{"id":"0d7737ea-adcd-47af-baac-0d981ab04d70","shortId":"mu9p43","kind":"x402","title":"GBP/AUD forex rate via x402 micropayment on Base, $0.02 per request.","tagline":"GBP/AUD forex rate via x402 micropayment on Base, $0.02 per request.","description":"This endpoint provides GBP/AUD foreign exchange rate data, accessible through the x402 payment protocol. It is part of a broader suite of APIs offered by lowpaymentfee.com covering finance, analytics, AI/ML, crypto, and utility services. Each request is paid individually at $0.02 (20,000 base units of USDC on the Base network, where USDC has 6 decimals).\n\nThe endpoint accepts POST requests and returns JSON. No API keys or account registration are required — payment is handled inline via the x402 `X-PAYMENT` header. The x402 challenge confirms the endpoint is live, advertising version 1 of the protocol with an \"exact\" payment scheme settling to a specific address on Base.\n\nDocumentation beyond the landing page is extremely sparse. The /docs, /api, /pricing, and /README pages all returned only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The exact fields returned by the forex endpoint (e.g., bid, ask, mid, timestamp) are unknown and must be discovered by making a paid request.","tags":[],"capabilities":["forex-rate","gbp-aud","x402-payment","usdc-base","per-request-pricing","no-api-key","json-response"],"categories":["finance","forex"],"synonyms":["GBP AUD exchange rate","pound to australian dollar","forex API","currency pair rate","FX rate endpoint","GBP/AUD price","foreign exchange data"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All documentation pages (/docs, /api, /pricing, /README) return only a 'Connect wallet' prompt with no content","Request body schema and response fields for the forex endpoint are undocumented","The broader lowpaymentfee.com platform lists many endpoint categories but provides no detailed docs for any of them"],"endpointUrl":"https://lowpaymentfee.com/api/v1/forex/GBPAUD","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","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI spec, no request/response schema, and no examples. The actual data returned by the forex endpoint is entirely unknown, making this effectively a stub 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'/docs':141 '/pricing':143 '/readme':145 '0.02':9,20,63 '000':65 '1':116 '20':64 '6':77 'FX rate endpoint' 'GBP AUD exchange rate' 'GBP/AUD price' 'accept':81 'access':31 'account':91 'address':129 'advertis':114 'ai/ml':52 'analyt':51 'api':45,88 'ask':182 'avail':171 'base':8,19,66,72,131 'beyond':133 'bid':181 'broader':42 'challeng':108 'confirm':109 'connect':151 'content':157 'cover':49 'crypto':53 'currency pair rate' 'data':30 'decim':78 'discov':190 'document':132,166 'e.g':180 'endpoint':24,80,111,179 'exact':122,173 'exampl':169 'exchang':28 'extrem':138 'field':174 'financ':50 'foreign':27 'foreign exchange data' 'forex':2,13,178 'forex API' 'forex-rate' 'gbp-aud' 'gbp/aud':1,12,26 'handl':97 'header':105 'individu':61 'inlin':98 'json':86 'json-response' 'key':89 'land':135 'live':113 'lowpaymentfee.com':48 'make':192 'micropay':6,17 'mid':183 'must':188 'network':73 'no-api-key' 'offer':46 'openapi':161 'page':136,146 'paid':60,194 'part':39 'payload':170 'payment':35,95,104,123 'per':10,21 'per-request-pricing' 'post':82 'pound to australian dollar' 'prompt':153 'protocol':36,119 'provid':25 'rate':3,14,29 'registr':92 'request':11,22,58,83,195 'request/response':164 'requir':94 'return':85,148,175 'schema':165 'scheme':124 'servic':56 'settl':125 'spars':139 'spec':162 'specif':128 'substant':156 'suit':43 'timestamp':184 'unit':67 'unknown':186 'usdc':69,75 'usdc-base' 'util':55 'version':115 'via':4,15,99 'wallet':152 'x':103 'x-payment':102 'x402':5,16,34,101,107 'x402-payment'","prices":[{"id":"6d39dde2-b35b-4fd5-9581-1ec138f31a30","listingId":"0d7737ea-adcd-47af-baac-0d981ab04d70","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","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:46:40.156Z"}],"sources":[{"listingId":"0d7737ea-adcd-47af-baac-0d981ab04d70","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/forex/GBPAUD","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:46:40.156Z","lastSeenAt":"2026-04-29T14:34:10.154Z"}],"details":{"listingId":"0d7737ea-adcd-47af-baac-0d981ab04d70","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/forex/GBPAUD \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\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","source_url":"https://lowpaymentfee.com/api/v1/forex/GBPAUD"},{"claim":"Site advertises $0.02 per request pricing 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/GBPAUD"},{"claim":"Documentation pages /docs, /api, /pricing, /README contain only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Fetching real-time or recent GBP/AUD exchange rates for trading applications","Integrating forex data into automated financial agents without API key management","Building currency conversion tools that pay per request via crypto micropayments"],"bestFor":["Agents or bots needing on-demand GBP/AUD rates without subscription commitments","Developers wanting keyless, pay-per-call forex data settled on Base","Low-volume or sporadic forex data consumers who prefer micropayments over monthly plans"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk rate plans","Users who need comprehensive multi-pair forex feeds in a single call","Anyone without a Base-compatible USDC wallet for x402 payments"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:17.971Z"},"updatedAt":"2026-04-29T14:34:10.154Z"}}