Marketplace · API · x402

api.kadec0.xyz/v1/forex-history

Historical exchange rates for a currency pair. Returns the daily official reference-rate series between two dates (default the last 30 days, up to 1 year), with the period average, minimum, maximum, and percent change. For FX trend analysis, backdated currency conversion, and finance reporting. Business days only, from the ECB and other central banks. Keyless.

Endpoint	`https://api.kadec0.xyz/v1/forex-history`
Trust	Not checked yet
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA
method	GET
last updated	2026-11-13T20:04:27.515Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.kadec0.xyz/v1/forex-history
# 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/x402-66f7bf3023b55b69

Search the whole marketplace from your agent (MCP)

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