{"id":"cc776501-2a3c-492f-b09d-48f235dbaff1","shortId":"j6XMz9","kind":"x402","title":"Costco (COST) earnings data via x402 micropayment on Base for $0.02/request.","tagline":"Costco (COST) earnings data via x402 micropayment on Base for $0.02/request.","description":"This endpoint at lowpaymentfee.com provides financial earnings data for Costco (ticker: COST) through the x402 payment protocol. It is part of a broader suite of finance and Web3 APIs offered by the same provider, all priced at $0.02 per request and settled in USDC on the Base network.\n\nThe endpoint accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers attach an X-PAYMENT header with a signed USDC payment of up to 20,000 base units (i.e., $0.02, since USDC uses 6 decimals) on the Base L2 network. No API keys, rate limits, or upfront commitments are required — access is purely pay-per-call.\n\nDocumentation beyond the landing page is extremely sparse. The /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no example request/response, and no description of the earnings data schema returned. The endpoint is confirmed live (402 challenge captured), but the actual data content and structure must be verified by making a paid request.","tags":[],"capabilities":["finance-earnings-data","x402-payment","usdc-micropayment","base-network","per-request-pricing","no-api-key","stock-fundamentals"],"categories":["finance"],"synonyms":["Costco earnings API","COST earnings data","stock earnings endpoint","financial data API","x402 finance API","micropayment earnings","Costco financial data"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no content","No example request or response bodies are available; data quality and coverage cannot be verified","Only the COST ticker endpoint was probed; it is unclear whether other tickers are supported at similar paths"],"endpointUrl":"https://lowpaymentfee.com/api/v1/finance/COST/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/COST/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 confirmed) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page, and no examples. The actual data returned is unknown, making this effectively a stub 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'/docs':146 '/pricing':147 '/readme':150 '/request':12,24 '0.02':11,23,62,109 '000':105 '20':104 '402':186 '6':113 'COST earnings data' 'Costco earnings API' 'Costco financial data' 'accept':75 'access':130 'actual':191 'addit':161 'api':53,121 'attach':90 'base':9,21,71,106,117 'base-network' 'beyond':138 'broader':47 'call':136 'caller':89 'captur':188 'challeng':187 'commit':127 'confirm':184 'connect':156 'content':193 'cost':2,14,36 'costco':1,13,34 'data':4,16,32,178,192 'decim':114 'descript':174 'detail':163 'document':137 'earn':3,15,31,177 'endpoint':26,74,182 'exampl':170 'extrem':143 'financ':50 'finance-earnings-data' 'financi':30 'financial data API' 'handl':83 'header':95 'i.e':108 'inlin':84 'json':80 'key':122 'l2':118 'land':140 'limit':124 'live':185 'lowpaymentfee.com':28 'make':200 'micropay':7,19 'micropayment earnings' 'must':196 'network':72,119 'no-api-key' 'offer':54 'openapi':167 'page':141,151 'paid':202 'part':44 'pay':134 'pay-per-cal':133 'payment':40,81,94,100 'per':63,135 'per-request-pricing' 'post':76 'price':60 'prompt':158 'protocol':41,88 'provid':29,58 'pure':132 'rate':123 'render':153 'request':64,77,203 'request/response':171 'requir':129 'return':79,180 'schema':179 'settl':66 'sign':98 'sinc':110 'spars':144 'spec':168 'stock earnings endpoint' 'stock-fundamentals' 'structur':195 'suit':48 'technic':162 'ticker':35 'unit':107 'upfront':126 'usdc':68,99,111 'usdc-micropayment' 'use':112 'verifi':198 'via':5,17,85 'wallet':157 'web3':52 'x':93 'x-payment':92 'x402':6,18,39,87 'x402 finance API' 'x402-payment'","prices":[{"id":"89ab6549-a9d9-4331-9845-890de78b8c45","listingId":"cc776501-2a3c-492f-b09d-48f235dbaff1","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/COST/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":"2026-04-18T18:36:04.026Z"}],"sources":[{"listingId":"cc776501-2a3c-492f-b09d-48f235dbaff1","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/finance/COST/earnings","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:36:04.026Z","lastSeenAt":"2026-05-02T05:03:46.010Z"}],"details":{"listingId":"cc776501-2a3c-492f-b09d-48f235dbaff1","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/finance/COST/earnings \\\n  -H \"X-PAYMENT: <x402-signed-payment-header>\" \\\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 a 402 challenge with x402Version 1, accepting USDC on Base network with maxAmountRequired of 20000 base units","source_url":"https://lowpaymentfee.com/api/v1/finance/COST/earnings"},{"claim":"All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on the Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/finance/COST/earnings"},{"claim":"The provider offers Finance & Web3 APIs including price feeds, exchange rates, token quotes, and gas estimates","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving Costco (COST) earnings data for financial analysis","Automated portfolio monitoring that needs per-call earnings lookups","AI agents that need on-demand corporate earnings without API key management"],"bestFor":["Agents or bots needing quick, keyless access to COST earnings data","Pay-per-use financial data consumption without subscriptions","x402-native workflows on the Base network"],"notFor":["Bulk historical earnings downloads across many tickers (only COST endpoint documented)","Users who need detailed API documentation or schema guarantees before integrating","Non-crypto users who cannot settle payments in USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:48.93Z"},"updatedAt":"2026-05-02T05:03:46.010Z"}}