iCalendar Validator Connector for AI agents.
3 live capabilities
Debug and validate ICS file structures and date-time syntax
Waiting for input…
Why people use iCalendar Validator
Stop broken calendar imports with iCalendar Syntax Validator
With this MCP, that manual hunt ends. You just hand the raw text to your agent, and it points directly to the problem. It finds the exact line where a date is malformed or where a VEVENT block is missing its mandatory UID. You get the fix immediately instead of guessing.
What Vinkius changes
You get an instant, line-by-line audit of your calendar files to prevent import failures.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 6,100+ Connectors
- Real-world use case 01
Debugging broken event exports
A developer generates an ICS file that won't import into Google Calendar; they ask their agent to find the structural error.
- Real-world use case 02
Automating calendar data cleaning
An engineer needs to verify that thousands of migrated calendar records have the required UID and DTSTAMP fields.
- Real-world use case 03
Validating scheduled task formats
A system generates VTODO entries and needs to ensure the time formats are strictly compliant before sending them to users.
Complete set · 3capabilities
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 Capability
Check date time syntax
Scans the document to ensure all date and time properties follow the strict iCalendar temporal format.
- 02 Capability
Validate icalendar structure
Checks the high-level structural integrity and nesting of the iCalendar string.
- 03 Capability
Verify component properties
Validates that the required properties exist within specific component blocks.
Set up in minutes
One URL. Then ask iCalendar Validator to work.
Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use iCalendar Validator from the conversation.
Choose your client
Live previewAdvanced clients IDE · CLI
Claude · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_wLIP6aYDkdlrYy0W5yucP1fzZOl4WMJGEmctEZrd/mcp - Step 01
Open Connectors
In Claude Web or Claude Desktop, open Settings and choose Connectors.
- Step 02
Add the URL
Choose Add custom connector, name it iCalendar Validator, and paste the URL above.
- Step 03
Turn it on in chat
Select +, open Connectors, and enable iCalendar Validator for the conversation.
ChatGPT · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_wLIP6aYDkdlrYy0W5yucP1fzZOl4WMJGEmctEZrd/mcp - Step 01
Open MCP settings
On desktop, open Settings and MCP servers. On web, open your workspace app or connector settings.
- Step 02
Add the URL
Choose Add server with Streamable HTTP, or create a custom MCP app, then paste the iCalendar Validator URL.
- Step 03
Save and start
Save the connection and enable iCalendar Validator in your conversation. Desktop may ask you to restart once.
Cursor · IDE configuration
Advanced setup
{
"mcpServers": {
"icalendar-syntax-validator": {
"url": "https://edge.vinkius.com/vk_preview_wLIP6aYDkdlrYy0W5yucP1fzZOl4WMJGEmctEZrd/mcp"
}
}
}- Step 01
Open MCP Settings
Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
- Step 02
Add the server config
Paste the JSON configuration above into the mcp.json file that opens
- Step 03
Save the file
Cursor will automatically detect the new Connector
- Step 04
Start using iCalendar Validator
Open Agent mode in chat and ask: "Using iCalendar Validator, help me...". 3 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"icalendar-syntax-validator": {
"url": "https://edge.vinkius.com/vk_preview_wLIP6aYDkdlrYy0W5yucP1fzZOl4WMJGEmctEZrd/mcp"
}
}
}- Step 01
Create MCP config
Create a .vscode/mcp.json file in your project root
- Step 02
Add the server config
Paste the JSON configuration above
- Step 03
Enable Agent mode
Open GitHub Copilot Chat and switch to Agent mode using the dropdown
- Step 04
Start using iCalendar Validator
Ask Copilot: "Using iCalendar Validator, help me...". 3 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"icalendar-syntax-validator": {
"url": "https://edge.vinkius.com/vk_preview_wLIP6aYDkdlrYy0W5yucP1fzZOl4WMJGEmctEZrd/mcp"
}
}
}- Step 01
Open MCP Settings
Go to Settings → MCP Configuration or press Cmd+Shift+P and search "MCP"
- Step 02
Add the server
Paste the JSON configuration above into mcp_config.json
