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---
name: ics2json
description: Download an iCalendar (ICS) feed from a URL and output structured JSON with all events. Use this skill whenever the user needs to read, analyze, or integrate events from a public iCal feed such as Teamup or Google Calendar, especially when no API keys are available. Also use as the base for cron jobs that periodically analyze a calendar feed. If the user mentions an .ics file or calendar feed, use this skill.
---
# ics2json
_Updated: 2026-06-08_
Downloads an iCalendar (ICS) feed from a URL and outputs structured JSON with all events.
## When to use
- Reading and analyzing events from a public iCal feed (Teamup, Google Calendar, etc.)
- Integrating an external calendar without API keys
- As the base for cron jobs that periodically analyze a feed
## Script
`python3 skills/ics2json/ics2json.py <url> [options]`
### Options
| Flag | Description |
|------|-------------|
| `--days N` | Only events starting within the next N days |
| `--all` | Include past events (default: future or ongoing only) |
| `--pretty` | Pretty-print JSON output (default: compact, single-line) |
| `--meta` | Only output calendar metadata (name, description, event count). No events returned. |
### Output JSON format
```json
{
"calendar": "Calendar name",
"description": "Calendar description",
"feed_url": "Feed URL",
"fetched_at": "2026-05-20T12:00:00+01:00",
"total_events": 5,
"events": [
{
"uid": "TU123456",
"title": "Event title",
"description": "Description...",
"location": "Venue",
"where": "Teamup address",
"categories": "kink oriented event ⛓️",
"event_url": "https://teamup.com/...",
"external_url": "https://tickets.example.com",
"start": "2026-05-20T19:00:00+01:00",
"end": "2026-05-20T23:00:00+01:00",
"created": "2026-05-01T10:00:00+00:00",
"last_modified": null,
"stamp": "2026-05-19T13:18:47+00:00",
"attachments": [{"url": "https://...", "type": "image/jpeg", "filename": "flyer.jpg"}]
}
]
}
```
### Examples
```bash
# Download a Teamup feed, future events only (compact output)
python3 skills/ics2json/ics2json.py https://ics.teamup.com/feed/ksmt7zqvai72zisjo4/12645979.ics
# Metadata only (compact)
python3 skills/ics2json/ics2json.py https://ics.teamup.com/feed/ksmt7zqvai72zisjo4/12645979.ics --meta
# Only the next 30 days (compact)
python3 skills/ics2json/ics2json.py https://ics.teamup.com/feed/ksmt7zqvai72zisjo4/12645979.ics --days 30
# All events (including past), pretty-printed for human reading
python3 skills/ics2json/ics2json.py https://ics.teamup.com/feed/ksmt7zqvai72zisjo4/12645979.ics --all --pretty
```