{"id":"5d1b1947-e022-40fd-8054-13812be60fa3","shortId":"JvqGG8","kind":"x402","title":"CAD/JPY forex exchange rate via x402 micropayment on Base for $0.02 per request.","tagline":"CAD/JPY forex exchange rate via x402 micropayment on Base for $0.02 per request.","description":"This endpoint provides the current CAD/JPY (Canadian Dollar to Japanese Yen) foreign exchange rate. It is part of a broader suite of APIs offered by lowpaymentfee.com, which spans finance, analytics, AI/ML, and utility services. All endpoints on the platform use the x402 payment protocol, settling in USDC on the Base network.\n\nThe specific endpoint at `/api/v1/forex/CADJPY/rate` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335…on Base), which equals $0.02 per request (USDC uses 6 decimals). No API keys are required; payment is handled inline via the X-PAYMENT header. The provider advertises no rate limits and instant access.\n\nDocumentation beyond the landing page is 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 payloads, and no description of the response schema. The endpoint is confirmed live (returns HTTP 402 with a valid x402 challenge). The forex pair CADJPY is not listed on the landing page's catalog (which shows generic finance/rates endpoints), so this may be an unlisted or dynamically-generated route.","tags":[],"capabilities":["forex-rate","cad-jpy","x402-payment","usdc-settlement","base-network","real-time-data","per-request-pricing"],"categories":["finance","forex"],"synonyms":["CAD JPY exchange rate","Canadian Dollar Japanese Yen","forex rate API","currency conversion","FX rate","CADJPY spot rate","currency exchange rate"],"warnings":["No OpenAPI or schema documentation available for this endpoint","All documentation pages (/docs, /pricing, /api, /README) render only a wallet-connect prompt with no content","The /api/v1/forex/CADJPY/rate path is not listed in the provider's public API catalog — it may be dynamically generated or unlisted","Response format and fields are completely unknown; no example responses available"],"endpointUrl":"https://lowpaymentfee.com/api/v1/forex/CADJPY/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/CADJPY/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 x402 challenge and clear pricing ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and the docs pages are empty. The specific CADJPY route is not even listed on the provider's landing page catalog, raising questions about its provenance and 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<x402_payment_token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The x402 challenge advertises maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/forex/CADJPY/rate"},{"claim":"USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/forex/CADJPY/rate"},{"claim":"Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The provider offers finance, analytics, AI/ML, and utility API categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching the current CAD/JPY exchange rate for trading bots or portfolio dashboards","Programmatic currency conversion in financial applications","Agents needing real-time forex data without API key provisioning","Micropayment-gated access to FX data for pay-per-use workflows","Cross-currency pricing calculations in e-commerce or invoicing"],"bestFor":["AI agents or bots that need on-demand forex rates without signup","Developers prototyping financial apps who want instant, keyless API access","Low-volume or sporadic forex data consumers who prefer per-call pricing"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk rate feeds","Users who need historical forex time-series data (no evidence this endpoint provides it)","Applications requiring authenticated sessions or guaranteed SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:17.895Z"},"updatedAt":"2026-04-29T13:34:31.149Z"}}