{"id":"cc81bd12-358c-4f10-8d08-67ccf147b893","shortId":"Z94H4Z","kind":"x402","title":"EUR/JPY forex exchange rate via x402 micropayment on Base for $0.02 per request.","tagline":"EUR/JPY forex exchange rate via x402 micropayment on Base for $0.02 per request.","description":"This endpoint provides the current EUR/JPY foreign exchange rate, accessible through the x402 payment protocol on the Base network. Each request costs $0.02 (20,000 base units of USDC with 6 decimals) and requires no API keys, subscriptions, or rate limits — just an x402-compatible payment header.\n\nThe endpoint is part of a broader suite of APIs offered by lowpaymentfee.com, which spans data analytics, AI/ML inference, finance/crypto market data, and utility services, all priced uniformly at $0.02 per call. Payment settles in USDC on the Base L2 network using the \"exact\" x402 scheme. The endpoint accepts POST requests and returns JSON.\n\nDocumentation on the site is extremely sparse — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available from the crawled material. The endpoint is confirmed live (returns a proper 402 challenge), but the exact shape of the response body and any required request parameters are unknown.","tags":[],"capabilities":["forex-rate","eur-jpy","x402-payment","usdc-base","micropayment","real-time-fx","per-request-pricing"],"categories":["finance","forex"],"synonyms":["EUR/JPY exchange rate","euro yen rate","forex rate API","currency exchange rate","FX rate endpoint","EURJPY spot rate"],"warnings":["No OpenAPI or schema documentation available — request and response formats are unknown","All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no technical content","The specific forex data source and update frequency are not disclosed","This endpoint is part of a site offering many diverse APIs; quality and reliability of the forex data cannot be verified from available material"],"endpointUrl":"https://lowpaymentfee.com/api/v1/forex/EURJPY/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/EURJPY/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 with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no usage examples, and the docs pages are empty. The response format and any required request body fields are entirely 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