Use iCalendar Validator with your AI.
Connect your account once and let the AI you already use work with it, without building another integration. Validates iCalendar (ICS) structural integrity, component boundaries, and date-time syntax.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
Waiting for input…
Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Complete set · 3 capabilities
The complete iCalendar Validator capability set.
These are the exact actions your AI can choose when you ask it to work with iCalendar Validator.
01-03
3 capabilities in this set.
Part of 3 available through iCalendar Validator.
- 01
Check date time syntax
Scans the document to ensure all date and time properties follow the strict iCalendar temporal format
- 02
Validate icalendar structure
Checks the high-level structural integrity and nesting of the iCalendar string
- 03
Verify component properties
Validates that the required properties exist within specific component blocks
Observed, not estimated
822ms average. Fast in production.
iCalendar Validator is checked daily against the live service.
- Fastest day
- 647ms
- Slowest day
- 1063ms
- 14-day trend
- Slowing+34%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.
Preview access · not provider authentication
The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of iCalendar Validator, so you can see the experience inside your AI.
It does not authenticate your account with iCalendar Validator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
iCalendar Validator Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_wLIP6aYDkdlrYy0W5yucP1fzZOl4WMJGEmctEZrd/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — iCalendar Validator capabilities are ready to use.
{
"mcpServers": {
"icalendar-syntax-validator-mcp": {
"url": "https://edge.vinkius.com/vk_preview_wLIP6aYDkdlrYy0W5yucP1fzZOl4WMJGEmctEZrd/mcp"
}
}
}
Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline
Step-by-step instructions for each client are in the guide. How to connect
FAQ
Questions iCalendar Validator owners ask.
- 01
What component types are supported?
The validator specifically supports VEVENT, VTODO, and VJOURNAL components.
- 02
How can I find where an error occurred in my ICS file?
The capabilities return the exact line number where the structural, property, or syntax error was detected.
- 03
Does this capability check for mandatory properties?
Yes, you can use verify_component_properties to ensure that mandatory properties like UID and DTSTAMP are present in your components.
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