{"id":"80b94e42-a160-426f-8e2e-c190f9af0d02","shortId":"R6DzpF","kind":"x402","title":"Historical NZD/JPY forex data via x402 micropayment on Base, $0.02 per request.","tagline":"Historical NZD/JPY forex data via x402 micropayment on Base, $0.02 per request.","description":"This endpoint provides historical forex data for the NZD/JPY currency pair. It is part of the lowpaymentfee.com platform, which offers a range of data, AI, finance, and utility APIs all gated behind x402 micropayments on the Base network using USDC.\n\nThe endpoint accepts POST requests and returns JSON. Payment is handled via the x402 protocol: callers include an X-PAYMENT header with a signed USDC payment on Base. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. There are no API keys, no rate limits, and no subscription commitments — each request is independently paid.\n\nThe broader lowpaymentfee.com platform lists endpoints across categories including analytics, AI/ML (sentiment analysis, summarization, classification, embeddings), finance (price feeds, exchange rates, crypto quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation), all at the same $0.02/request price point. Documentation beyond the landing page is sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional technical detail. No OpenAPI schema or request/response examples are provided, so the exact request body format and response structure for this forex history endpoint must be discovered experimentally.","tags":[],"capabilities":["forex-history","nzd-jpy","x402-payment","usdc-base","micropayment","per-request-pricing","json-api"],"categories":["finance","data"],"synonyms":["NZD JPY historical rates","New Zealand Dollar Japanese Yen history","forex historical data","currency pair history","FX rate history","NZDJPY exchange rate"],"warnings":["No documentation available — docs, pricing, and README pages all show only 'Connect wallet' with no technical content.","No request or response schema provided; callers must discover the API contract experimentally.","The specific forex history endpoint is not listed on the landing page's available APIs section, raising questions about its discoverability and support status.","No OpenAPI or ai-plugin manifest found."],"endpointUrl":"https://lowpaymentfee.com/api/v1/forex/NZDJPY/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/NZDJPY/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 schema, no documentation of request parameters or response format, and no examples. The docs/pricing/README pages are all blank beyond a wallet-connect prompt. The listing is effectively a stub with confirmed 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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/NZDJPY/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":"2026-04-18T18:46:46.730Z"}],"sources":[{"listingId":"80b94e42-a160-426f-8e2e-c190f9af0d02","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/forex/NZDJPY/history","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:46:46.730Z","lastSeenAt":"2026-04-28T15:06:00.089Z"}],"details":{"listingId":"80b94e42-a160-426f-8e2e-c190f9af0d02","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/forex/NZDJPY/history \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-signed-payment>\" \\\n  -d 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movements","Feeding forex history into financial models or risk calculations","Agent-driven forex analysis workflows that pay per query"],"bestFor":["Developers needing on-demand forex history without API key management","AI agents that can pay per request via x402 on Base","Low-volume or sporadic forex data needs where subscriptions are wasteful"],"notFor":["High-frequency trading requiring sub-second latency and bulk historical downloads","Users who need comprehensive multi-pair forex data in a single call","Anyone unable to transact in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:17.692Z"},"updatedAt":"2026-04-28T15:06:00.089Z"}}