{"id":"10f67b53-8d3b-45a7-a05c-c5d05fb3c87f","shortId":"aCnMVN","kind":"x402","title":"NZD/USD forex rate via x402 micropayment on Base for $0.02 per request.","tagline":"NZD/USD forex rate via x402 micropayment on Base for $0.02 per request.","description":"This endpoint provides NZD/USD foreign exchange rate data, accessible through the x402 payment protocol on the Base network. Each request costs $0.02 (20,000 base units of USDC with 6 decimals) and requires no API keys, accounts, or rate limits — payment is handled per-call via an X-PAYMENT header settled in USDC on Base.\n\nThe endpoint is part of a broader suite of APIs offered by lowpaymentfee.com, which spans data analytics, AI/ML inference, finance, crypto, and utility services, all priced at $0.02 per request. The forex endpoint specifically serves the NZD/USD currency pair and returns JSON. The x402 challenge confirms the endpoint is live, using the \"exact\" payment scheme with a 300-second timeout.\n\nDocumentation is extremely sparse — the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The input schema indicates it accepts HTTP POST requests. Without documented request body parameters or response format, consumers will need to experiment or inspect responses to understand the data structure returned.","tags":[],"capabilities":["forex-rate","nzd-usd","x402-payment","usdc-base","per-request-pricing","no-api-key","json-response"],"categories":["finance","forex"],"synonyms":["NZD USD exchange rate","New Zealand dollar rate","forex API","currency pair rate","FX rate NZD","foreign exchange data","NZD/USD price"],"warnings":["No API documentation available — docs, pricing, and API pages all show only 'Connect wallet'","No OpenAPI or JSON schema for request or response bodies","No example responses available; data format and fields are unknown","The broader lowpaymentfee.com platform lists many diverse endpoints but provides no technical docs for any of them"],"endpointUrl":"https://lowpaymentfee.com/api/v1/forex/NZDUSD","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/NZDUSD","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 via a valid x402 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no examples, and all documentation pages render only a wallet-connect prompt. The listing is effectively a stub with confirmed 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'000':48 '20':47 '300':139 '6':54 'FX rate NZD' 'NZD USD exchange rate' 'NZD/USD price' 'New Zealand dollar rate' 'accept':183 'access':33 'account':61 'ai/ml':99 'analyt':98 'api':59,91,150 'avail':177 'base':8,20,41,49,81 'bodi':190 'broader':88 'call':70 'challeng':126 'confirm':127 'connect':156 'consum':195 'cost':45 'crypto':102 'currenc':119 'currency pair rate' 'data':32,97,206 'decim':55 'detail':163 'doc':147 'document':142,172,188 'endpoint':26,83,114,129 'exact':134 'exampl':175 'exchang':30 'experi':199 'extrem':144 'financ':101 'foreign':29 'foreign exchange data' 'forex':2,14,113 'forex API' 'forex-rate' 'format':194 'handl':67 'header':76 'http':184 'indic':181 'infer':100 'input':179 'inspect':201 'json':123 'json-response' 'key':60 'limit':64 'live':131 'lowpaymentfee.com':94 'micropay':6,18 'need':197 'network':42 'no-api-key' 'nzd-usd' 'nzd/usd':1,13,28,118 'offer':92 'openapi':167 'page':151 'pair':120 'paramet':191 'part':85 'payload':176 'payment':37,65,75,135 'per':11,23,69,110 'per-cal':68 'per-request-pricing' 'post':185 'price':107,148 'prompt':158 'protocol':38 'provid':27 'rate':3,15,31,63 'render':153 'request':12,24,44,111,186,189 'request/response':170 'requir':57 'respons':193,202 'return':122,208 'schema':171,180 'scheme':136 'second':140 'serv':116 'servic':105 'settl':77 'span':96 'spars':145 'spec':168 'specif':115 'structur':207 'suit':89 'technic':162 'timeout':141 'understand':204 'unit':50 'usdc':52,79 'usdc-base' 'use':132 'util':104 'via':4,16,71 'wallet':157 'without':187 'x':74 'x-payment':73 'x402':5,17,36,125 'x402-payment'","prices":[{"id":"fab5aa87-dd5b-4eaa-bc4c-cb99b64a0b55","listingId":"10f67b53-8d3b-45a7-a05c-c5d05fb3c87f","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/NZDUSD","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:46:47.903Z"}],"sources":[{"listingId":"10f67b53-8d3b-45a7-a05c-c5d05fb3c87f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/forex/NZDUSD","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:46:47.903Z","lastSeenAt":"2026-04-29T13:34:31.378Z"}],"details":{"listingId":"10f67b53-8d3b-45a7-a05c-c5d05fb3c87f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/forex/NZDUSD \\\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":"Endpoint returns 402 with x402 challenge confirming liveness and USDC payment on Base","source_url":"https://lowpaymentfee.com/api/v1/forex/NZDUSD"},{"claim":"Price is $0.02 per request (maxAmountRequired 20000 base units of USDC, 6 decimals)","source_url":"https://lowpaymentfee.com/api/v1/forex/NZDUSD"},{"claim":"Site advertises $0.02/request, no API keys, no rate limits, instant access, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/forex/NZDUSD"},{"claim":"Docs, pricing, API, and README pages render only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Fetching real-time or recent NZD/USD exchange rate for trading bots","Integrating NZD/USD pricing into financial dashboards","Automated currency conversion calculations involving NZD and USD","Agent-driven forex data retrieval with micropayments"],"bestFor":["Agents or apps needing on-demand NZD/USD rates without signup","Micropayment-native workflows on Base network","Low-volume forex lookups where per-call pricing is preferable to subscriptions"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk data","Users who need comprehensive multi-pair forex feeds in a single call","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:17.598Z"},"updatedAt":"2026-04-29T13:34:31.378Z"}}