{"id":"13136de8-84c4-42b6-967a-19e63ff2941f","shortId":"WThTBt","kind":"x402","title":"Stock data for ticker CB via x402 micropayment on Base, $0.02 per request in USDC.","tagline":"Stock data for ticker CB via x402 micropayment on Base, $0.02 per request in USDC.","description":"This endpoint at lowpaymentfee.com provides stock data for the ticker \"CB\" (Coinbase Global, Inc.) through an x402-protocol pay-per-call API. Each request costs $0.02 in USDC on the Base network. The endpoint accepts POST requests and returns JSON.\n\nThe provider, lowpaymentfee.com, hosts a broad catalog of x402-gated endpoints spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per call. The specific endpoint `/api/v1/stocks/CB` falls under the finance category and presumably returns stock price or quote data for the CB ticker. No API keys or rate limits are advertised; access is granted by attaching an x402 payment header with each request.\n\nDocumentation is extremely sparse. The crawled docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available. The endpoint is confirmed live (returns a proper 402 challenge), but the exact request body format and response structure are unknown. The x402 challenge specifies payment to address 0x1A2B...85F3 using USDC (0x8335...2913) on Base, with a max amount of 20000 base units (i.e., $0.02 given USDC's 6 decimals) and a 300-second timeout.","tags":[],"capabilities":["stock-data","x402-payment","usdc-micropayment","base-network","pay-per-call","json-api"],"categories":["finance","data"],"synonyms":["stock price API","CB stock quote","Coinbase stock data","equity data endpoint","x402 stock API","micropayment stock data","pay-per-request stock API"],"warnings":["No OpenAPI or schema documentation available — request body format and response structure are unknown.","Docs, pricing, and API pages all render only 'Connect wallet' with no technical content.","The specific data returned for /api/v1/stocks/CB (real-time quote, historical data, etc.) is unverified.","Provider hosts many diverse endpoints; quality and reliability of each is undocumented."],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/CB","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/CB","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","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 documented request/response schema, no examples, and the docs pages are empty. The actual data returned is entirely unknown, making this effectively a stub 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'0.02':11,26,58,98,223 '0x1a2b':206 '0x8335':210 '20000':219 '2913':211 '300':231 '402':186 '6':227 '85f3':207 'CB stock quote' 'Coinbase stock data' 'accept':67 'access':130 'address':205 'advertis':129 'ai/ml':88 'amount':217 'analyt':87 'api':54,123,151 'attach':134 'avail':177 'base':10,25,63,213,220 'base-network' 'bodi':192 'broad':78 'call':53,100 'catalog':79 'categori':109 'cb':5,20,41,120 'challeng':187,201 'coinbas':42 'confirm':181 'connect':157 'cost':57 'crawl':147 'crypto':91 'data':2,17,37,86,117 'decim':228 'detail':164 'doc':148 'document':142 'endpoint':32,66,84,103,179 'equity data endpoint' 'exact':190 'exampl':175 'extrem':144 'fall':105 'financ':90,108 'format':193 'gate':83 'given':224 'global':43 'grant':132 'header':138 'host':76 'i.e':222 'inc':44 'infer':89 'json':72 'json-api' 'key':124 'limit':127 'live':182 'lowpaymentfee.com':34,75 'max':216 'micropay':8,23 'micropayment stock data' 'network':64 'openapi':168 'page':152 'pay':51 'pay-per-cal':50 'pay-per-call' 'pay-per-request stock API' 'payload':176 'payment':137,203 'per':12,27,52,99 'post':68 'presum':111 'price':96,114,149 'prompt':159 'proper':185 'protocol':49 'provid':35,74 'quot':116 'rate':126 'render':154 'request':13,28,56,69,141,191 'request/response':171 'respons':195 'return':71,112,183 'schema':172 'second':232 'servic':94 'span':85 'spars':145 'spec':169 'specif':102 'specifi':202 'stock':1,16,36,113 'stock price API' 'stock-data' 'structur':196 'technic':163 'ticker':4,19,40,121 'timeout':233 'unit':221 'unknown':198 'usdc':15,30,60,209,225 'usdc-micropayment' 'use':208 'util':93 'via':6,21 'wallet':158 'x402':7,22,48,82,136,200 'x402 stock API' 'x402-gated':81 'x402-payment' 'x402-protocol':47","prices":[{"id":"c12b9004-bfbf-41bc-b4b4-431441864246","listingId":"13136de8-84c4-42b6-967a-19e63ff2941f","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/CB","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:36:07.643Z"}],"sources":[{"listingId":"13136de8-84c4-42b6-967a-19e63ff2941f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/CB","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:36:07.643Z","lastSeenAt":"2026-04-29T13:33:58.598Z"}],"details":{"listingId":"13136de8-84c4-42b6-967a-19e63ff2941f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/CB \\\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 valid x402 402 challenge with maxAmountRequired 20000 in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/stocks/CB"},{"claim":"All endpoints priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stocks/CB"}],"useCases":["Fetching current stock data for Coinbase (CB) without API key registration","Agent-driven portfolio monitoring that pays per request in USDC on Base","Integrating real-time equity data into automated trading or alerting workflows"],"bestFor":["Developers wanting keyless, pay-per-call stock data access","AI agents that can settle x402 micropayments on Base","Quick one-off stock lookups without subscription commitments"],"notFor":["High-frequency trading requiring sub-second latency guarantees (no SLA documented)","Users needing comprehensive multi-ticker bulk stock data in a single call","Anyone without a Base-network USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:48.77Z"},"updatedAt":"2026-04-29T13:33:58.598Z"}}