{"id":"331ee558-8ad4-4fd0-9ca6-1fe35afd0721","shortId":"VsXcPX","kind":"x402","title":"Historical stock price data for WM (Walmart) via pay-per-request x402 on Base.","tagline":"Historical stock price data for WM (Walmart) via pay-per-request x402 on Base.","description":"This endpoint at lowpaymentfee.com provides historical stock price data for the ticker WM (Walmart). It is part of a broader suite of paid APIs offered by lowpaymentfee.com, which spans data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform use the x402 payment protocol, settling in USDC on the Base network.\n\nThe specific endpoint `/api/v1/stocks/WM/history` accepts POST requests and returns JSON. The x402 challenge confirms the endpoint is live, advertising a maximum cost of $0.02 per request (20,000 base units of USDC with 6 decimals). No API keys or rate limits are required — payment is handled inline via the X-PAYMENT header. The platform advertises uniform $0.02/request pricing across all its endpoints.\n\nDocumentation is extremely sparse. The landing page lists available endpoints and pricing, but the /docs, /pricing, and /README pages all returned only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what fields the historical stock data response contains. The URL pattern suggests the stock ticker is embedded in the path (e.g., `/stocks/WM/history`), but it is unclear whether other tickers are available at similar paths or what query parameters (date ranges, intervals) are supported.","tags":[],"capabilities":["stock-history","historical-price-data","x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key"],"categories":["finance","data"],"synonyms":["stock price history","Walmart stock data","WM historical prices","equity price API","stock market data","x402 stock API","pay-per-call finance API"],"warnings":["No documentation available — /docs, /pricing, /README all return only 'Connect wallet' with no content","No OpenAPI or JSON schema describing request parameters or response format","Unknown whether other stock tickers are supported or what query parameters are accepted","Response structure for historical stock data is completely undocumented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/WM/history","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/WM/history","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages are empty stubs. The actual data returned is entirely unknown, making this effectively a stub 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'/docs':164 '/pricing':165 '/readme':167 '/request':144 '/stocks/wm/history':213 '0.02':109,143 '000':113 '20':112 '6':119 'WM historical prices' 'Walmart stock data' 'accept':90 'across':146 'advertis':104,141 'ai/ml':62 'analyt':61 'api':54,122 'avail':158,222 'base':15,30,84,114 'base-network' 'broader':50 'challeng':98 'confirm':99 'connect':173 'contain':199 'content':179 'cost':107 'crypto':65 'data':4,19,39,60,197 'date':230 'decim':120 'descript':190 'document':150 'e.g':212 'embed':208 'endpoint':32,70,88,101,149,159 'equity price API' 'exampl':187 'extrem':152 'field':193 'financ':64 'handl':131 'header':138 'histor':1,16,36,195 'historical-price-data' 'infer':63 'inlin':132 'interv':232 'json':95 'key':123 'land':155 'limit':126 'list':157 'live':103 'lowpaymentfee.com':34,57 'maximum':106 'network':85 'no-api-key' 'offer':55 'openapi':183 'page':156,168 'paid':53 'paramet':229 'part':47 'path':211,225 'pattern':202 'pay':10,25 'pay-per-call finance API' 'pay-per-request':9,24 'payment':77,129,137 'per':11,26,110 'platform':73,140 'post':91 'price':3,18,38,145,161 'prompt':175 'protocol':78 'provid':35 'queri':228 'rang':231 'rate':125 'request':12,27,92,111 'request/response':186 'requir':128 'respons':198 'return':94,170 'schema':184 'servic':68 'settl':79 'similar':224 'span':59 'spars':153 'specif':87 'stock':2,17,37,196,205 'stock market data' 'stock price history' 'stock-history' 'substant':178 'suggest':203 'suit':51 'support':234 'ticker':42,206,220 'unclear':217 'uniform':142 'unit':115 'url':201 'usdc':81,117 'usdc-settlement' 'use':74 'util':67 'via':8,23,133 'wallet':174 'walmart':7,22,44 'whether':218 'wm':6,21,43 'x':136 'x-payment':135 'x402':13,28,76,97 'x402 stock API' 'x402-payment'","prices":[{"id":"96b64a46-3366-4578-a1fd-a02cf4c87104","listingId":"331ee558-8ad4-4fd0-9ca6-1fe35afd0721","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/WM/history","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:38:45.354Z"}],"sources":[{"listingId":"331ee558-8ad4-4fd0-9ca6-1fe35afd0721","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/WM/history","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:38:45.354Z","lastSeenAt":"2026-04-29T07:34:04.074Z"}],"details":{"listingId":"331ee558-8ad4-4fd0-9ca6-1fe35afd0721","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/WM/history \\\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":"Endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/stocks/WM/history"},{"claim":"Platform advertises $0.02/request uniform pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stocks/WM/history"}],"useCases":["Retrieving historical stock price data for Walmart (WM) for backtesting or analysis","Integrating stock history into an AI agent workflow with automatic micropayments","Building financial dashboards that pull historical equity data on demand"],"bestFor":["Agents or apps needing on-demand historical stock data without API key management","Low-volume or sporadic stock data lookups where per-request pricing is economical","Developers experimenting with x402 payment-gated financial APIs"],"notFor":["High-frequency or bulk historical data downloads (no documented batch endpoint)","Users needing comprehensive documentation, schemas, or guaranteed SLAs","Non-crypto users who cannot settle payments in USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:40.849Z"},"updatedAt":"2026-04-29T07:34:04.074Z"}}