Marketplace · API · x402

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

Date Math: Is a date a business day? If not, why (weekend, or which public holiday). Also the next and previous business day, and the month's business-day count, first and last business day. Use for office-open checks, shipping cut-offs, settlement dates. Country holidays, custom holidays and custom workweeks (e.g. Sun–Thu, Mon–Sat).

Endpoint	`https://date-math.datemath.workers.dev/v1/business_day`
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	2026-11-09T11:11:26.562Z

Use it

Call it (an x402 client pays automatically)

curl -i https://date-math.datemath.workers.dev/v1/business_day
# 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/x402-3c161b4fed1d629c

Search the whole marketplace from your agent (MCP)

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

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

Use it

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