NZD/JPY forex rate via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint provides NZD/JPY (New Zealand Dollar to Japanese Yen) forex data, accessible through the x402 payment protocol. It is part of a broader suite of finance, data, AI, and utility APIs hosted at lowpaymentfee.com, all priced at $0.02 per request and settled in USDC on the Base network.
The endpoint accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers include an X-PAYMENT header with a signed USDC payment of up to 0.02 USDC (20,000 base units at 6 decimals) per call. There are no API keys, no rate limits, and no subscription commitments — each request is independently paid for on-chain.
Documentation beyond the landing page is extremely sparse. The /docs, /pricing, /api, and /README pages all resolve to a minimal "Connect wallet" stub with no additional technical detail. There is no OpenAPI spec, no example request/response, and no description of the response schema. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data source, update frequency, and response format for the NZD/JPY pair are unknown.
Capabilities
Use cases
- —Fetching the current or recent NZD/JPY exchange rate for trading bots or dashboards
- —Integrating forex data into an AI agent workflow with per-call micropayments
- —Building currency conversion tools that need JPY cross rates
Fit
Best for
- —Agents or bots that need on-demand forex data without managing API keys
- —Low-volume or sporadic forex lookups where per-call pricing is economical
- —x402-native applications settling on Base
Not for
- —High-frequency trading requiring sub-second tick data with guaranteed SLAs
- —Users who need comprehensive multi-pair forex feeds in a single call
- —Anyone requiring detailed historical OHLCV forex data (no evidence this is supported)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/forex/NZDJPY \
-H "X-PAYMENT: <x402-signed-payment-header>" \
-H "Content-Type: application/json"Endpoint
Quality
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 documentation, no example requests or responses, and no description of what fields the forex endpoint actually returns. This is effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available — response format is unknown
- —All documentation pages (/docs, /pricing, /api, /README) return only a 'Connect wallet' stub with no content
- —Data source, update frequency, and accuracy of forex rates are not disclosed
- —The specific endpoint /api/v1/forex/NZDJPY is not listed on the landing page's API catalog, though similar finance endpoints are
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/forex/NZDJPY
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and settlement on Basehttps://lowpaymentfee.com
- —The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/forex/NZDJPY