':10,26,45,102,118 'x402-payment'","prices":[{"id":"052f565e-1490-4758-af28-a74f1a72be45","listingId":"6fbe8229-9779-4fd3-8520-316508a785c5","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/finance/MRK/earnings","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:38:20.080Z"}],"sources":[{"listingId":"6fbe8229-9779-4fd3-8520-316508a785c5","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/finance/MRK/earnings","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:38:20.080Z","lastSeenAt":"2026-05-01T12:05:02.600Z"}],"details":{"listingId":"6fbe8229-9779-4fd3-8520-316508a785c5","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/finance/MRK/earnings \\\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 in USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/finance/MRK/earnings"},{"claim":"Platform 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":"The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/finance/MRK/earnings"}],"useCases":["Retrieve Merck (MRK) earnings data for financial analysis","Feed earnings data into automated trading or research agents","Integrate corporate earnings information into dashboards without API key management"],"bestFor":["Agents or apps needing on-demand MRK earnings data without subscription commitments","Developers who want crypto-native pay-per-call access to financial data","Prototyping financial tools that need quick, keyless API access"],"notFor":["Users needing bulk historical earnings across many tickers (only MRK endpoint documented here)","Applications requiring detailed API documentation or guaranteed SLA","Users who cannot transact in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:42.25Z"},"updatedAt":"2026-05-01T12:05:02.600Z"}}