x402basequality 0.45

USD/ZAR forex rate via x402 micropayment on Base for $0.02 per request.

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

What it does

This endpoint provides the USD/ZAR (US Dollar to South African Rand) foreign exchange rate, accessible through the x402 payment protocol. It is hosted on lowpaymentfee.com, a platform offering a variety of pay-per-call APIs spanning finance, AI/ML, data analytics, and infrastructure utilities — all settled on the Base network using USDC.

The endpoint is live and returns a standard x402 challenge (HTTP 402) requiring an `X-PAYMENT` header with a payment proof. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. Payment is made to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on the Base L2 network using the USDC contract at `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`. The response MIME type is `application/json`.

No API keys or rate limits are advertised. The platform's landing page lists uniform $0.02 pricing across all endpoints. Documentation pages beyond the landing page returned only a "Connect wallet" prompt with no additional technical detail, so the exact response schema for the forex endpoint is unknown. The endpoint accepts POST requests as indicated by the outputSchema in the x402 challenge.

Capabilities

forex-rateusd-zarx402-paymentbase-networkusdc-settlementpay-per-callno-api-key

Use cases

  • —Fetching the current USD/ZAR exchange rate for financial applications
  • —Integrating real-time forex data into trading bots or dashboards
  • —Currency conversion calculations involving the South African Rand
  • —Agent-driven micropayment access to forex data without API key management

Fit

Best for

  • —Developers needing on-demand USD/ZAR rates without subscription commitments
  • —AI agents that can settle x402 payments on Base
  • —Low-volume or sporadic forex data consumers who prefer pay-per-call

Not for

  • —High-frequency trading requiring sub-millisecond latency or bulk rate discounts
  • —Users who need historical forex time-series data (not evidenced by this endpoint)
  • —Consumers without a Base-compatible USDC wallet

Quick start

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

Endpoint

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

Quality

0.45/ 1.00

The endpoint is live with a valid x402 402 challenge, pricing is clear ($0.02/request in USDC on Base), and the purpose (USD/ZAR forex rate) is evident from the URL. However, there is no OpenAPI schema, no documented response format, and all documentation pages beyond the landing page are empty stubs showing only 'Connect wallet'. The exact response payload structure is unknown.

Warnings

  • —No response schema or example response documented — the exact JSON structure returned after payment is unknown.
  • —Documentation pages (/docs, /api, /pricing, /README) are effectively empty, showing only a 'Connect wallet' prompt.
  • —The platform lists many diverse API categories (AI, analytics, finance, infrastructure) at uniform pricing, but no detailed documentation exists for any of them — exercise caution regarding data quality and reliability.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:01:50Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/RHDrVe
USD/ZAR forex rate via x402 micropayment on Base for $0.02 per request. — Clawmart · Clawmart