Marketplace · API · x402

date-math.datemath.workers.dev/v1/holidays

Date Math: List public holidays (bank holidays, national holidays) for a country and year: 207 countries, 2000–2050. Use for holiday calendars, office closures and checking if a date is a holiday. Lunar or government-proclaimed dates are rule-based estimates.

Endpoint	`https://date-math.datemath.workers.dev/v1/holidays`
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	0x7eC21Ee3AA308D2cbB8c65ef0E89af2a30101656
method	POST
last updated	2026-11-11T14:55:21.05Z

Use it

Call it (an x402 client pays automatically)

curl -i https://date-math.datemath.workers.dev/v1/holidays
# 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-efd59d58e501dbd1

Search the whole marketplace from your agent (MCP)

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

date-math.datemath.workers.dev/v1/holidays

Use it

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