- Step 03
Save and reload
Windsurf will detect the new server automatically
- Step 04
Start using iCalendar Validator
Open Cascade and ask: "Using iCalendar Validator, help me...". 3 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"icalendar-syntax-validator": {
"url": "https://edge.vinkius.com/vk_preview_wLIP6aYDkdlrYy0W5yucP1fzZOl4WMJGEmctEZrd/mcp"
}
}
}- Step 01
Open Cline MCP Settings
Click the Connectors icon in the Cline sidebar panel
- Step 02
Add remote server
Click "Add Connector" and paste the configuration above
- Step 03
Enable the server
Toggle the server switch to ON
- Step 04
Start using iCalendar Validator
Ask Cline: "Using iCalendar Validator, help me...". 3 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add icalendar-syntax-validator --transport http "https://edge.vinkius.com/vk_preview_wLIP6aYDkdlrYy0W5yucP1fzZOl4WMJGEmctEZrd/mcp"- Step 01
Install Claude Code
Run npm install -g @anthropic-ai/claude-code if not already installed
- Step 02
Add the Connector
Run the command above in your terminal
- Step 03
Verify the connection
Run claude mcp to list connected servers, or type /mcp inside a session
- Step 04
Start using iCalendar Validator
Ask Claude: "Using iCalendar Validator, show me...". 3 tools are ready
Where the request belongs
Work iCalendar Validator can move forward.
This is for developers and data engineers who build calendar integrations or automate event scheduling and need to ensure their output is valid.
Software Engineer
Validating generated ICS files during the development of scheduling software.
Data Engineer
Cleaning and verifying calendar data migrations or bulk event imports.
Product Manager
Testing the reliability of calendar export features in new applications.
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Store, share, and collaborate on files securely with enterprise-grade cloud content management and governance controls.
Bring your own AI
Change the model, client or framework. Keep iCalendar Validator connected.
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Claude -
ChatGPT -
Gemini -
Cursor -
VS Code -
Windsurf -
ZCode -
Cline -
Zed -
Continue -
Kiro -
Roo Code -
Zencoder -
Goose -
Void -
Augment Code -
Amp -
Qodo -
Tabnine -
Pieces -
Sourcegraph Cody -
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Warp -
Amazon Q -
Antigravity -
BoltAI -
Raycast -
Jan -
LM Studio -
AnythingLLM -
Open WebUI -
Msty -
Cherry Studio -
LibreChat -
TypingMind -
Chorus -
5ire -
n8n -
LangChain -
LlamaIndex -
CrewAI -
Vercel AI SDK
Before you connect
Questions about iCalendar Validator.
The practical details behind the request, access and result.
How can I use the iCalendar Syntax Validator MCP to fix my calendar files?
You can provide your raw ICS text to your AI client and ask it to check for structural errors or missing fields. It will identify exactly where the file is broken so you can fix it.
Can the iCalendar Syntax Validator MCP find errors in my event timestamps?
Yes. It specifically checks that all date and time properties follow the strict iCalendar temporal format, catching invalid months or incorrect time strings.
Will the iCalendar Syntax Validator MCP tell me why my ICS file won't import?
Yes. It identifies structural failures like unclosed components or missing mandatory fields like UID, which are common reasons for import failures.
Does the iCalendar Syntax Validator MCP work with VTODO and VJOURNAL components?
Yes. It validates the structural integrity and mandatory properties for all standard iCalendar components, including VEVENT, VTODO, and VJOURNAL.
Can I use this iCalendar Syntax Validator MCP to check for missing metadata?
Yes. It can verify that specific component blocks contain all the required properties needed for a valid calendar entry.
What component types are supported?
The validator specifically supports VEVENT, VTODO, and VJOURNAL components.
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.
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.
One connection away
Give your agent a direct line to iCalendar Validator.
Connect iCalendar Validator once. Keep it beside 6,100+ managed Connectors when the next task needs more.
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