Validate an ISO 8601 or RFC 3339 date, time, timestamp, duration or interval, an
Validate an ISO 8601 or RFC 3339 date, time, timestamp, duration or interval, and say which standard it satisfies.
Answeringour last check, 2026-10-21
1 of 1checks answered this week
298 msmedian answer time
$0.02listed price per call
$0.02price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://dev-reference.x402tookit.com/datetime-validate
| Category | Everything else |
|---|---|
| Provider host | dev-reference.x402tookit.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.02 | 298 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"value": "1996-12-19T16:39:57-08:00"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"value": {
"description": "For example 2026-10-11T14:30:00Z, 2026-W41-7, P3Y6M4DT12H30M5S",
"type": "string"
}
},
"required": [
"value"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"dayOfYear": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"durationSecondsIfFixed": {},
"epochSeconds": {
"type": [
"null",
"number"
]
},
"errors": {
"type": [
"array",
"null"
]
},
"hasUtcOffset": {
"type": [
"boolean",
"null"
]
},
"input": {
"type": [
"null",
"string"
]
},
"intervalForm": {},
"isIso8601": {
"type": [
"boolean",
"null"
]
},
"isRfc3339": {
"type": [
"boolean",
"null"
]
},
"isoWeekDate": {
"type": [
"null",
"string"
]
},
"kind": {
"type": [
"null",
"string"
]
},
"leapSecond": {
"type": [
"boolean",
"null"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"type": [
"array",
"null"
]
},
"reducedPrecision": {
"type": [
"boolean",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"utcInstant": {
"type": [
"null",
"string"
]
},
"utcOffsetMinutes": {
"type": [
"null",
"number"
]
},
"valid": {
"type": [
"boolean",
"null"
]
},
"verdict": {
"type": [
"null",
"string"
]
},
"weekday": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}