{"id":"1f38410b-90a7-485f-9ae1-fbd8a1afa0e0","shortId":"vjtLMB","kind":"x402","title":"Pay-per-call OHLCV candlestick data for Filecoin (FIL) via x402 on Base.","tagline":"Pay-per-call OHLCV candlestick data for Filecoin (FIL) via x402 on Base.","description":"This endpoint provides OHLCV (Open-High-Low-Close-Volume) candlestick data for the Filecoin (FIL) cryptocurrency. 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 and settled via the x402 protocol on the Base network using USDC.\n\nThe endpoint accepts POST requests and returns JSON. Payment is handled inline via the X-PAYMENT header — no API keys, accounts, or rate limits are required. The x402 challenge confirms the endpoint is live, accepting up to 20,000 base units of USDC (i.e., $0.02) per call, paid to address 0x1A2B…85F3 on Base. The asset contract (0x8335…2913) is the canonical Base USDC contract.\n\nDocumentation beyond the landing page is extremely thin — the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no example payloads available. The exact query parameters (e.g., time range, interval) and response shape must be discovered experimentally. Because of this, the listing carries significant uncertainty about the precise capabilities and data quality of the endpoint.","tags":[],"capabilities":["ohlcv-candlestick-data","filecoin-market-data","crypto-price-history","x402-payment","base-network-usdc","pay-per-request"],"categories":["finance","crypto"],"synonyms":["FIL OHLCV","Filecoin candlestick","Filecoin price history","crypto OHLCV API","FIL market data","Filecoin open high low close volume"],"warnings":["No API documentation available — /docs, /api, /pricing, and /README pages all render only 'Connect wallet' with no content.","No OpenAPI or JSON schema provided; request parameters and response shape are entirely unknown.","No example requests or responses available; integration requires trial-and-error discovery.","The broader lowpaymentfee.com platform lists many diverse endpoints (AI, analytics, finance, utilities) all at $0.02 — data quality and reliability are unverified."],"endpointUrl":"https://lowpaymentfee.com/api/v1/crypto/FIL/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/FIL/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 confirms pricing and payment details, but there is no OpenAPI spec, no request/response schema, no documentation content (all doc pages show only 'Connect wallet'), and no example payloads. The endpoint's exact parameters and response format are unknown, making this effectively a stub 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'/docs':157 '/pricing':159 '/readme':161 '0.02':67,127 '000':121 '0x1a2b':133 '0x8335':140 '20':120 '2913':141 '85f3':134 'FIL OHLCV' 'FIL market data' 'Filecoin candlestick' 'Filecoin open high low close volume' 'Filecoin price history' 'accept':84,117 'account':103 'address':132 'ai':59 'api':63,101 'asset':138 'avail':186 'base':14,28,78,122,136,145 'base-network-usdc' 'beyond':149 'call':4,18,129 'candlestick':6,20,39 'canon':144 'capabl':213 'carri':207 'challeng':111 'close':37 'confirm':112 'connect':167 'content':173 'contract':139,147 'crypto OHLCV API' 'crypto-price-history' 'cryptocurr':45 'data':7,21,40,58,215 'discov':200 'document':148 'e.g':191 'endpoint':30,83,114,219 'exact':188 'exampl':184 'experiment':201 'extrem':154 'fil':10,24,44 'filecoin':9,23,43 'filecoin-market-data' 'financ':60 'handl':92 'header':99 'high':35 'i.e':126 'inlin':93 'interv':194 'json':89 'key':102 'land':151 'limit':106 'list':206 'live':116 'low':36 'lowpaymentfee.com':51 'must':198 'network':79 'offer':54 'ohlcv':5,19,32 'ohlcv-candlestick-data' 'open':34 'open-high-low-close-volum':33 'openapi':177 'page':152,162 'paid':130 'paramet':190 'part':48 'pay':2,16 'pay-per-cal':1,15 'pay-per-request' 'payload':185 'payment':90,98 'per':3,17,68,128 'platform':52 'post':85 'precis':212 'price':65 'prompt':169 'protocol':75 'provid':31 'qualiti':216 'queri':189 'rang':193 'rate':105 'render':164 'request':69,86 'request/response':180 'requir':108 'respons':196 'return':88 'schema':181 'settl':71 'shape':197 'signific':208 'spec':178 'suit':56 'thin':155 'time':192 'uncertainti':209 'unit':123 'usdc':81,125,146 'use':80 'util':62 'via':11,25,72,94 'volum':38 'wallet':168 'x':97 'x-payment':96 'x402':12,26,74,110 'x402-payment'","prices":[{"id":"448c500f-39eb-44d5-8fe2-0f88c1dfc5f1","listingId":"1f38410b-90a7-485f-9ae1-fbd8a1afa0e0","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/FIL/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":"2026-04-18T18:36:19.108Z"}],"sources":[{"listingId":"1f38410b-90a7-485f-9ae1-fbd8a1afa0e0","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/crypto/FIL/ohlcv","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:36:19.108Z","lastSeenAt":"2026-04-24T09:03:03.364Z"}],"details":{"listingId":"1f38410b-90a7-485f-9ae1-fbd8a1afa0e0","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/crypto/FIL/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 402 with x402 challenge confirming it is live on Base network using USDC at $0.02 per request","source_url":"https://lowpaymentfee.com/api/v1/crypto/FIL/ohlcv"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/crypto/FIL/ohlcv"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages (/docs, /api, /pricing, /README) render only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Fetching historical Filecoin price candles for charting or technical analysis","Feeding FIL OHLCV data into trading bots or backtesting engines","Providing Filecoin market data to AI agents that pay per call without API keys","Building dashboards that display FIL price trends"],"bestFor":["Agents or bots that need on-demand FIL candlestick data without subscription overhead","Developers prototyping crypto dashboards who want instant, keyless API access","x402-native workflows on Base that need market data"],"notFor":["High-frequency trading requiring sub-second latency or guaranteed SLAs","Users who need comprehensive multi-asset OHLCV data across hundreds of tokens in a single call","Anyone requiring detailed API documentation or schema guarantees before integration"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:48.228Z"},"updatedAt":"2026-04-24T09:03:03.364Z"}}