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Calendar Slot Finder API
x402
Calendar Slot Finder API is a paid API for AI agents from beautiful-nature-production-a883.up.railway.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-19).
Finds available calendar time slots for scheduling meetings or appointments given scheduling constraints
Price / call$0.02
Success—
StatusUnknown
How this service works
Calendar & scheduling for AI agents
Output
Returns the best available time slot as an object with start and end timestamps, plus an array of all available slots found within the requested window, each with start and end times in ISO 8601 UTC format.
Example use cases
Book a team sync this week
“Can you find an open 30-minute window for a team sync meeting this Thursday or Friday between 10am and noon?”
Schedule a client call next Monday
“I need to set up a 1-hour call with a client next Monday — find me an available slot between 9am and 5pm.”
Find back-to-back appointment slots
“I need two back-to-back 30-minute appointment slots available tomorrow afternoon — what times are open?”
Technical details
Endpoint
POSThttps://beautiful-nature-production-a883.up.railway.app/find-slot?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to find open calendar availability for scheduling a meeting or appointment, especially within a specific time window or with duration constraints. Prefer this over manual calendar lookups when automating scheduling workflows or when an agent needs to present available time options to a user.
Side effects
- No available slots found within the requested time window — returns empty slot list
- Invalid or missing time range parameters — returns validation error
- Malformed request body — returns 400-level error
- Service unavailable on Railway deployment — returns 5xx error
- Payment not processed correctly via x402 — returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"slot": {
"end": "2026-10-15T11:30:00Z",
"start": "2026-10-15T11:00:00Z"
},
"all_slots": [
{
"end": "2026-10-15T11:30:00Z",
"start": "2026-10-15T11:00:00Z"
},
{
"end": "2026-10-15T12:00:00Z",
"start": "2026-10-15T11:30:00Z"
}
]
}
}Tags
x402
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