{"id":"8cfd539a-6175-4dc5-be1f-4bd273cd2f51","shortId":"bNx3vs","kind":"x402","title":"OHLCV candlestick data for STX (Stacks) via pay-per-request x402 on Base","tagline":"OHLCV candlestick data for STX (Stacks) via pay-per-request x402 on Base","description":"This endpoint provides OHLCV (Open, High, Low, Close, Volume) market data for the STX (Stacks) cryptocurrency token. It is part of the lowpaymentfee.com platform, which offers a suite of data, analytics, AI, finance, and utility APIs all payable per-request via the x402 protocol on the Base network.\n\nThe endpoint is accessed via HTTP POST and costs $0.02 per request, settled in USDC on Base (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). No API keys or accounts are required — payment is handled inline via the X-PAYMENT header using the x402 protocol. The platform advertises no rate limits and instant access.\n\nThe specific request and response schemas for this OHLCV endpoint are not documented in the crawled material. The broader lowpaymentfee.com site lists many endpoints across categories (crypto, finance, AI, infrastructure) all at the same $0.02 price point, but detailed per-endpoint documentation was not available at crawl time. The endpoint is confirmed live, returning a valid x402 402 challenge.","tags":[],"capabilities":["ohlcv-data","crypto-market-data","stx-stacks","x402-payment","usdc-base","pay-per-request","no-api-key"],"categories":["finance","crypto"],"synonyms":["STX price history","Stacks OHLCV","crypto candlestick data","STX market data","cryptocurrency OHLCV API","Stacks token price"],"warnings":["No request or response schema documented for this endpoint — input parameters (e.g., time range, interval) are unknown","Documentation pages (/docs, /api, /pricing, /README) returned no useful content at crawl time","The platform lists many endpoints at the same price; unclear whether all are fully implemented or placeholders"],"endpointUrl":"https://lowpaymentfee.com/api/v1/crypto/STX/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/STX/ohlcv","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.400","qualityRationale":"The endpoint is confirmed live with a valid x402 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format for the OHLCV endpoint specifically, and the docs/pricing/API pages returned only 'Connect wallet' with no substantive content. The listing is functional but largely a stub in terms of developer 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'0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':96 '402':185 'STX market data' 'STX price history' 'Stacks OHLCV' 'Stacks token price' 'access':81,126 'account':101 'across':151 'advertis':120 'ai':60,155 'analyt':59 'api':64,98 'avail':172 'base':14,28,76,94 'broader':145 'candlestick':2,16 'categori':152 'challeng':186 'close':36 'confirm':179 'contract':95 'cost':86 'crawl':142,174 'crypto':153 'crypto candlestick data' 'crypto-market-data' 'cryptocurr':44 'cryptocurrency OHLCV API' 'data':3,17,39,58 'detail':165 'document':139,169 'endpoint':30,79,136,150,168,177 'financ':61,154 'handl':106 'header':113 'high':34 'http':83 'infrastructur':156 'inlin':107 'instant':125 'key':99 'limit':123 'list':148 'live':180 'low':35 'lowpaymentfee.com':51,146 'mani':149 'market':38 'materi':143 'network':77 'no-api-key' 'offer':54 'ohlcv':1,15,32,135 'ohlcv-data' 'open':33 'part':48 'pay':9,23 'pay-per-request':8,22 'payabl':66 'payment':104,112 'per':10,24,68,88,167 'per-endpoint':166 'per-request':67 'platform':52,119 'point':163 'post':84 'price':162 'protocol':73,117 'provid':31 'rate':122 'request':11,25,69,89,129 'requir':103 'respons':131 'return':181 'schema':132 'settl':90 'site':147 'specif':128 'stack':6,20,43 'stx':5,19,42 'stx-stacks' 'suit':56 'time':175 'token':45 'usdc':92 'usdc-base' 'use':114 'util':63 'valid':183 'via':7,21,70,82,108 'volum':37 'x':111 'x-payment':110 'x402':12,26,72,116,184 'x402-payment'","prices":[{"id":"eb5fdf2d-f68b-46f7-8f08-2bf1fa527f3e","listingId":"8cfd539a-6175-4dc5-be1f-4bd273cd2f51","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/STX/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":"2026-04-18T18:34:32.326Z"}],"sources":[{"listingId":"8cfd539a-6175-4dc5-be1f-4bd273cd2f51","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/crypto/STX/ohlcv","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:34:32.326Z","lastSeenAt":"2026-04-23T20:01:32.103Z"}],"details":{"listingId":"8cfd539a-6175-4dc5-be1f-4bd273cd2f51","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/crypto/STX/ohlcv \\\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 USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/crypto/STX/ohlcv"},{"claim":"Price is $0.02 per request (maxAmountRequired 20000 base units USDC = $0.02)","source_url":"https://lowpaymentfee.com"},{"claim":"No API keys, no rate limits, instant access, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/crypto/STX/ohlcv"}],"useCases":["Fetching historical OHLCV candlestick data for STX to build trading charts","Programmatic access to STX price data for backtesting trading strategies","Agents that need on-demand crypto market data without managing API keys","Integrating STX price feeds into dashboards or portfolio trackers"],"bestFor":["AI agents needing pay-per-call crypto market data with no signup","Developers building STX/Stacks trading tools or analytics","Applications requiring OHLCV data without subscription commitments"],"notFor":["High-frequency trading requiring sub-second latency and bulk data (no documented streaming or batch support)","Users who need free crypto data — every request costs $0.02","Non-STX tokens (this endpoint is specifically for STX; other token endpoints may exist separately)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T17:51:46.564Z"},"updatedAt":"2026-04-23T20:01:32.103Z"}}