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SignalDesk AI Leap Year Checker
x402
SignalDesk AI Leap Year Checker is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).
Determines whether a given year is a leap year, returning a boolean result
Price / call$0.001
Success—
StatusUnknown
How this service works
Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.
Output
A JSON object with a single boolean field `leap` — `true` if the input year is a leap year, `false` otherwise. Example: {"leap": true}.
Example use cases
Event scheduling on Feb 29
“I'm planning an event for February 29th — can you check if 2028 is actually a leap year so I know the date exists?”
Historical calendar validation
“Was 1900 a leap year? I'm trying to verify some historical date records from that era.”
Birthday logic for leap-day babies
“My friend was born on February 29, 1984 — can you confirm 1984 was a leap year so I can figure out when to celebrate their actual birthday this year?”
Technical details
Endpoint
POSThttps://x402-agent.kariguetoazul.workers.dev/api/date/leap-year?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, authoritative, single-call check on whether a specific year is a leap year — particularly within agentic workflows handling date arithmetic, scheduling, calendar generation, or validation logic. Prefer it over writing custom leap-year logic to avoid edge-case bugs (e.g. century years like 1900 vs 2000).
Side effects
- Year outside valid range 0–9999 returns an error
- Non-integer or missing year field causes a validation error
- Network or Cloudflare Worker timeout returns a 5xx error
- Malformed JSON body returns a 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| year | integer | Year. |
Output
Schema · Response
{
"type": "json",
"example": {
"leap": true
}
}Tags
x402
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