Pay-per-call GBP/NZD forex rate via x402 on Base, settled in USDC at $0.02/request.
What it does
This endpoint provides GBP/NZD foreign exchange rate data accessible through the x402 payment protocol. It is hosted at lowpaymentfee.com, a platform offering a variety of pay-per-request APIs spanning finance, AI, data analytics, and utility services. Each call costs $0.02 (20,000 base units of USDC on the Base network, where USDC uses 6 decimals). No API keys or accounts are required — payment is handled inline via the x402 X-PAYMENT header.
The endpoint accepts POST requests and returns JSON. Based on the URL path (`/api/v1/forex/GBPNZD`), it serves the British Pound to New Zealand Dollar exchange rate. The broader lowpaymentfee.com platform lists additional forex, crypto, AI, and utility endpoints all at the same $0.02 price point. The site advertises no rate limits and instant access.
Documentation is extremely sparse. The /docs, /pricing, /api, and /README pages all returned only a "Connect wallet" prompt with no substantive content. 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 data format and fields returned are unknown and must be inferred from the endpoint path alone.
Capabilities
Use cases
- —Retrieve the current GBP/NZD exchange rate for trading or portfolio valuation
- —Automate currency conversion calculations in financial applications
- —Feed live forex data into algorithmic trading bots or dashboards
- —Agent-driven forex lookups without pre-provisioned API keys
Fit
Best for
- —Agents or apps needing on-demand GBP/NZD rates without signup
- —Micropayment-friendly forex data access on Base L2
- —Developers prototyping x402-based financial data pipelines
Not for
- —High-frequency trading requiring sub-millisecond latency and guaranteed SLAs
- —Historical forex data or time-series analysis (no evidence of historical endpoints)
- —Users who need detailed documentation or response schema guarantees before integrating
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/forex/GBPNZD \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"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 documentation, no example requests or responses, and no description of the response schema. The listing is essentially a stub with only the payment challenge and homepage listing to go on.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README pages all return only a wallet-connect prompt with no content.
- —No OpenAPI or schema definition found; response format is entirely unknown.
- —No example request or response payloads available; actual data fields must be discovered empirically.
- —The specific /forex/GBPNZD endpoint is not listed on the homepage (only /finance/rates and /finance/prices are shown), so its existence and behavior are inferred from the URL and 402 challenge alone.
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/forex/GBPNZD
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/forex/GBPNZD
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The platform lists finance endpoints including /api/v1/finance/prices and /api/v1/finance/rateshttps://lowpaymentfee.com