{"id":"2eb030c8-c793-441b-abfb-5f4cfce5c147","shortId":"tPAAX9","kind":"x402","title":"Historical stock price data for WMT via x402 micropayment on Base, $0.02 per request.","tagline":"Historical stock price data for WMT via x402 micropayment on Base, $0.02 per request.","description":"This endpoint provides historical stock price data for Walmart (WMT) 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 gated behind x402 micropayments settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/stocks/WMT/history` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). No API keys are required; payment is handled entirely via the X-PAYMENT header. The provider advertises no rate limits and instant access.\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 request/response examples, and no description of what fields the historical stock data includes (e.g., OHLCV, date ranges, granularity). The endpoint is confirmed live via a valid 402 challenge response, but the actual data format and query parameters must be discovered by calling the endpoint.","tags":[],"capabilities":["stock-history","historical-prices","x402-payment","usdc-base","micropayment","per-request-pricing","no-api-key"],"categories":["finance","data"],"synonyms":["stock price history","WMT historical data","Walmart stock API","equity price data","stock market data","x402 stock API","micropayment stock data"],"warnings":["No API documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content","No OpenAPI or request/response schema provided; input parameters and output format are unknown","Stock data source, freshness, and coverage details are not disclosed","The broader platform lists many endpoint categories but it is unclear how mature or reliable any of them are"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/WMT/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/WMT/history","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02/request in USDC on Base). However, documentation is essentially nonexistent — no OpenAPI spec, no request/response schema, no examples, and no description of what data fields or query parameters are supported. The listing is effectively a stub with confirmed 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'0.02':12,26,107 '000':96 '0x8335':101 '20':95 '2913':102 '402':192 '6':112 'WMT historical data' 'Walmart stock API' 'accept':81 'access':137 'actual':197 'advertis':90,131 'ai/ml':58 'analyt':57 'api':50,115,145 'base':11,25,75,97,104 'behind':67 'broader':49 'call':207 'challeng':89,193 'confirm':187 'connect':153 'content':159 'cost':93 'crypto':61 'data':4,18,35,56,177,198 'date':181 'decim':113 'descript':170 'discov':205 'doc':143 'document':138 'e.g':179 'endpoint':30,64,79,185,209 'entir':122 'equal':106 'equity price data' 'exampl':167 'extrem':140 'field':173 'financ':60 'format':199 'gate':66 'granular':183 'handl':121 'header':128 'histor':1,15,32,175 'historical-prices' 'includ':178 'infer':59 'instant':136 'json':86 'key':116 'limit':134 'live':188 'lowpaymentfee.com':53 'maximum':92 'micropay':9,23,69 'micropayment' 'micropayment stock data' 'must':203 'network':76 'no-api-key' 'offer':55 'ohlcv':180 'openapi':163 'page':148 'paramet':202 'part':46 'payment':42,119,127 'per':13,27,108 'per-request-pricing' 'platform':51 'post':82 'price':3,17,34,144 'prompt':155 'protocol':43 'provid':31,130 'queri':201 'rang':182 'rate':133 'readm':147 'render':150 'request':14,28,83,109 'request/response':166 'requir':118 'respons':194 'return':85 'schema':164 'settl':70 'spars':141 'specif':78 'stock':2,16,33,176 'stock market data' 'stock price history' 'stock-history' 'substant':158 'unit':98 'usdc':72,100,110 'usdc-base' 'use':111 'util':63 'valid':191 'via':7,21,123,189 'wallet':154 'walmart':37 'wmt':6,20,38 'x':126 'x-payment':125 'x402':8,22,41,68,88 'x402 stock API' 'x402-payment'","prices":[{"id":"ade03def-3c2d-4567-be37-86517ce48dfa","listingId":"2eb030c8-c793-441b-abfb-5f4cfce5c147","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/WMT/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":"2026-04-18T18:36:05.810Z"}],"sources":[{"listingId":"2eb030c8-c793-441b-abfb-5f4cfce5c147","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/WMT/history","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:36:05.810Z","lastSeenAt":"2026-04-29T13:33:58.526Z"}],"details":{"listingId":"2eb030c8-c793-441b-abfb-5f4cfce5c147","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/WMT/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":"The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/stocks/WMT/history"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stocks/WMT/history"},{"claim":"Platform advertises $0.02 per request, no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, pricing, API, and README pages render only 'Connect wallet' with no substantive documentation","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving historical stock price data for Walmart (WMT) for backtesting or analysis","Agent-driven financial research workflows that need pay-per-call stock data without API key management","Building dashboards or alerts that incorporate WMT price history"],"bestFor":["AI agents needing on-demand stock history without subscription commitments","Developers who want to pay per request with crypto (USDC on Base)","Low-volume or sporadic access to WMT historical prices"],"notFor":["High-frequency trading requiring sub-second latency and guaranteed SLAs","Users who need comprehensive multi-ticker coverage from a single documented API","Anyone requiring detailed API documentation, schemas, or support before integration"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:48.854Z"},"updatedAt":"2026-04-29T13:33:58.526Z"}}