{"id":"307e0468-8798-423d-aa91-009a11dd5c1a","shortId":"DgAsZB","kind":"x402","title":"MKR OHLCV candlestick data via x402 micropayment on Base, $0.02 per request.","tagline":"MKR 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 MKR (Maker) cryptocurrency token. It is part of the lowpaymentfee.com platform, which offers a suite of data, AI, finance, and utility APIs all gated behind the x402 payment protocol on the Base network.\n\nThe endpoint accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers attach an X-PAYMENT header containing a signed USDC payment on Base. The maximum amount required per call is 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals). There are no API keys, no rate limits, and no subscription commitments — each request is paid individually at the time of the call.\n\nThe broader lowpaymentfee.com platform lists additional crypto endpoints (token quotes, gas estimates, price feeds, exchange rates) as well as AI/ML endpoints (sentiment analysis, summarization, classification, embeddings) and utility services (geocoding, validation, conversion). All share the same $0.02/request pricing model. Documentation beyond the landing page is sparse — the /docs, /api, /pricing, and /README pages all returned only a \"Connect wallet\" prompt with no further technical detail, so the exact request body schema and response format for this OHLCV endpoint are not documented in the crawled material.","tags":[],"capabilities":["ohlcv-candlestick-data","crypto-market-data","mkr-token-data","x402-micropayment","usdc-payment","base-network","per-request-pricing","no-api-key"],"categories":["finance","crypto"],"synonyms":["MKR price history","Maker OHLCV","crypto candlestick API","MKR candles","cryptocurrency OHLCV data","Maker token market data","MKR historical prices"],"warnings":["No request body schema documented — the required POST body fields (e.g., timeframe, date range) are unknown.","No response schema or example response available; actual OHLCV format is unverified.","All documentation pages (/docs, /pricing, /README, /api) returned only 'Connect wallet' with no technical content.","The platform lists many diverse endpoints (AI, finance, utilities) all at the same price, which may indicate a generic template rather than deeply implemented services."],"endpointUrl":"https://lowpaymentfee.com/api/v1/crypto/MKR/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/MKR/ohlcv","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (returns a valid 402 x402 challenge) and pricing is clear ($0.02 USDC on Base). However, there is no documented request schema, no response schema, no examples, and the docs/pricing/README pages are all empty beyond a wallet-connect prompt. The actual data content and parameters are entirely 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'/docs':192 '/pricing':194 '/readme':196 '/request':181 '0.02':10,22,114,180 '000':109 '20':108 '6':119 'MKR candles' 'MKR historical prices' 'MKR price history' 'Maker OHLCV' 'Maker token market data' 'accept':73 'addit':149 'ai':55 'ai/ml':163 'amount':103 'analysi':166 'api':59,124 'attach':88 'base':9,21,69,100,110 'base-network' 'behind':62 'beyond':185 'bodi':214 'broader':145 'call':106,143 'caller':87 'candlestick':3,15,34 'classif':168 'close':32 'commit':132 'connect':202 'contain':94 'convers':175 'crawl':228 'crypto':150 'crypto candlestick API' 'crypto-market-data' 'cryptocurr':40 'cryptocurrency OHLCV data' 'data':4,16,35,54 'decim':120 'detail':209 'document':184,225 'embed':169 'endpoint':26,72,151,164,222 'estim':155 'exact':212 'exchang':158 'feed':157 'financ':56 'format':218 'gas':154 'gate':61 'geocod':173 'handl':81 'header':93 'high':30 'individu':137 'inlin':82 'json':78 'key':125 'land':187 'limit':128 'list':148 'low':31 'lowpaymentfee.com':47,146 'maker':39 'materi':229 'maximum':102 'micropay':7,19 'mkr':1,13,38 'mkr-token-data' 'model':183 'network':70 'no-api-key' 'offer':50 'ohlcv':2,14,28,221 'ohlcv-candlestick-data' 'open':29 'page':188,197 'paid':136 'part':44 'payment':65,79,92,98 'per':11,23,105 'per-request-pricing' 'platform':48,147 'post':74 'price':156,182 'prompt':204 'protocol':66,86 'provid':27 'quot':153 'rate':127,159 'request':12,24,75,134,213 'requir':104 'respons':217 'return':77,199 'schema':215 'sentiment':165 'servic':172 'share':177 'sign':96 'sinc':116 'spars':190 'subscript':131 'suit':52 'summar':167 'technic':208 'time':140 'token':41,152 'unit':111 'usd':115 'usdc':97,113,117 'usdc-payment' 'use':118 'util':58,171 'valid':174 'via':5,17,83 'volum':33 'wallet':203 'well':161 'x':91 'x-payment':90 'x402':6,18,64,85 'x402-micropayment'","prices":[{"id":"394ecf27-30f2-4c50-bc23-dfc661323c2e","listingId":"307e0468-8798-423d-aa91-009a11dd5c1a","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/MKR/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":"2026-04-18T18:38:55.619Z"}],"sources":[{"listingId":"307e0468-8798-423d-aa91-009a11dd5c1a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/crypto/MKR/ohlcv","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:38:55.619Z","lastSeenAt":"2026-04-24T05:31:49.433Z"}],"details":{"listingId":"307e0468-8798-423d-aa91-009a11dd5c1a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/crypto/MKR/ohlcv \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\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/MKR/ohlcv"},{"claim":"All endpoints on lowpaymentfee.com 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":"The platform offers crypto endpoints including token quotes, gas estimates, price feeds, and exchange rates","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/crypto/MKR/ohlcv"}],"useCases":["Fetching MKR candlestick charts for trading dashboards","Backtesting trading strategies with MKR OHLCV data","Monitoring MKR price movements in automated agents","Integrating MKR market data into DeFi analytics pipelines"],"bestFor":["AI agents needing on-demand MKR market data without API key management","Developers who want pay-per-call crypto data with no subscription","Applications on Base that can settle USDC micropayments natively"],"notFor":["High-frequency trading requiring sub-second latency and bulk historical downloads","Users who need free or ad-supported crypto data","Projects requiring comprehensive multi-exchange aggregated OHLCV with documented schemas"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:40.343Z"},"updatedAt":"2026-04-24T05:31:49.433Z"}}