MCP For Claude Marketplace
Cron Expression Validator & Next Run Calculator

Cron Expression Validator & Next Run Calculator MCP Connector for Claude

A+

Validate cron syntax and calculate exact future execution timestamps.

3 tools Official Updated Oct 1, 2026 Official Vinkius Partner
More Details Connect to Claude

This MCP server provides a deterministic engine for working with standard 5-field and 6-field cron expressions. It allows AI agents to verify if a cron string is syntactically correct using validate_cron, preventing deployment errors in automated workflows. Beyond simple validation, you can use get_next_runs to project exactly when a task will trigger, which is essential for scheduling audits. For complex patterns, the inspect_expression tool decomposes the expression into human-readable components, making it easy to understand precisely what each field represents. The server also flags impossible dates, such as February 30th, ensuring your schedules are logically sound.

cronschedulingvalidationautomationdatetime

3 tools expose this connector's capabilities to your AI agent.

get_next_runs

Calculates the next N execution timestamps for a cron expression

validate_cron

Validates a cron expression for syntax and logical possibility

inspect_expression

Decomposes a cron expression into human-readable parts

See how to talk to your AI agent using Cron Expression Validator & Next Run Calculator.

Is '0 0 31 2 *' a valid cron expression?

No, the expression '0 0 31 2 *' is invalid because February 3 precisely does not have 31 days.

When are the next 3 runs for '*/5 * * * *' starting from now?

The next three executions are: 2024-05-20T10:05:00Z, 2024-05-20T10:10:00Z, and 2024-05-20T10:15:00Z.

Explain what this cron expression does: '0 12 * * 1-5'

This expression triggers at 12:00 PM, Monday through Friday.

Yes, the server supports both standard 5-field and extended 6-field cron formats.

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