{"id":"6afd238c-4041-46cc-ac34-88093dde68f8","shortId":"YLu98K","kind":"x402","title":"OHLCV candlestick data for COMP (Compound) via pay-per-request x402 on Base.","tagline":"OHLCV candlestick data for COMP (Compound) via pay-per-request x402 on Base.","description":"This endpoint provides OHLCV (Open, High, Low, Close, Volume) candlestick data for the COMP (Compound) token. It is part of the lowpaymentfee.com platform, which offers a broad suite of pay-per-call APIs spanning crypto market data, finance, AI/ML inference, analytics, and utilities — all gated via the x402 payment protocol on the Base network.\n\nEach request costs $0.02 in USDC (the x402 challenge advertises a maxAmountRequired of 20000 base units against the USDC contract on Base, which at 6 decimals equals $0.02). There are no API keys, no rate limits, and no subscriptions — callers simply attach an X-PAYMENT header with a valid x402 payment proof. The endpoint accepts POST requests and returns JSON.\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. No OpenAPI schema, request/response examples, or parameter documentation were found. The exact request body format (e.g., how to specify timeframe, date range, or granularity for OHLCV data) is unknown and must be discovered experimentally.","tags":[],"capabilities":["ohlcv-candlestick-data","crypto-market-data","comp-token","x402-payment","base-network","usdc-settlement","pay-per-request"],"categories":["finance","crypto"],"synonyms":["COMP OHLCV","Compound candlestick data","crypto candlestick API","COMP price history","OHLCV API","crypto market data API","Compound token chart data"],"warnings":["No documentation available — /docs, /api, /pricing, and /README all return only a wallet-connect prompt with no technical content","No OpenAPI or JSON schema provided for request or response bodies","Request parameters (timeframe, date range, granularity) are completely undocumented and must be guessed","The platform lists many diverse API categories (AI, analytics, geo, etc.) but provides no evidence of actual backend implementations"],"endpointUrl":"https://lowpaymentfee.com/api/v1/crypto/COMP/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/COMP/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 (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no request/response examples, and no parameter descriptions. The exact request format and response structure are entirely 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'/docs':154 '/pricing':156 '/readme':158 '0.02':87,111 '20000':97 '6':108 'COMP OHLCV' 'COMP price history' 'Compound candlestick data' 'Compound token chart data' 'OHLCV API' 'accept':139 'advertis':93 'ai/ml':68 'analyt':70 'api':62,115 'attach':125 'base':14,28,82,98,105 'base-network' 'beyond':146 'bodi':185 'broad':55 'call':61 'caller':123 'candlestick':2,16,38 'challeng':92 'close':36 'comp':5,19,42 'comp-token' 'compound':6,20,43 'connect':164 'contract':103 'cost':86 'crypto':64 'crypto candlestick API' 'crypto market data API' 'crypto-market-data' 'data':3,17,39,66,198 'date':192 'decim':109 'detail':171 'discov':204 'document':145,179 'e.g':187 'endpoint':30,138 'equal':110 'exact':183 'exampl':176 'experiment':205 'extrem':151 'financ':67 'format':186 'found':181 'gate':74 'granular':195 'header':130 'high':34 'infer':69 'json':144 'key':116 'land':148 'limit':119 'low':35 'lowpaymentfee.com':50 'market':65 'maxamountrequir':95 'must':202 'network':83 'offer':53 'ohlcv':1,15,32,197 'ohlcv-candlestick-data' 'open':33 'openapi':173 'page':149,159 'paramet':178 'part':47 'pay':9,23,59 'pay-per-cal':58 'pay-per-request':8,22 'payment':78,129,135 'per':10,24,60 'platform':51 'post':140 'prompt':166 'proof':136 'protocol':79 'provid':31 'rang':193 'rate':118 'render':161 'request':11,25,85,141,184 'request/response':175 'return':143 'schema':174 'simpli':124 'span':63 'spars':152 'specifi':190 'subscript':122 'suit':56 'technic':170 'timefram':191 'token':44 'unit':99 'unknown':200 'usdc':89,102 'usdc-settlement' 'util':72 'valid':133 'via':7,21,75 'volum':37 'wallet':165 'x':128 'x-payment':127 'x402':12,26,77,91,134 'x402-payment'","prices":[{"id":"46623b4b-f1a1-408d-8f07-894ac277c4cd","listingId":"6afd238c-4041-46cc-ac34-88093dde68f8","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/COMP/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":"2026-04-18T18:32:29.107Z"}],"sources":[{"listingId":"6afd238c-4041-46cc-ac34-88093dde68f8","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/crypto/COMP/ohlcv","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:32:29.107Z","lastSeenAt":"2026-04-23T20:01:22.082Z"}],"details":{"listingId":"6afd238c-4041-46cc-ac34-88093dde68f8","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/crypto/COMP/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 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/crypto/COMP/ohlcv"},{"claim":"USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/crypto/COMP/ohlcv"},{"claim":"Platform advertises $0.02 per request, no API keys, no rate limits, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, API, pricing, and README pages render only a Connect wallet prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Fetching historical OHLCV candlestick data for COMP to build trading charts","Backtesting trading strategies using COMP price and volume data","Integrating COMP market data into portfolio dashboards or bots","Agent-driven crypto analysis workflows that need per-call payment without API keys"],"bestFor":["Agents or apps needing on-demand COMP OHLCV data without subscriptions","Developers who prefer crypto-native pay-per-call pricing on Base","Low-volume or sporadic access to COMP candlestick data"],"notFor":["High-frequency trading requiring sub-second latency and guaranteed SLAs","Users who need comprehensive documentation or OpenAPI specs before integrating","Bulk historical data downloads where per-call pricing would be cost-prohibitive"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T17:23:02.511Z"},"updatedAt":"2026-04-23T20:01:22.082Z"}}