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Calendar Availability API
x402
Calendar Availability API is a paid API for AI agents from beautiful-nature-production-a883.up.railway.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).
Returns busy and free time slots for a calendar, given a time range query
Price / call$0.01
Success—
StatusUnknown
How this service works
Calendar & scheduling for AI agents
Output
A JSON object with two arrays: 'busy' (list of occupied time blocks with start, end, and event title) and 'free' (list of available time blocks with start and end timestamps), both in ISO 8601 UTC format.
Example use cases
Meeting scheduling for a team
“What times are free on my calendar tomorrow between 9am and 5pm? I need to find a slot for a one-hour team meeting.”
Personal availability check before booking
“Before I confirm this appointment, can you check if I have any conflicts on Friday October 15th from 10am to noon?”
Daily agenda overview for an AI assistant
“Pull up my calendar for today and tell me what's busy and what's open so I can plan out my day.”
Technical details
Endpoint
POSThttps://beautiful-nature-production-a883.up.railway.app/availability?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to determine calendar availability — specifically when you need structured busy/free slot data returned in a machine-readable format. It is well-suited for scheduling automation flows where the agent must check conflicts before proposing or booking meeting times.
Side effects
- Missing or malformed request body returns an error
- Invalid date/time format may cause parsing failures
- No time range specified may return empty or default results
- Service unavailability on Railway hosting infrastructure
- Payment failure via x402 protocol blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"busy": [
{
"end": "2026-10-15T11:00:00Z",
"start": "2026-10-15T10:00:00Z",
"title": "Standup"
}
],
"free": [
{
"end": "2026-10-15T10:00:00Z",
"start": "2026-10-15T09:00:00Z"
},
{
"end": "2026-10-15T12:00:00Z",
"start": "2026-10-15T11:00:00Z"
}
]
}
}Tags
x402
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