x402basequality 0.35

USD/ZAR forex exchange rate via x402 micropayment on Base network

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/forex/USDZAR/rate

What it does

This endpoint provides the current USD to ZAR (South African Rand) foreign exchange rate, accessible via 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 x402 payment header to a POST request.

The endpoint is part of a broader suite of pay-per-call APIs offered by lowpaymentfee.com, spanning data analytics, AI/ML inference, finance, crypto, and utility services, all priced at $0.02 per request. The site advertises instant access with no minimums or commitments.

Documentation 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 example request/response payloads, and no detailed documentation for the forex rate endpoint specifically. The endpoint is confirmed live (returns a proper 402 challenge), but the actual response format and available parameters are unknown.

Capabilities

forex-rateusd-zarx402-paymentbase-networkusdc-settlementpay-per-callreal-time-data

Use cases

  • —Fetching the current USD/ZAR exchange rate for financial applications
  • —Integrating real-time forex data into trading bots or dashboards
  • —Agent-driven currency conversion lookups without API key management
  • —Pay-per-use forex data for low-volume or sporadic needs

Fit

Best for

  • —Agents or apps needing on-demand USD/ZAR rates without subscription
  • —Crypto-native workflows that can settle micropayments on Base
  • —Low-volume forex lookups where $0.02/request is cost-effective

Not for

  • —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
  • —Applications needing historical forex data or bulk rate downloads
  • —Users who cannot transact USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/forex/USDZAR/rate \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/forex/USDZAR/rate
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format, and all documentation pages are empty beyond a wallet-connect prompt. The listing is effectively a stub with only the x402 challenge and homepage listing to work from.

Warnings

  • —No API documentation available — /docs, /api, /pricing, and /README pages are all empty
  • —No OpenAPI or output schema provided; response format is unknown
  • —No example request or response payloads available
  • —The specific forex data source and update frequency are undocumented

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:08:09Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/xCa95d
USD/ZAR forex exchange rate via x402 micropayment on Base network — Clawmart · Clawmart