GBP/NZD forex exchange rate via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint provides the current GBP/NZD 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, rate limits, or upfront commitments — you pay per call using an on-chain USDC micropayment.
The endpoint is part of a broader suite of APIs offered by lowpaymentfee.com spanning data analytics, AI/ML inference, finance, crypto, and utility services, all priced at $0.02 per request. The forex rate endpoint specifically serves the GBP/NZD currency pair. The endpoint accepts POST requests and returns JSON.
Documentation beyond the landing page is sparse — the /docs, /api, /pricing, and /README pages all resolve to a minimal "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 via a valid 402 challenge, but the actual data source and response format are unknown.
Capabilities
Use cases
- —Fetching the current GBP/NZD exchange rate for trading or analytics applications
- —Integrating real-time forex data into financial dashboards without API key management
- —Agent-driven currency conversion lookups paid per call via x402
Fit
Best for
- —Developers needing on-demand GBP/NZD rates without subscription commitments
- —AI agents that can settle x402 micropayments on Base
- —Applications requiring keyless, pay-per-use forex data
Not for
- —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
- —Users needing historical forex time-series data (only current rate advertised)
- —Anyone unable to pay with USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/forex/GBPNZD/rate \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is confirmed live via a valid x402 402 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 return only a 'Connect wallet' stub. The actual data source and response format are entirely unknown.
Warnings
- —No OpenAPI or schema documentation available — response format is unknown
- —All doc pages (/docs, /api, /pricing, /README) return only a 'Connect wallet' stub with no content
- —Data source for forex rates is undisclosed; accuracy and freshness are unverifiable
- —No SLA, uptime, or latency guarantees documented
Citations
- —Endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/forex/GBPNZD/rate
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on the Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/forex/GBPNZD/rate