NZD/USD forex exchange rate via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint provides the NZD/USD foreign exchange rate through a pay-per-call x402 protocol. It is hosted on lowpaymentfee.com, a platform offering a variety of data, AI, finance, and utility APIs all priced at $0.02 per request, settled in USDC on the Base network.
The endpoint accepts POST requests and returns JSON. Payment is handled via the x402 protocol: callers include an X-PAYMENT header with a signed payment of up to 20,000 base units of USDC (i.e., $0.02, since USDC uses 6 decimals) to the provider's address on Base. No API keys or accounts are required — access is granted per-request upon valid payment. The provider advertises no rate limits and instant access.
The specific endpoint `/api/v1/forex/NZDUSD/rate` is part of a broader Finance & Web3 category on the platform, which also includes price feeds, general exchange rates, token quotes, and gas estimates. Documentation on the site is minimal — the docs, API, pricing, and README pages all resolve to a wallet-connect prompt with no additional technical detail. The exact response schema for this forex endpoint is not documented, so the output format is inferred to be a JSON object containing the current NZD/USD rate.
Capabilities
Use cases
- —Fetching the current NZD/USD exchange rate for trading or analytics applications
- —Integrating real-time forex data into financial dashboards without API key management
- —Agent-driven currency lookups paid per-call with USDC on Base
Fit
Best for
- —Developers needing on-demand NZD/USD rates without subscription commitments
- —AI agents that can autonomously pay for forex data via x402
- —Low-volume or sporadic forex data consumers who prefer pay-per-use
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk rate feeds
- —Users who need historical forex data or OHLCV candles (not indicated as available)
- —Anyone unable to pay with USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/forex/NZDUSD/rate \
-H "X-PAYMENT: <x402-signed-payment>" \
-H "Content-Type: application/json"Example
Response
{
"pair": "NZD/USD",
"rate": 0.6123,
"timestamp": "2025-01-15T12:00:00Z"
}Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented response format, and all docs/pricing/README pages on the site resolve to a bare wallet-connect prompt with no useful content. The response example is entirely inferred.
Warnings
- —No API documentation available — docs, pricing, and README pages all show only a wallet-connect prompt with no technical detail.
- —Response schema for the forex endpoint is not documented; the example response is inferred and may not match actual output.
- —The specific /api/v1/forex/NZDUSD/rate path is not listed on the provider's homepage; it may be an unlisted or experimental endpoint.
Citations
- —The endpoint returns HTTP 402 with an x402 challenge requiring up to 20,000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/forex/NZDUSD/rate
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/forex/NZDUSD/rate
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —Finance & Web3 category includes price feeds, exchange rates, token quotes, and gas estimateshttps://lowpaymentfee.com