Marketplace · API · x402

api.sitecheck-api.workers.dev/api/fx

Currency exchange rates from the European Central Bank (about 30 currencies, back to 1999): latest or a given date, amount conversion, or a daily time series between two dates. Source: ECB reference rates via Frankfurter.

Endpointhttps://api.sitecheck-api.workers.dev/api/fx
Trust✓ Verified callable · 100% uptime over 1 checks · ~952 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xb8491F953e6860D3b5840b73c60883Ff099ceAfA
methodGET
last updated2026-11-11T12:15:17.984Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.sitecheck-api.workers.dev/api/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-c4cbec8956fdf58c

Search the whole marketplace from your agent (MCP)

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