{"id":"d0c56e66-94cf-41ed-a111-fccdc2d3b856","shortId":"YGufbY","kind":"x402","title":"Historical stock data for SPGI (S&P Global) via x402 micropayment on Base, $0.02/request.","tagline":"Historical stock data for SPGI (S&P Global) via x402 micropayment on Base, $0.02/request.","description":"This endpoint provides historical stock data for S&P Global (ticker: SPGI) through the x402 payment protocol. It is hosted on lowpaymentfee.com, a platform offering a variety of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform use the same pricing model: $0.02 per request, settled in USDC on the Base network.\n\nThe specific endpoint at `/api/v1/stocks/SPGI/history` accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol — callers include an `X-PAYMENT` header with a signed payment proof for up to 20,000 base units of USDC (i.e., $0.02). No API keys, accounts, or rate limits are advertised; access is gated solely by the micropayment. The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using USDC contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base.\n\nDocumentation beyond the landing page is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what fields the historical stock data includes or what query parameters are accepted. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data format and coverage are unknown.","tags":[],"capabilities":["stock-history","x402-payment","usdc-base","per-request-pricing","no-api-key","json-response"],"categories":["finance","data"],"synonyms":["SPGI stock history","S&P Global historical data","stock price API","equity history endpoint","x402 stock data","micropayment stock API"],"warnings":["No API documentation available — docs, pricing, and README pages only show 'Connect wallet'","No OpenAPI or JSON schema describing request parameters or response format","Actual data coverage, fields, and date ranges for SPGI history are unknown","The platform lists many diverse API categories (AI, crypto, geocoding, stocks) at uniform $0.02 pricing — data quality and sourcing are unverified"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/SPGI/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/SPGI/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 with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and no description of what data fields or query parameters the endpoint supports. The docs pages are empty beyond a wallet-connect 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'/request':15,30 '0.02':14,29,84,135 '000':129 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':158 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':162 '20':128 '402':224 'S&P Global historical data' 'SPGI stock history' 'accept':99,215 'access':145 'account':139 'actual':228 'address':157 'advertis':144 'ai/ml':67 'analyt':66 'api':63,137,175 'base':13,28,92,130,164 'beyond':166 'caller':113 'challeng':225 'confirm':219 'connect':184 'content':190 'contract':161 'coverag':232 'crypto':70 'data':3,18,36,65,208,229 'descript':201 'doc':174 'document':165 'endpoint':32,75,96,217 'equity history endpoint' 'exampl':198 'extrem':171 'field':204 'financ':69 'format':230 'gate':147 'global':8,23,40 'handl':107 'header':119 'histor':1,16,34,206 'host':50 'i.e':134 'includ':114,209 'infer':68 'inlin':108 'json':104 'json-response' 'key':138 'land':168 'limit':142 'live':220 'lowpaymentfee.com':52 'micropay':11,26,151 'micropayment stock API' 'model':83 'network':93 'no-api-key' 'offer':55 'openapi':194 'p':7,22,39 'page':169,179 'paramet':213 'pay':60 'pay-per-request':59 'payment':46,105,118,123,153 'per':61,85 'per-request-pricing' 'platform':54,78 'post':100 'price':82,176 'prompt':186 'proof':124 'proper':223 'protocol':47,112 'provid':33 'queri':212 'rate':141 'readm':178 'render':181 'request':62,86,101 'request/response':197 'return':103,221 'schema':195 'sent':155 'servic':73 'settl':87 'sign':122 'sole':148 'span':64 'spars':172 'specif':95 'spgi':5,20,42 'stock':2,17,35,207 'stock price API' 'stock-history' 'ticker':41 'unit':131 'unknown':234 'usdc':89,133,160 'usdc-base' 'use':79,159 'util':72 'varieti':57 'via':9,24,109 'wallet':185 'x':117 'x-payment':116 'x402':10,25,45,111 'x402 stock data' 'x402-payment'","prices":[{"id":"ad2e5ba9-fb1b-42e0-b4a4-29b821543766","listingId":"d0c56e66-94cf-41ed-a111-fccdc2d3b856","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/SPGI/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":"2026-04-18T18:33:28.313Z"}],"sources":[{"listingId":"d0c56e66-94cf-41ed-a111-fccdc2d3b856","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/SPGI/history","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:28.313Z","lastSeenAt":"2026-04-23T20:01:26.732Z"}],"details":{"listingId":"d0c56e66-94cf-41ed-a111-fccdc2d3b856","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/SPGI/history \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/stocks/SPGI/history"},{"claim":"All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/stocks/SPGI/history"},{"claim":"Docs, API, pricing, and README pages render only a 'Connect wallet' prompt with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving historical stock price data for S&P Global (SPGI)","Building financial dashboards that pull equity history on demand","Agent-driven portfolio analysis requiring per-call payment without subscriptions","Backtesting trading strategies with historical SPGI data"],"bestFor":["Agents or apps needing on-demand stock history without API key management","Low-volume or sporadic access to SPGI historical data","x402-compatible clients settling micropayments in USDC on Base"],"notFor":["High-frequency trading requiring sub-second latency and bulk data","Users who need comprehensive multi-ticker coverage from a single endpoint","Anyone without a Base-compatible wallet or x402 payment client"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T19:01:12.381Z"},"updatedAt":"2026-04-23T20:01:26.732Z"}}