x402-toolbox Leap Year Check

x402

x402-toolbox Leap Year Check is a paid API for AI agents from x402-toolbox.shablony-pro.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-29).

Checks whether a given year is a leap year, returning a boolean result via a pay-per-call API over x402.

Price / call$0.002

Seller volume →—

Success—

StatusUnknown

How this service works

309 deterministic pay-per-call tools for AI agents over x402 (USDC, Base). No signup, no API key: the payment is the identity.

Output

Returns a JSON object with an 'ok' boolean indicating success and a 'paid' boolean confirming the x402 micropayment was processed, along with the leap year determination result for the queried year.

Example use cases

Calendar app date validation

“I'm building a calendar feature — can you check if 2096 is a leap year so I know whether to show February 29th that year?”

Historical date research

“Was 1900 a leap year? I want to know if February 29th existed in 1900 for a historical event I'm researching.”

Birthday edge case check

“My friend was born on February 29, 2000 — can you confirm 2000 was actually a leap year so I can set up their birthday reminder correctly?”

Technical details

Endpoint

GEThttps://x402-toolbox.shablony-pro.workers.dev/time/leap-year-check?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a quick, deterministic, no-signup computation for leap year status and are already operating in an x402 micropayment environment. Ideal for AI agents that need calendar logic without managing API keys or subscriptions — the $0.001 USDC payment serves as authentication.

Side effects

Missing or invalid year input returns an error or unexpected result
Non-numeric schema parameter may cause malformed query
x402 payment failure prevents access to the result
Ambiguous or out-of-range year values may yield unexpected behavior

Input

Schema · Request body

Field	Type	Description
schema	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true,
    "paid": true
  }
}

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