{"id":"ed4f3f32-3a5b-4370-8929-dd379f8b471f","shortId":"MSUCHT","kind":"x402","title":"OHLCV candlestick data for Ethereum Classic (ETC) via x402 micropayment at $0.02/request on Base.","tagline":"OHLCV candlestick data for Ethereum Classic (ETC) via x402 micropayment at $0.02/request on Base.","description":"This endpoint provides OHLCV (Open, High, Low, Close, Volume) market data for Ethereum Classic (ETC). It is part of the lowpaymentfee.com platform, which offers a suite of data, AI, finance, and utility APIs all priced at $0.02 per request, settled via the x402 protocol on the Base network using USDC.\n\nThe endpoint is accessed via HTTP POST and requires an X-PAYMENT header containing a valid x402 payment proof. The x402 challenge confirms the endpoint is live, accepting payments to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a maximum amount of 20,000 base units of USDC (i.e., $0.02, since USDC uses 6 decimals). There are no API keys, no rate limits, and no subscription commitments — each call is independently paid.\n\nDocumentation on the site is extremely sparse. The docs, API reference, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional content. The exact request body schema (e.g., which time intervals or date ranges are supported) and the response format are not documented. Users should expect a JSON response containing OHLCV candlestick fields, but the precise structure must be discovered empirically.","tags":[],"capabilities":["ohlcv-data","crypto-market-data","ethereum-classic","x402-payment","usdc-settlement","base-network","per-request-pricing","no-api-key"],"categories":["finance","crypto"],"synonyms":["ETC candlestick data","Ethereum Classic OHLCV","ETC price history","crypto candlestick API","ETC market data","OHLCV API"],"warnings":["No API documentation available — docs, pricing, and README pages all show only 'Connect wallet'","Request body schema and response format are completely undocumented","No example requests or responses available; users must discover the API shape empirically","The endpoint's specific capabilities (supported intervals, date ranges, etc.) are unknown"],"endpointUrl":"https://lowpaymentfee.com/api/v1/crypto/ETC/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/ETC/ohlcv","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02/request in USDC on Base). However, there is no documentation for request parameters, response schema, or examples. The docs/pricing/README pages are all empty beyond a wallet connect prompt, making this effectively a stub 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'0.02':12,27,67,126 '000':120 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':113 '20':119 '6':130 'ETC candlestick data' 'ETC market data' 'ETC price history' 'Ethereum Classic OHLCV' 'OHLCV API' 'accept':109 'access':84 'addit':173 'address':112 'ai':59 'amount':117 'api':63,135,158 'base':15,30,77,121 'base-network' 'bodi':178 'call':145 'candlestick':2,17,204 'challeng':103 'classic':6,21,44 'close':38 'commit':143 'confirm':104 'connect':168 'contain':95,202 'content':174 'crypto candlestick API' 'crypto-market-data' 'data':3,18,41,58 'date':185 'decim':131 'discov':212 'doc':157 'document':149,195 'e.g':180 'empir':213 'endpoint':32,82,106 'etc':7,22,45 'ethereum':5,20,43 'ethereum-classic' 'exact':176 'expect':198 'extrem':154 'field':205 'financ':60 'format':192 'header':94 'high':36 'http':86 'i.e':125 'independ':147 'interv':183 'json':200 'key':136 'limit':139 'live':108 'low':37 'lowpaymentfee.com':51 'market':40 'maximum':116 'micropay':10,25 'must':210 'network':78 'no-api-key' 'offer':54 'ohlcv':1,16,34,203 'ohlcv-data' 'open':35 'page':163 'paid':148 'part':48 'payment':93,99,110 'per':68 'per-request-pricing' 'platform':52 'post':87 'precis':208 'price':65,160 'prompt':170 'proof':100 'protocol':74 'provid':33 'rang':186 'rate':138 'readm':162 'refer':159 'render':165 'request':69,177 'requir':89 'respons':191,201 'schema':179 'settl':70 'sinc':127 'site':152 'spars':155 'structur':209 'subscript':142 'suit':56 'support':188 'time':182 'unit':122 'usdc':80,124,128 'usdc-settlement' 'use':79,129 'user':196 'util':62 'valid':97 'via':8,23,71,85 'volum':39 'wallet':169 'x':92 'x-payment':91 'x402':9,24,73,98,102 'x402-payment'","prices":[{"id":"d2908259-5519-4a89-acfd-5656db10a4c6","listingId":"ed4f3f32-3a5b-4370-8929-dd379f8b471f","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/ETC/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":"2026-04-18T18:34:51.574Z"}],"sources":[{"listingId":"ed4f3f32-3a5b-4370-8929-dd379f8b471f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/crypto/ETC/ohlcv","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:34:51.574Z","lastSeenAt":"2026-04-23T20:01:33.447Z"}],"details":{"listingId":"ed4f3f32-3a5b-4370-8929-dd379f8b471f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/crypto/ETC/ohlcv \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_proof>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/crypto/ETC/ohlcv"},{"claim":"All APIs on the platform are 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 address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 (Base USDC)","source_url":"https://lowpaymentfee.com/api/v1/crypto/ETC/ohlcv"}],"useCases":["Fetching historical OHLCV candlestick data for Ethereum Classic for charting or backtesting","Integrating ETC price data into trading bots or portfolio dashboards","On-demand crypto market data retrieval without API key management"],"bestFor":["Agents or apps needing pay-per-call ETC market data with no subscription","Developers who want keyless, instant access to crypto OHLCV data","x402-compatible clients settling micropayments on Base"],"notFor":["Users needing free or bulk historical data downloads","Applications requiring documented, stable API schemas with guaranteed SLAs","Real-time streaming or websocket-based market data feeds"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T17:20:32.357Z"},"updatedAt":"2026-04-23T20:01:33.447Z"}}