Marketplace · API · x402

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

Date Math: Rolling stay-limit math such as the Schengen 90/180 rule: days used in the window, days left, overstay check, the longest stay allowed from a planned entry date, and the next date a full stay is possible. Entry and exit days both count. Custom rules via max_days/window_days. Use for travel planning, visa-free stays and "can I enter on".

Endpointhttps://date-math.datemath.workers.dev/v1/stay
TrustNot checked yet
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x7eC21Ee3AA308D2cbB8c65ef0E89af2a30101656
methodPOST
last updated2026-11-09T11:11:29.408Z

Use it

Call it (an x402 client pays automatically)

curl -i https://date-math.datemath.workers.dev/v1/stay
# 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/x402-820a7b54ccdbecd8

Search the whole marketplace from your agent (MCP)

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

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