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CoCo Date Math Tool
x402
CoCo Date Math Tool is a paid API for AI agents from cocoeatsai.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-19).
Performs date arithmetic calculations, returning computed dates and their corresponding weekday names
Price / call$0.001
Success—
StatusUnknown
How this service works
Zach Riehn's lab: an about-me and portfolio, a news desk, The Atelier for AI experiments, Launch Lab for XRP research, and Fracture for games.
Output
Returns a JSON object containing the computed result date as an ISO 8601 string (e.g. '2026-10-18') and the corresponding weekday name (e.g. 'Sunday'), allowing agents to answer date arithmetic questions programmatically.
Example use cases
Project deadline calculation
“My project starts on March 1st, 2026 — what date is 45 days later and what day of the week is that?”
Contract expiry date lookup
“If a 90-day contract begins on January 5th, 2027, what date does it expire and is that a weekday?”
Event scheduling forward planning
“What date falls exactly 6 weeks after July 4th, 2026, and what day of the week is it?”
Technical details
Endpoint
GEThttps://cocoeatsai.com/area4/agent/tools/date-math?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need lightweight, fast date arithmetic — specifically computing a future or past date from a start point and returning the weekday — without importing a full calendar library. Best for simple offset calculations rather than complex business-day or timezone-aware scheduling.
Side effects
- Missing or malformed query parameters may return an error or unexpected result
- Invalid date strings (non-ISO format) may not be parsed correctly
- Edge cases like leap year boundaries or month-end rollovers may produce unexpected dates
- No response schema documents error payloads, so error format is undefined
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {
"start": "2026-10-18",
"start_weekday": "Sunday"
},
"exampleNote": "Computed offline with demonstration inputs; time/random values are illustrative."
}Tags
x402
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