NZD/CAD forex exchange rate via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint returns the current NZD/CAD foreign exchange rate, accessible via the x402 payment protocol on the Base network. Each request costs $0.02 (20,000 base units of USDC with 6 decimals) and requires no API keys, accounts, or rate limits — just an x402-compatible payment header.
The endpoint is part of a broader suite of APIs offered by lowpaymentfee.com, which spans data analytics, AI/ML inference, finance/crypto market data, and utility services. All endpoints on the platform share the same $0.02-per-request pricing model and settle payments in USDC on Base. The forex rate endpoint specifically serves the NZD/CAD currency pair and responds with JSON.
Documentation on the site is extremely sparse — the docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no further 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 a proper 402 x402 challenge), but the actual response format must be inferred from the endpoint path and general conventions.
Capabilities
Use cases
- —Fetching the current NZD/CAD exchange rate for currency conversion applications
- —Integrating real-time forex data into trading bots or financial dashboards
- —Programmatic access to NZD/CAD rates for invoicing or cross-border payment calculations
Fit
Best for
- —Agents or apps needing on-demand NZD/CAD forex rates without API key management
- —x402-native workflows that settle micropayments in USDC on Base
- —Low-volume or sporadic forex lookups where per-call pricing is preferable to subscriptions
Not for
- —High-frequency trading requiring sub-millisecond latency or bulk historical data
- —Users who need dozens of currency pairs in a single call (this endpoint covers only NZD/CAD)
- —Applications that cannot integrate x402 payment headers
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/forex/NZDCAD/rate \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 x402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and all documentation pages are empty stubs. The listing is essentially a stub with only the challenge metadata and landing page to work from.
Warnings
- —No OpenAPI or schema documentation available — response format is unknown
- —All doc/pricing/API/README pages render only 'Connect wallet' with no content
- —No example request or response payloads could be found
- —The specific forex data source and update frequency are undisclosed
Citations
- —Endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 in USDC on Basehttps://lowpaymentfee.com/api/v1/forex/NZDCAD/rate
- —All APIs on the platform cost $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/forex/NZDCAD/rate