# ICS Calendar Event Generator

> ICS Calendar Event Generator is a paid API for AI agents from dev-utils.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-02).

Builds a properly escaped and folded RFC 5545 .ics calendar event file from title, start, end, location, and description fields.

## Facts

- Endpoint: GET https://dev-utils.x402tookit.com/ics-event?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ics-calendar-event-generator-6c6a2e6c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TL8IP7WuiRgAfA1Ad3Pw_

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability ics-calendar-event-generator-6c6a2e6c
```

Example prompt: Can you create an ICS calendar file for my team standup called 'Weekly Standup' on 2026-04-07T09:00:00Z to 2026-04-07T09:30:00Z, in Conference Room B, with the description 'Sync on sprint progress'?

## When to prefer this

Use this endpoint when you need a standards-compliant RFC 5545 .ics file with proper escaping and line folding — suitable for direct attachment to emails, import into calendar apps like Google Calendar, Outlook, or Apple Calendar. Prefer this over hand-crafting ICS strings, which are error-prone with special characters and line length limits.

## Known failure modes

- Missing required 'title' or 'start' parameter returns validation error
- Invalid date format for start or end causes parse failure or degraded response
- End datetime before start datetime results in error or correction notice
- Malformed timezone offset may cause timeKind fallback to local
- Very long description or title may increase folded line count but should still succeed

## How this service works

Build an RFC 5545 .ics calendar event from title, start, end, location, description; escaped and folded.

## Output

Returns a structured object containing the full RFC 5545 .ics file content as a string, the canonical UID, parsed DTSTART and DTEND, a filename suggestion, whether it is an all-day event, the timeKind (UTC/offset/local), the number of folded lines, and any degraded/warning flags or reasons if the input was partially invalid.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "title",
      "start"
     ],
     "properties": {
      "end": {
       "type": "string",
       "description": "Same format as start; must be after start. Default: all-day +1 day, or +1 hour"
      },
      "uid": {
       "type": "string",
       "description": "Stable event id; default is derived from the fields"
      },
      "start": {
       "type": "string",
       "description": "YYYY-MM-DD (all day), 2026-03-01T09:00:00Z or +05:30 offset, or zoneless local time"
      },
      "title": {
       "type": "string",
       "description": "Event title (SUMMARY)"
      },
      "location": {
       "type": "string",
       "description": "Where (LOCATION)"
      },
      "description": {
       "type": "string",
       "description": "Longer text (DESCRIPTION)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "ics": {
       "type": [
        "null",
        "string"
       ]
      },
      "uid": {
       "type": [
        "null",
        "string"
       ]
      },
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "dtend": {
       "type": [
        "null",
        "string"
       ]
      },
      "allDay": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "dtstart": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ]
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "filename": {
       "type": [
        "null",
        "string"
       ]

… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ics-calendar-event-generator-6c6a2e6c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dev-utils.x402tookit.com](https://www.zero.xyz/host/dev-utils.x402tookit.com/llms.txt)