Use Cron Expression Validator with your AI.
Connect your account once and let the AI you already use work with it, without building another integration. Validate and calculate next execution times for standard and extended cron expressions.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Complete set · 3 capabilities
The complete Cron Expression Validator capability set.
These are the exact actions your AI can choose when you ask it to work with Cron Expression Validator.
01-03
3 capabilities in this set.
Part of 3 available through Cron Expression Validator.
- 01
Parse cron components
Deconstructs a cron expression into its individual parts to allow for detailed inspection
- 02
Validate cron expression
Checks if a provided string is a syntactically correct cron expression and if all values fall within their permitted numerical ranges
- 03
Calculate next execution
Computes the exact next occurrence of a cron schedule after a specific point in time
Observed, not estimated
535ms average. Fast in production.
Cron Expression Validator is checked daily against the live service.
- Fastest day
- 435ms
- Slowest day
- 699ms
- 14-day trend
- Slowing+17%
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 Cron Expression Validator, so you can see the experience inside your AI.
It does not authenticate your account with Cron Expression Validator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Cron Expression Validator Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_kFyP2sUylQnQvbDkni5efg1FKkWk8UmbE7pghAHb/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 — Cron Expression Validator capabilities are ready to use.
{
"mcpServers": {
"cron-expression-validator-alternative-mcp": {
"url": "https://edge.vinkius.com/vk_preview_kFyP2sUylQnQvbDkni5efg1FKkWk8UmbE7pghAHb/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 Cron Expression Validator owners ask.
- 01
Does this support the 6-field cron format?
Yes, by setting the isExtended parameter to true in capabilities like validate_cron_expression, you can validate and calculate schedules that include seconds.
- 02
How can I see the individual parts of my cron expression?
You can use the parse_cron_components capability to deconstruct your expression into its constituent fields, such as minutes, hours, and days.
- 03
What happens if my cron expression is invalid?
The validate_cron_expression capability will return isValid: false along with a detailed list of validationErrors explaining exactly which field failed and why.
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