{"id":"af33904e-2c7c-4c5f-9f27-b0445bb33005","shortId":"spzQxP","kind":"x402","title":"AUD/JPY forex rate via x402 micropayment on Base, $0.02 per request.","tagline":"AUD/JPY forex rate via x402 micropayment on Base, $0.02 per request.","description":"This endpoint provides AUD/JPY (Australian Dollar to Japanese Yen) foreign exchange rate data, accessible via 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, which spans finance, data analytics, AI/ML, and utility categories — all priced at $0.02 per call. The forex endpoint specifically lives under the finance vertical alongside price feeds, exchange rates, and crypto quotes. Payment is settled on-chain on Base using USDC (contract 0x8335…2913) to the provider's wallet.\n\nDocumentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available. The endpoint is confirmed live (returns a proper 402 x402 challenge on POST), but the actual response format and accepted request parameters are unknown. Users should expect a JSON response (mimeType is application/json) but will need to experiment to determine the exact shape of the data returned.","tags":[],"capabilities":["forex-rate","aud-jpy","x402-payment","usdc-base","micropayment","real-time-data","no-api-key"],"categories":["finance","forex"],"synonyms":["AUD JPY exchange rate","Australian Dollar Japanese Yen","forex API","currency pair rate","FX rate API","AUDJPY price"],"warnings":["No API documentation available — docs, pricing, and README pages all return only a wallet-connect prompt","No request parameters or response schema documented; actual data format is unknown","No OpenAPI or machine-readable spec provided","Provider site offers many diverse API categories (AI, analytics, finance, utils) all at the same price with no visible documentation, which may indicate an early-stage or placeholder service"],"endpointUrl":"https://lowpaymentfee.com/api/v1/forex/AUDJPY","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/AUDJPY","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 x402 challenge, and pricing is clear ($0.02 in USDC on Base). However, there is no OpenAPI spec, no documentation beyond a landing page, no request/response schema, and no examples. This is effectively a stub listing with verified 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'0x8335':120 '2913':121 '402':172 'AUD JPY exchange rate' 'AUDJPY price' 'Australian Dollar Japanese Yen' 'FX rate API' 'accept':183 'access':36 'actual':179 'ai/ml':82 'alongsid':101 'analyt':81 'api':57,73,134 'application/json':196 'aud-jpy' 'aud/jpy':1,12,26 'australian':27 'avail':163 'base':8,19,44,116 'broader':70 'call':91 'categori':85 'chain':114 'challeng':174 'coin':54 'confirm':167 'connect':143 'contract':119 'cost':48 'crawl':132 'crypto':107 'currency pair rate' 'data':35,80,209 'detail':150 'determin':203 'doc':133 'document':127 'dollar':28 'endpoint':24,65,94,165 'exact':205 'exampl':161 'exchang':33,104 'expect':190 'experi':201 'extrem':129 'feed':103 'financ':79,99 'foreign':32 'forex':2,13,93 'forex API' 'forex-rate' 'format':181 'japanes':30 'json':192 'key':58 'limit':60 'live':96,168 'lowpaymentfee.com':76 'micropay':6,17 'micropayment' 'mimetyp':194 'need':199 'network':45 'no-api-key' 'offer':74 'on-chain':112 'openapi':154 'page':138 'paid':50 'paramet':185 'part':67 'payload':162 'payment':40,109 'per':10,21,90 'post':176 'price':87,102,135 'prompt':145 'proper':171 'protocol':41 'provid':25,124 'quot':108 'rate':3,14,34,59,105 'readm':137 'real-time-data' 'request':11,22,47,184 'request/response':157 'requir':63 'respons':180,193 'return':140,169,210 'schema':158 'settl':111 'shape':206 'span':78 'spars':130 'spec':155 'specif':95 'subscript':62 'suit':71 'technic':149 'unknown':187 'usd':53 'usdc':52,118 'usdc-base' 'use':117 'user':188 'util':84 'vertic':100 'via':4,15,37 'wallet':126,144 'x402':5,16,39,173 'x402-payment' 'yen':31","prices":[{"id":"348827bc-e08f-4240-8d75-0d24b6508f51","listingId":"af33904e-2c7c-4c5f-9f27-b0445bb33005","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/AUDJPY","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:46:32.412Z"}],"sources":[{"listingId":"af33904e-2c7c-4c5f-9f27-b0445bb33005","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/forex/AUDJPY","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:46:32.412Z","lastSeenAt":"2026-04-29T15:05:03.169Z"}],"details":{"listingId":"af33904e-2c7c-4c5f-9f27-b0445bb33005","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/forex/AUDJPY \\\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":"Endpoint returns a 402 x402 challenge with USDC on Base, maxAmountRequired 20000 base units ($0.02)","source_url":"https://lowpaymentfee.com/api/v1/forex/AUDJPY"},{"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 contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/forex/AUDJPY"}],"useCases":["Fetching the current AUD/JPY exchange rate for trading bots or dashboards","Incorporating live forex data into financial applications without API key management","Programmatic access to currency pair pricing with per-request micropayments"],"bestFor":["Agents or bots needing on-demand forex rates without subscriptions","Developers who want keyless, pay-per-use currency data","x402-native applications settling payments on Base"],"notFor":["High-frequency trading requiring sub-millisecond latency (on-chain payment adds overhead)","Users needing historical forex time-series data (no evidence this is supported)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:18.309Z"},"updatedAt":"2026-04-29T15:05:03.169Z"}}