{"id":"e1a8e12c-8ed0-48d1-98b0-40ebaf5bb69e","shortId":"jeTMtg","kind":"x402","title":"Historical NZD/CAD forex data via x402 micropayment on Base for $0.02 per request.","tagline":"Historical NZD/CAD forex data via x402 micropayment on Base for $0.02 per request.","description":"This endpoint provides historical forex data for the NZD/CAD currency pair, accessible through the x402 payment protocol. It is hosted on lowpaymentfee.com, a platform offering a variety of pay-per-request APIs spanning data analytics, AI/ML, finance, crypto, and utility services. Each request costs $0.02 (20,000 base units of USDC on the Base network, with 6 decimals). No API keys or rate limits are required — payment is handled inline via the x402 X-PAYMENT header.\n\nThe endpoint accepts POST requests and returns JSON. The specific response schema for the forex history endpoint is not documented in the crawled material, so the exact fields returned (e.g., OHLCV candles, date ranges, granularity options) are unknown. The platform advertises simple pricing at $0.02 per request across all its endpoints, with settlement in USDC on the Base L2 network.\n\nDocumentation on the site is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no example requests or responses, and no description of supported query parameters or response formats. Users should expect to experiment or contact the provider for integration details.","tags":[],"capabilities":["forex-history","nzd-cad","x402-payment","usdc-base","pay-per-request","json-api"],"categories":["finance","forex"],"synonyms":["NZD CAD exchange rate history","New Zealand dollar Canadian dollar","forex historical data","currency pair history","FX rate history","NZD/CAD OHLCV"],"warnings":["No API documentation available — /docs, /api, /pricing, and /README pages all show only 'Connect wallet' with no technical content.","No OpenAPI or schema definition found; request parameters and response format are unknown.","The specific data returned by the forex history endpoint (date ranges, granularity, fields) is entirely undocumented."],"endpointUrl":"https://lowpaymentfee.com/api/v1/forex/NZDCAD/history","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/forex/NZDCAD/history","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge with clear pricing. However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and the docs pages are empty stubs. The listing is essentially a stub with only pricing and protocol details 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'/docs':173 '/pricing':175 '/readme':177 '0.02':11,24,72,149 '000':74 '20':73 '6':84 'FX rate history' 'NZD CAD exchange rate history' 'NZD/CAD OHLCV' 'New Zealand dollar Canadian dollar' 'accept':107 'access':38 'across':152 'advertis':145 'ai/ml':63 'analyt':62 'api':59,87 'base':9,22,75,81,162 'candl':136 'connect':183 'contact':217 'cost':71 'crawl':127 'crypto':65 'currenc':36 'currency pair history' 'data':4,17,32,61 'date':137 'decim':85 'descript':203 'detail':190,222 'document':124,165 'e.g':134 'endpoint':28,106,121,155 'exact':131 'exampl':197 'expect':213 'experi':215 'extrem':170 'field':132 'financ':64 'forex':3,16,31,119 'forex historical data' 'forex-history' 'format':210 'granular':139 'handl':96 'header':104 'histor':1,14,30 'histori':120 'host':46 'inlin':97 'integr':221 'json':112 'json-api' 'key':88 'l2':163 'limit':91 'lowpaymentfee.com':48 'materi':128 'micropay':7,20 'network':82,164 'nzd-cad' 'nzd/cad':2,15,35 'offer':51 'ohlcv':135 'openapi':194 'option':140 'page':178 'pair':37 'paramet':207 'pay':56 'pay-per-request':55 'payment':42,94,103 'per':12,25,57,150 'platform':50,144 'post':108 'price':147 'prompt':185 'protocol':43 'provid':29,219 'queri':206 'rang':138 'rate':90 'render':180 'request':13,26,58,70,109,151,198 'requir':93 'respons':115,200,209 'return':111,133 'schema':116 'servic':68 'settlement':157 'simpl':146 'site':168 'span':60 'spars':171 'spec':195 'specif':114 'support':205 'technic':189 'unit':76 'unknown':142 'usdc':78,159 'usdc-base' 'user':211 'util':67 'varieti':53 'via':5,18,98 'wallet':184 'x':102 'x-payment':101 'x402':6,19,41,100 'x402-payment'","prices":[{"id":"e7c428cc-ffd0-483b-aca3-0f52fa7ea7fa","listingId":"e1a8e12c-8ed0-48d1-98b0-40ebaf5bb69e","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/forex/NZDCAD/history","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:46:43.748Z"}],"sources":[{"listingId":"e1a8e12c-8ed0-48d1-98b0-40ebaf5bb69e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/forex/NZDCAD/history","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:46:43.748Z","lastSeenAt":"2026-04-29T13:34:31.191Z"}],"details":{"listingId":"e1a8e12c-8ed0-48d1-98b0-40ebaf5bb69e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/forex/NZDCAD/history \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\"","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/forex/NZDCAD/history"},{"claim":"Platform pricing is $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 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/forex/NZDCAD/history"}],"useCases":["Retrieving historical NZD/CAD exchange rate data for backtesting trading strategies","Feeding forex history into financial models or dashboards","Programmatic access to NZD/CAD price history without API key management"],"bestFor":["Agents or bots needing on-demand forex history with no signup","Developers prototyping forex-related applications on Base","Pay-as-you-go access to NZD/CAD historical rates"],"notFor":["Real-time streaming forex data (this is a per-request history endpoint)","Users who need comprehensive documentation or SLA guarantees before integrating"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:17.848Z"},"updatedAt":"2026-04-29T13:34:31.191Z"}}