Cron Expression Validator Connector for AI agents.
3 live capabilities
Verify and calculate timing for automated task schedules.
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Why people use Cron Expression Validator
Stop breaking your automation with Cron Expression Validator
With this MCP, you just paste the string into your chat. You get an instant confirmation or a clear error message, so you catch mistakes before they hit production.
What Vinkius changes
You stop guessing if your schedules are correct.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 6,100+ Connectors
- Real-world use case 01
Verifying a new production schedule
A developer is unsure if a new cron job will run every Monday at midnight; they ask the agent to check the syntax.
- Real-world use case 02
Calculating maintenance windows
An engineer needs to know if a specific timestamp falls within a scheduled window for a database cleanup task.
- Real-world use case 03
Debugging broken automation pipelines
A DevOps specialist uses the agent to inspect a complex cron string that is causing unexpected job triggers.
Complete set · 3capabilities
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 Capability
Calculate next execution
Finds the exact next time a schedule will trigger after a specific point in time.
- 02 Capability
Parse cron components
Deconstructs a cron string into its individual parts for detailed inspection.
- 03 Capability
Validate cron expression
Checks if your expression is syntactically correct and within valid numerical ranges.
Set up in minutes
One URL. Then ask Cron Expression Validator to work.
Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use Cron Expression 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_kFyP2sUylQnQvbDkni5efg1FKkWk8UmbE7pghAHb/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 Cron Expression Validator, and paste the URL above.
- Step 03
Turn it on in chat
Select +, open Connectors, and enable Cron Expression Validator for the conversation.
ChatGPT · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_kFyP2sUylQnQvbDkni5efg1FKkWk8UmbE7pghAHb/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 Cron Expression Validator URL.
- Step 03
Save and start
Save the connection and enable Cron Expression Validator in your conversation. Desktop may ask you to restart once.
Cursor · IDE configuration
Advanced setup
{
"mcpServers": {
"cron-expression-validator": {
"url": "https://edge.vinkius.com/vk_preview_kFyP2sUylQnQvbDkni5efg1FKkWk8UmbE7pghAHb/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 Cron Expression Validator
Open Agent mode in chat and ask: "Using Cron Expression Validator, help me...". 3 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"cron-expression-validator": {
"url": "https://edge.vinkius.com/vk_preview_kFyP2sUylQnQvbDkni5efg1FKkWk8UmbE7pghAHb/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 Cron Expression Validator
Ask Copilot: "Using Cron Expression Validator, help me...". 3 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"cron-expression-validator": {
"url": "https://edge.vinkius.com/vk_preview_kFyP2sUylQnQvbDkni5efg1FKkWk8UmbE7pghAHb/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 Cron Expression Validator
Open Cascade and ask: "Using Cron Expression Validator, help me...". 3 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"cron-expression-validator": {
"url": "https://edge.vinkius.com/vk_preview_kFyP2sUylQnQvbDkni5efg1FKkWk8UmbE7pghAHb/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 Cron Expression Validator
Ask Cline: "Using Cron Expression Validator, help me...". 3 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add cron-expression-validator --transport http "https://edge.vinkius.com/vk_preview_kFyP2sUylQnQvbDkni5efg1FKkWk8UmbE7pghAHb/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 Cron Expression Validator
Ask Claude: "Using Cron Expression Validator, show me...". 3 tools are ready
Build the capability set
Add more capabilities.
Each Connector adds new actions and data without changing how you work.
Browse Connectors
Cron Expression Validator
Validate and calculate next execution times for standard and extended cron expressions.
Cron Expression Validator & Next Run Calculator Alternative
Validate cron syntax and calculate exact future execution timestamps.
Cron Expression Validator & Next Run Calculator
Validate cron syntax and calculate exact future execution timestamps.
Cron Expression Parser
Validate, interpret, and calculate execution schedules from cron expressions.
Cron Expression Engine
Parse, validate, convert, and generate cron expressions across multiple standards.
Deterministic Cron Schedule Engine
Equip your AI with precise cron job parsing. Deterministically translate cron to natural language, format schedules, and calculate exact next execution times.
Bring your own AI
Change the model, client or framework. Keep Cron Expression Validator connected.
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Claude -
ChatGPT -
Gemini -
Cursor -
VS Code -
Windsurf -
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Cline -
Zed -
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Vercel AI SDK
Before you connect
Questions about Cron Expression Validator.
The practical details behind the request, access and result.
How can I check if my cron string is correct using Cron Expression Validator?
You can simply paste your expression into the chat. The capability will immediately tell you if the syntax is valid or if there are range errors.
Does Cron Expression Validator support 6-field cron formats?
Yes, it supports both the standard 5-field format and the extended 6-field format that includes seconds for higher precision.
Can I find out when my next scheduled task will run?
Yes. If you provide a timestamp, the capability can calculate exactly when the next occurrence of your schedule will happen.
Will Cron Expression Validator help me debug complex cron patterns?
Absolutely. You can use it to break down a string into its individual parts to see exactly how each field is configured.
Can I use Cron Expression Validator for CI/CD pipeline automation?
Yes, it is ideal for verifying the schedules used in your deployment pipelines and automated scripts before you commit changes.
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.
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.
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.
One connection away
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