{"id":"969c02c7-b019-46e5-9bb3-fa9ddbb1f043","shortId":"xpgGAd","kind":"x402","title":"NZD/CHF forex rate via x402 micropayment on Base for $0.02 per request.","tagline":"NZD/CHF forex rate via x402 micropayment on Base for $0.02 per request.","description":"This endpoint provides NZD/CHF (New Zealand Dollar to Swiss Franc) foreign exchange rate data, accessible through the x402 payment protocol on the Base network. Each request costs $0.02, paid in USDC (USD Coin) with no API keys, rate limits, or subscriptions required.\n\nThe endpoint is part of a broader suite of APIs offered at lowpaymentfee.com spanning finance, analytics, AI/ML, crypto, and utility categories — all priced at $0.02 per call. The forex endpoint specifically serves the NZD/CHF currency pair and returns JSON. Payment is handled inline via the x402 protocol: callers include an X-PAYMENT header with a signed USDC payment on Base, and the server fulfills the request upon verification.\n\nNo OpenAPI schema or detailed documentation was found beyond the landing page. The endpoint is confirmed live (returns a proper 402 challenge). The exact response format is undocumented, so callers should expect a standard JSON object containing exchange rate information, but the precise fields are unknown.","tags":[],"capabilities":["forex-rate","nzd-chf","x402-payment","usdc-base","per-request-pricing","no-api-key","json-response"],"categories":["finance","forex"],"synonyms":["NZD CHF exchange rate","New Zealand Dollar Swiss Franc","forex API","currency conversion","FX rate","NZD to CHF","foreign exchange rate"],"warnings":["No OpenAPI or response schema available — response format is unknown","Documentation pages (/docs, /pricing, /README) contain no useful content","Exact data source, update frequency, and accuracy of forex rates are undocumented","This is a single currency pair endpoint; no information on whether it returns live, delayed, or indicative rates"],"endpointUrl":"https://lowpaymentfee.com/api/v1/forex/NZDCHF","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/NZDCHF","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.400","qualityRationale":"The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 in USDC on Base). However, there is no OpenAPI schema, no documented request/response format, and the docs/pricing/README pages all returned only a 'Connect wallet' stub with no useful content. The response structure must be 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'402':156 'FX rate' 'NZD CHF exchange rate' 'NZD to CHF' 'New Zealand Dollar Swiss Franc' 'access':39 'ai/ml':83 'analyt':82 'api':60,76 'base':8,20,47,127 'beyond':144 'broader':73 'call':93 'caller':114,165 'categori':87 'challeng':157 'coin':57 'confirm':151 'contain':172 'cost':51 'crypto':84 'currenc':101 'currency conversion' 'data':38 'detail':140 'document':141 'dollar':31 'endpoint':26,68,96,149 'exact':159 'exchang':36,173 'expect':167 'field':179 'financ':81 'foreign':35 'foreign exchange rate' 'forex':2,14,95 'forex API' 'forex-rate' 'format':161 'found':143 'franc':34 'fulfil':131 'handl':108 'header':120 'includ':115 'inform':175 'inlin':109 'json':105,170 'json-response' 'key':61 'land':146 'limit':63 'live':152 'lowpaymentfee.com':79 'micropay':6,18 'network':48 'new':29 'no-api-key' 'nzd-chf' 'nzd/chf':1,13,28,100 'object':171 'offer':77 'openapi':137 'page':147 'paid':53 'pair':102 'part':70 'payment':43,106,119,125 'per':11,23,92 'per-request-pricing' 'precis':178 'price':89 'proper':155 'protocol':44,113 'provid':27 'rate':3,15,37,62,174 'request':12,24,50,133 'requir':66 'respons':160 'return':104,153 'schema':138 'serv':98 'server':130 'sign':123 'span':80 'specif':97 'standard':169 'subscript':65 'suit':74 'swiss':33 'undocu':163 'unknown':181 'upon':134 'usd':56 'usdc':55,124 'usdc-base' 'util':86 'verif':135 'via':4,16,110 'x':118 'x-payment':117 'x402':5,17,42,112 'x402-payment' 'zealand':30","prices":[{"id":"745214ed-9b77-46a6-bc8a-8285b0a8ce42","listingId":"969c02c7-b019-46e5-9bb3-fa9ddbb1f043","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/NZDCHF","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:46:50.898Z"}],"sources":[{"listingId":"969c02c7-b019-46e5-9bb3-fa9ddbb1f043","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/forex/NZDCHF","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:46:50.898Z","lastSeenAt":"2026-04-29T13:05:03.240Z"}],"details":{"listingId":"969c02c7-b019-46e5-9bb3-fa9ddbb1f043","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/forex/NZDCHF \\\n  -H \"X-PAYMENT: <x402-signed-payment>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 challenge advertising USDC on Base, maxAmountRequired 20000 (= $0.02)","source_url":"https://lowpaymentfee.com/api/v1/forex/NZDCHF"},{"claim":"All APIs priced at $0.02 per request with no API keys, no rate limits, 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/NZDCHF"}],"useCases":["Fetching real-time or recent NZD/CHF exchange rates for trading applications","Incorporating NZD/CHF pricing into financial dashboards or portfolio trackers","Automated currency conversion calculations involving NZD and CHF","Agent-driven forex data retrieval with per-call micropayments"],"bestFor":["Developers needing on-demand NZD/CHF rates without subscription commitments","AI agents that need programmatic forex data access via x402","Low-volume or sporadic forex data consumers who prefer pay-per-use"],"notFor":["High-frequency trading requiring sub-millisecond latency or bulk historical data","Users who need a wide range of currency pairs from a single endpoint (this serves only NZD/CHF)","Applications requiring detailed OHLCV candlestick or tick-level forex data"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:17.445Z"},"updatedAt":"2026-04-29T13:05:03.240Z"}}