{"id":"5e4bc251-9ae8-41a5-abf5-d6b905999cd3","shortId":"gSgCeS","kind":"x402","title":"GBP/AUD forex exchange rate via x402 micropayment on Base for $0.02 per request.","tagline":"GBP/AUD forex exchange rate via x402 micropayment on Base for $0.02 per request.","description":"This endpoint returns the current GBP/AUD foreign exchange rate, accessible through the x402 payment protocol on the Base network. It is part of a broader suite of APIs offered by lowpaymentfee.com spanning finance, analytics, AI, and utility services, all priced at $0.02 per request paid in USDC.\n\nThe endpoint accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers include an X-PAYMENT header with a signed USDC payment on Base (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02. There are no API keys, no rate limits, and no signup required — access is granted per-request upon valid payment.\n\nDocumentation beyond the landing page is extremely sparse. The /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no example request/response, and no description of the response schema. The endpoint is confirmed live (returns 402 challenge), but the actual response format for the forex rate must be inferred.","tags":[],"capabilities":["forex-rate","gbp-aud","x402-payment","usdc-base","per-request-pricing","no-api-key","real-time-data"],"categories":["finance","forex"],"synonyms":["GBP AUD exchange rate","pound to australian dollar","forex rate API","currency conversion","FX rate","GBP/AUD price","foreign exchange rate"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All doc pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no content","The specific /forex/GBPAUD/rate endpoint is not listed on the landing page; only /finance/rates is shown, so this may be an undocumented or auxiliary route","No information on data source, update frequency, or accuracy of the forex rate"],"endpointUrl":"https://lowpaymentfee.com/api/v1/forex/GBPAUD/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/GBPAUD/rate","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 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and all documentation pages are empty beyond a wallet-connect prompt. The actual forex data quality and response format are 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'/docs':152 '/pricing':153 '/readme':156 '0.02':11,24,68,121 '000':112 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':105 '20':111 '402':191 '6':117 'FX rate' 'GBP AUD exchange rate' 'GBP/AUD price' 'accept':76 'access':36,134 'actual':195 'addit':167 'ai':61 'amount':108 'analyt':60 'api':54,125 'asset':104 'base':9,22,44,103,113 'beyond':144 'broader':51 'caller':90 'challeng':192 'confirm':188 'connect':162 'currency conversion' 'current':31 'decim':118 'descript':180 'detail':169 'document':143 'endpoint':28,75,186 'equal':120 'exampl':176 'exchang':3,16,34 'extrem':149 'financ':59 'foreign':33 'foreign exchange rate' 'forex':2,15,200 'forex rate API' 'forex-rate' 'format':197 'gbp-aud' 'gbp/aud':1,14,32 'grant':136 'handl':84 'header':96 'includ':91 'infer':204 'inlin':85 'json':81 'key':126 'land':146 'limit':129 'live':189 'lowpaymentfee.com':57 'max':107 'micropay':7,20 'must':202 'network':45 'no-api-key' 'offer':55 'openapi':173 'page':147,157 'paid':71 'part':48 'payment':40,82,95,101,142 'per':12,25,69,138 'per-request':137 'per-request-pricing' 'post':77 'pound to australian dollar' 'price':66 'prompt':164 'protocol':41,89 'rate':4,17,35,128,201 'real-time-data' 'render':159 'request':13,26,70,78,139 'request/response':177 'requir':109,133 'respons':183,196 'return':29,80,190 'schema':184 'servic':64 'sign':99 'signup':132 'span':58 'spars':150 'spec':174 'suit':52 'technic':168 'unit':114 'upon':140 'usdc':73,100,116 'usdc-base' 'util':63 'valid':141 'via':5,18,86 'wallet':163 'x':94 'x-payment':93 'x402':6,19,39,88 'x402-payment'","prices":[{"id":"b870e385-45a1-4f30-8298-15e2f0c8da2b","listingId":"5e4bc251-9ae8-41a5-abf5-d6b905999cd3","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/GBPAUD/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":"2026-04-18T18:46:39.007Z"}],"sources":[{"listingId":"5e4bc251-9ae8-41a5-abf5-d6b905999cd3","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/forex/GBPAUD/rate","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:46:39.007Z","lastSeenAt":"2026-04-29T14:34:10.086Z"}],"details":{"listingId":"5e4bc251-9ae8-41a5-abf5-d6b905999cd3","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/forex/GBPAUD/rate \\\n  -H \"X-PAYMENT: <x402-signed-payment-header>\" \\\n  -H \"Content-Type: application/json\"","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","source_url":"https://lowpaymentfee.com/api/v1/forex/GBPAUD/rate"},{"claim":"All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/forex/GBPAUD/rate"},{"claim":"Documentation pages (/docs, /pricing, /api, /README) contain only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Fetching the current GBP/AUD exchange rate for trading or portfolio applications","Integrating live forex data into financial dashboards without API key management","Agent-driven currency conversion workflows that pay per call via x402"],"bestFor":["Developers needing simple pay-per-call forex data without subscriptions","AI agents that can settle x402 payments on Base","Low-volume or sporadic forex rate lookups where $0.02/request is cost-effective"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk rate feeds","Users who need historical forex data or OHLC candles (not indicated as available)","Applications that cannot settle USDC payments on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:18.078Z"},"updatedAt":"2026-04-29T14:34:10.086Z"}}