NZD/JPY forex exchange rate via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint provides the current NZD/JPY (New Zealand Dollar to Japanese Yen) foreign exchange rate. It is part of a broader suite of APIs hosted at lowpaymentfee.com that span finance, analytics, AI, and utility services. All endpoints on the platform use the x402 payment protocol, settling in USDC on the Base network.
The endpoint accepts POST requests and returns JSON. Payment is handled inline via the X-PAYMENT header using the x402 exact scheme — no API keys, accounts, or rate limits are required. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. The payment is sent to the provider's address on Base (0x1A2B…85F3) using the canonical USDC contract (0x8335…2913).
Documentation on the site is minimal — 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, and no description of the response schema. The endpoint is confirmed live (returns a proper 402 challenge), but the exact shape of the forex rate response must be inferred from the endpoint path and the platform's general description of "Exchange Rates" under its Finance & Web3 category.
Capabilities
Use cases
- —Fetching the current NZD/JPY exchange rate for trading bots or dashboards
- —Powering currency conversion features in fintech applications
- —Providing real-time forex data to AI agents making financial decisions
- —Embedding live FX rates in reporting or analytics pipelines
Fit
Best for
- —Agents or apps needing on-demand NZD/JPY rates without API key management
- —Low-volume or sporadic forex lookups where per-call pricing is economical
- —x402-native workflows that settle micropayments in USDC on Base
Not for
- —High-frequency trading requiring sub-millisecond latency or bulk historical data
- —Users who need comprehensive multi-pair forex coverage from a single well-documented API
- —Applications that cannot handle x402 payment negotiation
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/forex/NZDJPY/rate \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"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 documented request/response schema, no example payloads, and the docs pages are empty. The listing is functional but largely a stub.
Warnings
- —No OpenAPI or schema documentation available — response format is unknown
- —All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no technical content
- —No example responses available; the exact fields returned for the forex rate are unverified
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/forex/NZDJPY/rate
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/forex/NZDJPY/rate