{"id":"27a3c850-d333-4b08-9602-eff623a24f03","shortId":"uszCJD","kind":"x402","title":"Pay-per-call stock data endpoint for ticker SO, settled in USDC on Base via x402.","tagline":"Pay-per-call stock data endpoint for ticker SO, settled in USDC on Base via x402.","description":"This x402-enabled endpoint at lowpaymentfee.com provides stock data for the ticker symbol SO (Southern Company) via a simple POST request. Payment is handled inline using the x402 protocol: each call costs $0.02 in USDC on the Base network, with no API keys, rate limits, or subscriptions required.\n\nThe endpoint is part of a broader platform (lowpaymentfee.com) that offers dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance/crypto market data, and utility services — all at a flat $0.02 per request. The specific endpoint `/api/v1/stocks/SO` appears to be a stock-specific route, likely returning price or quote data for the SO ticker. However, no detailed documentation, request/response schema, or example payloads are available from the crawled material; the docs, API, pricing, and README pages all returned only a \"Connect wallet\" prompt with no substantive content.\n\nBecause the endpoint returned a well-formed 402 challenge with x402 version 1, it is confirmed live. The payment is settled to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using USDC (`0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) on Base. The maximum amount required is 20,000 base units, which at 6 decimals equals $0.02 — consistent with the site's advertised flat pricing. No OpenAPI spec, AI plugin manifest, or agents.txt was found.","tags":[],"capabilities":["stock-data","pay-per-call","x402-payment","usdc-settlement","base-network","no-api-key","no-rate-limit"],"categories":["finance","data"],"synonyms":["stock price API","SO stock quote","Southern Company stock data","pay-per-request stock API","x402 stock endpoint","crypto-paid stock API","USDC stock data"],"warnings":["No documentation available — all doc pages return only a 'Connect wallet' prompt with no content","No request or response schema provided; the data format returned for /api/v1/stocks/SO is unknown","No OpenAPI spec, agents.txt, or AI plugin manifest found","The endpoint path suggests single-ticker access; broader stock coverage is unconfirmed"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/SO","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/SO","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 402 challenge and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no example payloads, and all documentation pages returned only a wallet-connect prompt with no useful content. The actual data returned by this endpoint is entirely 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'0.02':68,117,219 '000':211 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':199 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':202 '1':188 '20':210 '402':183 '6':216 'SO stock quote' 'Southern Company stock data' 'USDC stock data' 'address':198 'advertis':225 'agents.txt':235 'ai':231 'ai/ml':105 'amount':207 'analyt':104 'api':77,101,159 'appear':124 'avail':152 'base':15,32,73,204,212 'base-network' 'broader':90 'call':4,21,66,100 'challeng':184 'compani':51 'confirm':191 'connect':168 'consist':220 'content':174 'cost':67 'crawl':155 'crypto-paid stock API' 'data':6,23,44,103,109,137 'decim':217 'detail':144 'doc':158 'document':145 'dozen':95 'enabl':38 'endpoint':7,24,39,85,122,177 'equal':218 'exampl':149 'finance/crypto':107 'flat':116,226 'form':182 'found':237 'handl':59 'howev':142 'infer':106 'inlin':60 'key':78 'like':132 'limit':80 'live':192 'lowpaymentfee.com':41,92 'manifest':233 'market':108 'materi':156 'maximum':206 'network':74 'no-api-key' 'no-rate-limit' 'offer':94 'openapi':229 'page':163 'part':87 'pay':2,19,98 'pay-per-cal':1,18,97 'pay-per-call' 'pay-per-request stock API' 'payload':150 'payment':57,194 'per':3,20,99,118 'platform':91 'plugin':232 'post':55 'price':134,160,227 'prompt':170 'protocol':64 'provid':42 'quot':136 'rate':79 'readm':162 'request':56,119 'request/response':146 'requir':83,208 'return':133,165,178 'rout':131 'schema':147 'servic':112 'settl':11,28,196 'simpl':54 'site':223 'southern':50 'span':102 'spec':230 'specif':121,130 'stock':5,22,43,129 'stock price API' 'stock-data' 'stock-specif':128 'subscript':82 'substant':173 'symbol':48 'ticker':9,26,47,141 'unit':213 'usdc':13,30,70,201 'usdc-settlement' 'use':61,200 'util':111 'version':187 'via':16,33,52 'wallet':169 'well':181 'well-form':180 'x402':17,34,37,63,186 'x402 stock endpoint' 'x402-enabled':36 'x402-payment'","prices":[{"id":"a4c35efd-4d7b-4985-9e40-9303400bf3d5","listingId":"27a3c850-d333-4b08-9602-eff623a24f03","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/SO","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:32:50.409Z"}],"sources":[{"listingId":"27a3c850-d333-4b08-9602-eff623a24f03","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/SO","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:32:50.409Z","lastSeenAt":"2026-04-23T20:01:23.816Z"}],"details":{"listingId":"27a3c850-d333-4b08-9602-eff623a24f03","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/SO \\\n  -H \"X-PAYMENT: <x402-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 x402 version 1, confirming it is live","source_url":"https://lowpaymentfee.com/api/v1/stocks/SO"},{"claim":"Payment is 20,000 base units of USDC (USD Coin, 6 decimals) on Base, equaling $0.02","source_url":"https://lowpaymentfee.com/api/v1/stocks/SO"},{"claim":"The site advertises flat $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC contract address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/stocks/SO"}],"useCases":["Fetching current stock data for Southern Company (SO) without managing API keys or subscriptions","Integrating stock lookups into autonomous agent workflows that settle payments on-chain","Building trading dashboards that pay per data request using USDC on Base"],"bestFor":["Agents or bots needing on-demand stock data with crypto-native payment","Developers who want zero-signup, pay-as-you-go stock data access","x402-compatible clients looking for low-cost financial data endpoints"],"notFor":["Bulk historical stock data downloads (single-ticker, per-call pricing)","Users who need detailed documentation or guaranteed SLA before integrating","Non-crypto users who cannot settle payments in USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T19:18:55.492Z"},"updatedAt":"2026-04-23T20:01:23.816Z"}}