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Add Time to ISO Dates
x402
Add Time to ISO Dates is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Adds a specified amount of time (in a given unit) to an ISO 8601 date or timestamp and returns the shifted ISO timestamp
Price / call$0.001
Success—
StatusUnknown
How this service works
Add time to an ISO date. Call for deadlines, reminders, and SLA offsets without timezone libraries. Returns the shifted ISO timestamp (local pure parse; no calendar API). $0.001 USDC per successful call via x402 on Base—deterministic first-party JSON, no API key, no subscription, and nothing is billed on structured validation errors.
Output
A JSON object containing the shifted ISO 8601 timestamp resulting from adding the specified integer amount of the given time unit to the input date. No timezone conversion is performed — the output is a local pure parse of the computed datetime.
Example use cases
SLA deadline calculation for tickets
“I need to compute the SLA deadline for a ticket opened at 2026-09-15T08:30:00Z — add 5 days to that timestamp so I can set the escalation alert.”
Contract renewal reminder scheduling
“Our contract starts on 2027-01-01T00:00:00Z and we need a reminder 90 days before renewal. Add 275 days to that date to get the reminder trigger date.”
Subscription trial expiry computation
“A user started their free trial at 2026-10-10T14:00:00Z. Add 14 days to that timestamp to get their trial expiry date so I can schedule the upgrade email.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/date-addWhen to prefer
Choose this endpoint when you need deterministic, serverless date arithmetic without shipping a timezone library or calendar API dependency. Ideal for agents computing deadlines, SLA offsets, reminders, trial expiries, or any scenario requiring a future or past timestamp from a known anchor date and a fixed integer offset. Costs only $0.001 USDC per call via x402 on Base, with no API key or subscription required.
Side effects
- Invalid or malformed ISO 8601 date string returns a structured validation error (not billed)
- Integer n out of allowed range returns a structured validation error (not billed)
- Unsupported or missing unit may return a validation error
- Network timeout or service unavailability returns an HTTP error with no charge
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| n | integer | Integer input (see tool summary for allowed range). |
| date | string | ISO-8601 date or timestamp (e.g. 2026-08-04 or 2026-08-04T12:00:00Z). |
| unit | — | Optional unit input. |
Output
Schema · Response
{
"type": "json",
"example": {
"date": "2026-08-04T12:00:00+00:00",
"days": 0,
"hours": 0,
"schema": "delx/date-add/v1"
}
}Tags
x402
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