{"id":"66c1c6d9-14f6-4fc9-861f-53ec1f3e8df5","shortId":"RRdNqP","kind":"x402","title":"NZD/USD forex exchange rate via x402 micropayment on Base for $0.02 per request.","tagline":"NZD/USD forex exchange rate via x402 micropayment on Base for $0.02 per request.","description":"This endpoint provides the NZD/USD foreign exchange rate through a pay-per-call x402 protocol. It is hosted on lowpaymentfee.com, a platform offering a variety of data, AI, finance, and utility APIs all priced at $0.02 per request, settled in USDC on the Base network.\n\nThe endpoint accepts POST requests and returns JSON. Payment is handled via the x402 protocol: callers include an X-PAYMENT header with a signed payment of up to 20,000 base units of USDC (i.e., $0.02, since USDC uses 6 decimals) to the provider's address on Base. No API keys or accounts are required — access is granted per-request upon valid payment. The provider advertises no rate limits and instant access.\n\nThe specific endpoint `/api/v1/forex/NZDUSD/rate` is part of a broader Finance & Web3 category on the platform, which also includes price feeds, general exchange rates, token quotes, and gas estimates. Documentation on the site is minimal — the docs, API, pricing, and README pages all resolve to a wallet-connect prompt with no additional technical detail. The exact response schema for this forex endpoint is not documented, so the output format is inferred to be a JSON object containing the current NZD/USD rate.","tags":[],"capabilities":["forex-rate","nzd-usd","x402-payment","usdc-base","pay-per-request","real-time-data","no-api-key"],"categories":["finance","forex"],"synonyms":["NZD USD exchange rate","New Zealand dollar rate","forex rate API","currency conversion NZD","FX rate endpoint","NZDUSD price"],"warnings":["No API documentation available — docs, pricing, and README pages all show only a wallet-connect prompt with no technical detail.","Response schema for the forex endpoint is not documented; the example response is inferred and may not match actual output.","The specific /api/v1/forex/NZDUSD/rate path is not listed on the provider's homepage; it may be an unlisted or experimental endpoint."],"endpointUrl":"https://lowpaymentfee.com/api/v1/forex/NZDUSD/rate","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/rate","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.400","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented response format, and all docs/pricing/README pages on the site resolve to a bare wallet-connect prompt with no useful content. The response example is entirely 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'0.02':11,24,63,109 '000':103 '20':102 '6':113 'FX rate endpoint' 'NZD USD exchange rate' 'NZDUSD price' 'New Zealand dollar rate' 'accept':75 'access':129,146 'account':126 'addit':198 'address':119 'advertis':140 'ai':55 'also':163 'api':59,123,183 'base':9,22,71,104,121 'broader':155 'call':40 'caller':88 'categori':158 'connect':194 'contain':223 'currency conversion NZD' 'current':225 'data':54 'decim':114 'detail':200 'doc':182 'document':175,211 'endpoint':28,74,149,208 'estim':174 'exact':202 'exchang':3,16,33,168 'feed':166 'financ':56,156 'foreign':32 'forex':2,15,207 'forex rate API' 'forex-rate' 'format':215 'gas':173 'general':167 'grant':131 'handl':83 'header':94 'host':45 'i.e':108 'includ':89,164 'infer':217 'instant':145 'json':80,221 'key':124 'limit':143 'lowpaymentfee.com':47 'micropay':7,20 'minim':180 'network':72 'no-api-key' 'nzd-usd' 'nzd/usd':1,14,31,226 'object':222 'offer':50 'output':214 'page':187 'part':152 'pay':38 'pay-per-cal':37 'pay-per-request' 'payment':81,93,98,137 'per':12,25,39,64,133 'per-request':132 'platform':49,161 'post':76 'price':61,165,184 'prompt':195 'protocol':42,87 'provid':29,117,139 'quot':171 'rate':4,17,34,142,169,227 'readm':186 'real-time-data' 'request':13,26,65,77,134 'requir':128 'resolv':189 'respons':203 'return':79 'schema':204 'settl':66 'sign':97 'sinc':110 'site':178 'specif':148 'technic':199 'token':170 'unit':105 'upon':135 'usdc':68,107,111 'usdc-base' 'use':112 'util':58 'valid':136 'varieti':52 'via':5,18,84 'wallet':193 'wallet-connect':192 'web3':157 'x':92 'x-payment':91 'x402':6,19,41,86 'x402-payment'","prices":[{"id":"67164084-12d8-4902-8cd9-adc27b3371fa","listingId":"66c1c6d9-14f6-4fc9-861f-53ec1f3e8df5","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/rate","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:46:47.912Z"}],"sources":[{"listingId":"66c1c6d9-14f6-4fc9-861f-53ec1f3e8df5","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/forex/NZDUSD/rate","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:46:47.912Z","lastSeenAt":"2026-04-29T13:05:03.073Z"}],"details":{"listingId":"66c1c6d9-14f6-4fc9-861f-53ec1f3e8df5","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/forex/NZDUSD/rate \\\n  -H \"X-PAYMENT: <x402-signed-payment>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":{"pair":"NZD/USD","rate":0.6123,"timestamp":"2025-01-15T12:00:00Z"},"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns HTTP 402 with an x402 challenge requiring up to 20,000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/forex/NZDUSD/rate"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/forex/NZDUSD/rate"},{"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":"Finance & Web3 category includes price feeds, exchange rates, token quotes, and gas estimates","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching the current NZD/USD exchange rate for trading or analytics applications","Integrating real-time forex data into financial dashboards without API key management","Agent-driven currency lookups paid per-call with USDC on Base"],"bestFor":["Developers needing on-demand NZD/USD rates without subscription commitments","AI agents that can autonomously pay for forex data via x402","Low-volume or sporadic forex data consumers who prefer pay-per-use"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk rate feeds","Users who need historical forex data or OHLCV candles (not indicated as available)","Anyone unable to pay with USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:17.656Z"},"updatedAt":"2026-04-29T13:05:03.073Z"}}