{"id":"605808be-60f1-41ae-bdd4-3695288b1174","shortId":"LPreVd","kind":"x402","title":"Historical EUR/GBP forex data via x402 micropayment on Base, $0.02 per request.","tagline":"Historical EUR/GBP forex data via x402 micropayment on Base, $0.02 per request.","description":"This endpoint provides historical exchange rate data for the EUR/GBP currency pair. It is part of the lowpaymentfee.com platform, which offers a suite of pay-per-request APIs spanning finance, analytics, AI/ML, and utilities. The endpoint is accessed via HTTP POST and is gated by the x402 payment protocol, settling in USDC on the Base network.\n\nPricing is $0.02 per request (20,000 base units of USDC with 6 decimals). There are no API keys, no rate limits, and no subscription commitments — each call is paid individually via the X-PAYMENT header. The payment is sent to a specified wallet address and must be completed within a 300-second timeout window.\n\nDocumentation on the site is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available. The endpoint name and path strongly suggest it returns historical forex price data for EUR/GBP, but the exact request parameters (date range, granularity, etc.) and response format are unknown.","tags":[],"capabilities":["forex-history","eur-gbp","x402-payment","usdc-base","pay-per-request","financial-data","exchange-rates"],"categories":["finance","data"],"synonyms":["EUR GBP exchange rate","euro pound history","forex historical data","currency pair history","EURGBP rate","FX data API","foreign exchange rates"],"warnings":["No OpenAPI or schema documentation available — request parameters and response format are unknown","All documentation pages (docs, API, pricing, README) returned only a 'Connect wallet' prompt with no content","The endpoint path suggests forex history but exact capabilities (date ranges, granularity, data fields) cannot be confirmed"],"endpointUrl":"https://lowpaymentfee.com/api/v1/forex/EURGBP/history","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/EURGBP/history","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (returns a valid 402 x402 challenge) and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no request/response schema, no examples, and the docs pages are empty. The actual request parameters and response format are entirely unknown, making this effectively a stub 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'000':88 '20':87 '300':134 '6':94 'EUR GBP exchange rate' 'EURGBP rate' 'FX data API' 'access':63 'addit':162 'address':127 'ai/ml':57 'analyt':56 'api':53,99,148 'avail':177 'base':9,21,80,89 'call':109 'commit':107 'complet':131 'connect':157 'crawl':146 'currenc':35 'currency pair history' 'data':4,16,31,190 'date':198 'decim':95 'detail':164 'doc':147 'document':138 'endpoint':26,61,179 'etc':201 'eur-gbp' 'eur/gbp':2,14,34,192 'euro pound history' 'exact':195 'exampl':175 'exchang':29 'exchange-rates' 'extrem':143 'financ':55 'financial-data' 'foreign exchange rates' 'forex':3,15,188 'forex historical data' 'forex-history' 'format':204 'gate':69 'granular':200 'header':118 'histor':1,13,28,187 'http':65 'individu':112 'key':100 'limit':103 'lowpaymentfee.com':42 'micropay':7,19 'must':129 'name':180 'network':81 'offer':45 'openapi':168 'page':152 'paid':111 'pair':36 'paramet':197 'part':39 'path':182 'pay':50 'pay-per-request':49 'payload':176 'payment':73,117,120 'per':11,23,51,85 'platform':43 'post':66 'price':82,149,189 'prompt':159 'protocol':74 'provid':27 'rang':199 'rate':30,102 'readm':151 'request':12,24,52,86,196 'request/response':171 'respons':203 'return':154,186 'schema':172 'second':135 'sent':122 'settl':75 'site':141 'span':54 'spars':144 'spec':169 'specifi':125 'strong':183 'subscript':106 'suggest':184 'suit':47 'technic':163 'timeout':136 'unit':90 'unknown':206 'usdc':77,92 'usdc-base' 'util':59 'via':5,17,64,113 'wallet':126,158 'window':137 'within':132 'x':116 'x-payment':115 'x402':6,18,72 'x402-payment'","prices":[{"id":"a6606675-51f5-459e-a4c8-5b64a56aa9cc","listingId":"605808be-60f1-41ae-bdd4-3695288b1174","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/EURGBP/history","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:46:37.183Z"}],"sources":[{"listingId":"605808be-60f1-41ae-bdd4-3695288b1174","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/forex/EURGBP/history","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:46:37.183Z","lastSeenAt":"2026-04-28T15:05:57.549Z"}],"details":{"listingId":"605808be-60f1-41ae-bdd4-3695288b1174","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/forex/EURGBP/history \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns HTTP 402 with an x402 challenge advertising USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/forex/EURGBP/history"},{"claim":"Pricing is $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"maxAmountRequired is 20000 base units of USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) which equals $0.02","source_url":"https://lowpaymentfee.com/api/v1/forex/EURGBP/history"},{"claim":"The platform offers APIs across finance, analytics, AI/ML, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving historical EUR/GBP exchange rates for backtesting trading strategies","Feeding forex history into financial models or dashboards","Programmatic access to currency pair data without API key management","Agent-driven forex data retrieval with automatic micropayment settlement"],"bestFor":["Developers needing on-demand forex history without subscriptions","AI agents that can settle x402 payments autonomously on Base","Low-volume or sporadic forex data consumers who prefer pay-per-use"],"notFor":["High-frequency trading requiring sub-second latency and bulk data","Users who need comprehensive multi-pair forex coverage from a single documented API","Anyone requiring detailed API documentation and guaranteed SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:18.191Z"},"updatedAt":"2026-04-28T15:05:57.549Z"}}