Historical AUD/NZD forex data via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint provides historical forex data for the AUD/NZD currency pair. It is part of the lowpaymentfee.com platform, which offers a range of data, AI, finance, and utility APIs all priced at $0.02 per request using the x402 payment protocol on the Base network.
The endpoint accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers include an X-PAYMENT header with a USDC payment on Base (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The maximum amount required is 20,000 base units of USDC (6 decimals), which equals $0.02. No API keys, accounts, or rate limits are advertised — access is purely pay-per-call.
Documentation on the site is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what fields the historical forex data includes (e.g., OHLCV candles, date ranges, granularity). The endpoint is confirmed live via a valid 402 challenge, but the lack of documentation means callers will need to experiment to discover the request format and response structure.
Capabilities
Use cases
- —Retrieving historical AUD/NZD exchange rate data for backtesting trading strategies
- —Feeding forex history into financial models or analytics dashboards
- —Comparing AUD/NZD trends over time for risk assessment
- —Programmatic access to forex data without API key registration
Fit
Best for
- —Developers needing quick, keyless access to AUD/NZD historical forex data
- —Agents or bots that can pay per-call via x402 on Base
- —Low-volume or ad-hoc forex data retrieval without subscription commitments
Not for
- —High-frequency trading requiring sub-second latency and guaranteed SLAs
- —Users who need comprehensive multi-pair forex data in a single call
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/forex/AUDNZD/history \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>" \
-d '{}'Endpoint
Quality
The endpoint is confirmed live via a valid x402 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and no documentation beyond a wallet-connect prompt. The request body format and response structure are entirely unknown, making this effectively a stub listing.
Warnings
- —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'
- —No OpenAPI or JSON schema for request or response bodies
- —Request format (required fields, date ranges, etc.) is completely undocumented
- —Response structure is unknown — no examples available anywhere in crawled content
- —The broader lowpaymentfee.com platform lists many endpoints but provides no technical docs for any of them
Citations
- —Endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units USDC on Basehttps://lowpaymentfee.com/api/v1/forex/AUDNZD/history
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/forex/AUDNZD/history
- —Docs, API, pricing, and README pages returned only 'Connect wallet' with no further contenthttps://lowpaymentfee.com/docs