Marketplace · API · x402

usaref.dev/v1/:country/:series

Central-bank policy rates, VAT/GST rates and thresholds, statutory interest and minimum wages for 10 North American countries including United States, Canada, Mexico; also CPI, income, corporate and withholding tax, social contributions, holidays. Official central-bank FX reference rates for CA, MX, US. JSON with value, unit, effective date, official source URL and last_confirmed; a country with no such rate says so. GET /v1/{country}/{series}, e.g. /v1/us/policy-rate.

Endpoint	`https://usaref.dev/v1/:country/:series`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~1418 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x1F0409ccD20A2fb497d4DeCeF4E17e9d0688FeA6
method	GET
last updated	2026-10-28T08:35:03.731Z

Use it

Call it (an x402 client pays automatically)

curl -i https://usaref.dev/v1/:country/:series
# 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/x402-7d41d31a237815e5

Search the whole marketplace from your agent (MCP)

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

usaref.dev/v1/:country/:series

Use it

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