Marketplace · API · x402

offercheck.offercheck.workers.dev/v1/fx

Convert between 30 major currencies (USD, EUR, GBP, JPY, CHF, CNY, INR, ILS, AUD, CAD, ...) using the European Central Bank's daily reference rates: rate and converted amount for one or many target currencies, optional historical date back to 1999. Returns the ECB rate date and source. $0.002 per call.

Endpointhttps://offercheck.offercheck.workers.dev/v1/fx
Trust✓ Verified callable · 100% uptime over 1 checks · ~43 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xB9721FDD2EC85F7f604F5BBcA2292d7C4ff6B62c
methodGET
last updated2026-11-11T14:43:19.197Z

Use it

Call it (an x402 client pays automatically)

curl -i https://offercheck.offercheck.workers.dev/v1/fx
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-82ea5c5bab717c51

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}