{"id":"9eb0aa44-2235-4b62-94a8-48191ce15e64","shortId":"dEBLXC","kind":"x402","title":"KLAY OHLCV candlestick data via x402 micropayment on Base, $0.02 per request.","tagline":"KLAY OHLCV candlestick data via x402 micropayment on Base, $0.02 per request.","description":"This endpoint provides OHLCV (Open, High, Low, Close, Volume) candlestick data for the KLAY (Klaytn) cryptocurrency token. It is part of the lowpaymentfee.com platform, which offers a suite of data, analytics, AI, finance, and utility APIs all gated behind the x402 payment protocol.\n\nThe endpoint accepts POST requests and is paid per-call using USDC on the Base network. The x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (6 decimals), which equals $0.02 per request — consistent with the platform's uniform $0.02/request pricing displayed on its landing page. No API keys or rate limits are required; access is granted instantly upon valid x402 payment.\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 technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint is confirmed live (returns a proper 402 challenge), but the exact request parameters (e.g., time range, interval, pagination) and response format must be discovered experimentally.","tags":[],"capabilities":["ohlcv-candlestick-data","crypto-market-data","klay-token","x402-micropayment","usdc-payment","base-network","per-request-pricing"],"categories":["finance","crypto"],"synonyms":["KLAY candlestick","Klaytn OHLCV","crypto OHLCV API","KLAY price history","KLAY market data","candlestick chart data","crypto historical data"],"warnings":["No API documentation available — /docs, /api, /pricing, and /README pages all show only a wallet-connect prompt with no technical content.","No OpenAPI or JSON schema for request or response bodies; request parameters and response format are unknown.","The specific KLAY OHLCV endpoint is not listed on the landing page (only generic crypto endpoints like /crypto/quotes and /crypto/gas are shown), so its existence and behavior are inferred solely from the 402 challenge."],"endpointUrl":"https://lowpaymentfee.com/api/v1/crypto/KLAY/ohlcv","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/crypto/KLAY/ohlcv","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/request in USDC on Base). However, there is no OpenAPI spec, no documented request parameters, no response schema, and no example payloads. The docs pages are empty. This is effectively a stub listing with only the x402 challenge and landing page to go 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'/docs':144 '/pricing':146 '/readme':148 '/request':112 '0.02':10,22,102,111 '000':93 '20':92 '402':184 '6':98 'KLAY candlestick' 'KLAY market data' 'KLAY price history' 'Klaytn OHLCV' 'accept':70 'access':127 'advertis':88 'ai':56 'analyt':55 'api':60,120 'avail':175 'base':9,21,83,94 'base-network' 'behind':63 'beyond':136 'call':78 'candlestick':3,15,34 'candlestick chart data' 'challeng':87,185 'close':32 'confirm':179 'connect':154 'consist':105 'crypto OHLCV API' 'crypto historical data' 'crypto-market-data' 'cryptocurr':40 'data':4,16,35,54 'decim':99 'detail':161 'discov':201 'display':114 'document':135,170 'e.g':191 'endpoint':26,69,177 'equal':101 'exact':188 'exampl':173 'experiment':202 'extrem':141 'financ':57 'format':198 'gate':62 'grant':129 'high':30 'instant':130 'interv':194 'key':121 'klay':1,13,38 'klay-token' 'klaytn':39 'land':117,138 'limit':124 'live':180 'low':31 'lowpaymentfee.com':47 'maxamountrequir':90 'micropay':7,19 'must':199 'network':84 'offer':50 'ohlcv':2,14,28 'ohlcv-candlestick-data' 'open':29 'openapi':165 'page':118,139,149 'pagin':195 'paid':75 'paramet':190 'part':44 'payload':174 'payment':66,134 'per':11,23,77,103 'per-cal':76 'per-request-pricing' 'platform':48,108 'post':71 'price':113 'prompt':156 'proper':183 'protocol':67 'provid':27 'rang':193 'rate':123 'render':151 'request':12,24,72,104,189 'request/response':168 'requir':126 'respons':197 'return':181 'schema':169 'spars':142 'spec':166 'suit':52 'technic':160 'time':192 'token':41 'uniform':110 'unit':95 'upon':131 'usdc':80,97 'usdc-payment' 'use':79 'util':59 'valid':132 'via':5,17 'volum':33 'wallet':155 'x402':6,18,65,86,133 'x402-micropayment'","prices":[{"id":"68b4d1dc-a41c-4f16-b752-3a9b370394dc","listingId":"9eb0aa44-2235-4b62-94a8-48191ce15e64","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/crypto/KLAY/ohlcv","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:34:13.120Z"}],"sources":[{"listingId":"9eb0aa44-2235-4b62-94a8-48191ce15e64","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/crypto/KLAY/ohlcv","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:34:13.120Z","lastSeenAt":"2026-04-23T20:01:30.645Z"}],"details":{"listingId":"9eb0aa44-2235-4b62-94a8-48191ce15e64","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/crypto/KLAY/ohlcv \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Uniform pricing of $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge returns maxAmountRequired of 20000 base units of USDC (USD Coin) on Base network","source_url":"https://lowpaymentfee.com/api/v1/crypto/KLAY/ohlcv"},{"claim":"USDC asset contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/crypto/KLAY/ohlcv"}],"useCases":["Fetching KLAY historical price candles for charting or technical analysis","Feeding KLAY OHLCV data into trading bots or algorithmic strategies","Building dashboards that display Klaytn token price movements","Backtesting trading strategies against KLAY historical data"],"bestFor":["Agents or bots that need on-demand KLAY candlestick data without API key management","Developers who prefer pay-per-call crypto data access via x402","Low-volume or sporadic OHLCV queries where subscription pricing is wasteful"],"notFor":["High-frequency trading requiring sub-second latency and bulk historical downloads","Users who need comprehensive multi-token OHLCV data in a single call","Anyone without a Base-network USDC wallet or x402-compatible client"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T18:16:05.573Z"},"updatedAt":"2026-04-23T20:01:30.645Z"}}