{"id":"50fc1963-19d1-43ad-9874-f59aad1f8acd","shortId":"cX6SPm","kind":"x402","title":"Historical EUR/NZD forex data via x402 micropayment on Base network, $0.02 per request.","tagline":"Historical EUR/NZD forex data via x402 micropayment on Base network, $0.02 per request.","description":"This endpoint provides historical foreign exchange data for the EUR/NZD currency pair. It is part of the lowpaymentfee.com platform, which offers a collection of pay-per-request APIs spanning finance, analytics, AI, and utility services. All endpoints use the x402 payment protocol, settling in USDC on the Base network.\n\nThe endpoint accepts POST requests and returns JSON. Payment is handled via the X-PAYMENT header using the x402 exact scheme — no API keys, accounts, or rate limits are required. The max amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. The payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 using the USDC contract on Base (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913).\n\nDocumentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a \"Connect wallet\" prompt with no additional content. There is no OpenAPI schema, no description of request parameters (e.g., date range, granularity), and no example responses. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data format and available query parameters must be discovered by making a paid request.","tags":[],"capabilities":["forex-history","eur-nzd","x402-payment","usdc-base","pay-per-request","json-api"],"categories":["finance","forex"],"synonyms":["EUR/NZD historical rates","euro new zealand dollar exchange rate","forex historical data","currency pair history","FX rate history","EURNZD"],"warnings":["No documentation available — docs, API, pricing, and README pages all return only a wallet-connect prompt with no content.","No OpenAPI or input/output schema provided; request parameters (date range, granularity, etc.) are unknown.","No example responses available; actual data format must be discovered via a paid request.","The endpoint description from the provider is generic ('Premium API Access') and does not describe the forex history functionality."],"endpointUrl":"https://lowpaymentfee.com/api/v1/forex/EURNZD/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/EURNZD/history","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and no description of supported parameters. The listing is essentially a stub with only payment metadata 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'000':116 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':133 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':140 '20':115 '402':190 '6':121 'EUR/NZD historical rates' 'EURNZD' 'FX rate history' 'accept':79 'account':102 'actual':194 'addit':162 'address':132 'ai':59 'amount':110 'analyt':58 'api':55,100,148 'avail':198 'base':9,22,75,117,139 'call':113 'challeng':191 'collect':49 'confirm':185 'connect':157 'content':163 'contract':137 'crawl':146 'currenc':37 'currency pair history' 'data':4,17,33,195 'date':175 'decim':122 'descript':170 'discov':203 'doc':147 'document':141 'e.g':174 'endpoint':28,64,78,183 'equal':124 'eur-nzd' 'eur/nzd':2,15,36 'euro new zealand dollar exchange rate' 'exact':97 'exampl':180 'exchang':32 'extrem':143 'financ':57 'foreign':31 'forex':3,16 'forex historical data' 'forex-history' 'format':196 'granular':177 'handl':87 'header':93 'histor':1,14,30 'json':84 'json-api' 'key':101 'limit':105 'live':186 'lowpaymentfee.com':44 'make':205 'max':109 'micropay':7,20 'must':201 'network':10,23,76 'offer':47 'openapi':167 'page':152 'paid':207 'pair':38 'paramet':173,200 'part':41 'pay':52 'pay-per-request':51 'payment':68,85,92,128 'per':12,25,53,112 'platform':45 'post':80 'price':149 'prompt':159 'proper':189 'protocol':69 'provid':29 'queri':199 'rang':176 'rate':104 'readm':151 'request':13,26,54,81,172,208 'requir':107,111 'respons':181 'return':83,154,187 'schema':168 'scheme':98 'sent':130 'servic':62 'settl':70 'span':56 'spars':144 'unit':118 'usd':126 'usdc':72,120,136 'usdc-base' 'use':65,94,134 'util':61 'via':5,18,88 'wallet':158 'x':91 'x-payment':90 'x402':6,19,67,96 'x402-payment'","prices":[{"id":"f716d85d-d495-46ce-be60-2407d156061c","listingId":"50fc1963-19d1-43ad-9874-f59aad1f8acd","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/EURNZD/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":"2026-04-18T18:46:34.197Z"}],"sources":[{"listingId":"50fc1963-19d1-43ad-9874-f59aad1f8acd","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/forex/EURNZD/history","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:46:34.197Z","lastSeenAt":"2026-04-29T15:05:03.169Z"}],"details":{"listingId":"50fc1963-19d1-43ad-9874-f59aad1f8acd","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/forex/EURNZD/history \\\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":"The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/forex/EURNZD/history"},{"claim":"USDC contract address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/forex/EURNZD/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":"The endpoint accepts POST method as indicated by the outputSchema","source_url":"https://lowpaymentfee.com/api/v1/forex/EURNZD/history"}],"useCases":["Retrieving historical EUR/NZD exchange rate data for backtesting trading strategies","Building dashboards or reports that track EUR/NZD movements over time","Feeding forex history into financial models or risk calculations","Programmatic access to FX data without API key registration"],"bestFor":["Agents or bots that need on-demand forex history without account setup","Low-volume or sporadic forex data needs where $0.02/request is cost-effective","Developers prototyping with x402 micropayment-enabled APIs"],"notFor":["High-frequency trading requiring sub-second latency and bulk historical downloads","Users who need comprehensive multi-pair forex data in a single call","Anyone without a Base-network USDC wallet or x402-compatible client"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:18.306Z"},"updatedAt":"2026-04-29T15:05:03.169Z"}}