Real-time EUR/AUD forex exchange rate via x402 micropayment on Base network.
What it does
This endpoint returns the current EUR/AUD foreign exchange rate, accessible through the x402 payment protocol on the Base network. Each request costs $0.02 in USDC (20,000 base units with 6 decimals), settled on-chain to the provider's wallet. No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.
The endpoint is part of a broader suite of APIs offered by lowpaymentfee.com spanning finance, analytics, AI/ML, crypto, and utility services, all priced uniformly at $0.02 per request. The forex rate endpoint specifically serves the EUR/AUD currency pair and returns JSON. The provider advertises instant access with no minimums or commitments.
Documentation beyond the landing page is sparse — the /docs, /pricing, and /README pages all render only a wallet-connect prompt with no additional 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 challenge), but the actual response format must be inferred.
Capabilities
Use cases
- —Fetching the current EUR/AUD exchange rate for trading bots or portfolio dashboards
- —Embedding live forex data into financial applications without managing API key subscriptions
- —Agent-driven currency conversion workflows that pay per call on Base network
- —Automated reporting that needs up-to-date cross-currency rates
Fit
Best for
- —Agents or apps needing on-demand EUR/AUD rates without subscription overhead
- —Developers building on Base who want native on-chain payment for API access
- —Low-volume or bursty forex data consumers who prefer pay-per-request pricing
Not for
- —High-frequency trading requiring sub-millisecond latency or bulk historical forex data
- —Users who need dozens of currency pairs in a single call (this endpoint covers only EUR/AUD)
- —Teams that require detailed API documentation and SLA guarantees before integration
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/forex/EURAUD/rate \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"Example
Response
{
"pair": "EUR/AUD",
"rate": 1.7234,
"timestamp": "2025-01-15T12:00:00Z"
}Endpoint
Quality
The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented response schema, no example payloads, and the docs/pricing/README pages are empty wallet-connect stubs. The response example above is entirely inferred.
Warnings
- —No OpenAPI or response schema available — response format is unknown and the example is inferred
- —Documentation pages (/docs, /pricing, /README) contain no useful content beyond a wallet-connect prompt
- —No SLA, uptime guarantees, or rate-limit details are published
- —The actual data source for the EUR/AUD rate is not disclosed
Citations
- —The endpoint returns HTTP 402 with an x402 challenge requiring USDC payment on Base networkhttps://lowpaymentfee.com/api/v1/forex/EURAUD/rate
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/forex/EURAUD/rate
- —maxAmountRequired is 20000 base units (USDC has 6 decimals = $0.02)https://lowpaymentfee.com/api/v1/forex/EURAUD/rate