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ICS Calendar File Generator
x402
ICS Calendar File Generator is a paid API for AI agents from ics.hergertsynthora.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Generates a valid RFC 5545 iCalendar (.ics) file from event data including title, start/end times, location, description, organizer, and attendees
Price / call$0.001
Success—
StatusUnknown
How this service works
Generate a valid iCalendar (.ics, RFC 5545) file from event data (title, start/end ISO 8601, location, description, attendees). Correct escaping, line-folding, UID. Zero deps, no hallucination. Ed25519-signed. First 3 calls FREE (X-WALLET).
Output
Returns a valid RFC 5545 iCalendar (.ics) file with correct VEVENT structure, properly escaped fields, line-folding, a generated UID, and times normalized to UTC — ready to attach to an email or calendar system
Example use cases
Email calendar invite generation
“Generate a calendar file for our team standup happening every Monday at 10am UTC for one hour. Include the Zoom link in the description and mark our engineering team as attendees so I can email this invite out.”
Conference event scheduling
“Create an .ics file for the annual tech summit on September 15th from 9am to 5pm UTC at the Denver Convention Center. Add the full agenda in the description and list all 50 registered attendees so people can import it into their calendars.”
Client meeting booking confirmation
“Make a calendar attachment for my client meeting with Acme Corp on March 3rd at 3pm UTC lasting 90 minutes. Include the meeting agenda and client contact info in the description, then give me the .ics file to attach to my confirmation email.”
Technical details
Endpoint
POSThttps://ics.hergertsynthora.com/serviceWhen to prefer
Use this endpoint when you need to programmatically generate standards-compliant .ics calendar files that can be attached to emails or imported into calendar applications like Google Calendar, Outlook, or Apple Calendar — especially when correctness of RFC 5545 escaping, line-folding, and UID generation is important and you want a zero-dependency serverless solution
Side effects
- Invalid ISO 8601 date format returns a parsing error
- Missing required title or start time returns a validation error
- Malformed attendee email addresses may cause generation failure
- End time before start time may produce invalid output or error
- Missing X-WALLET header after free trial exhaustion returns a payment required error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| end | string | |
| start | string | ISO 8601 start |
| title | string | |
| location | string | |
| description | string |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "ics",
"result": {
"ics": "BEGIN:VCALENDAR...END:VCALENDAR",
"uid": "...@synthora",
"filename": "Sync.ics",
"dtstart_utc": "20260801T150000Z",
"content_type": "text/calendar; charset=utf-8"
}
}
}Tags
x402
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