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Cron Parser

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io.github.lazymac2x/cron-parserv1.0.0

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https://api.lazy-mac.com/cron-parser/mcp

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common_crons

List commonly used cron expressions with descriptions.

This tool takes no arguments.

This tool isn't marked read-only, so it may change something on the server or in an account you connected.

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Tools (6)

common_crons

List commonly used cron expressions with descriptions.

No arguments.

Cron Parser MCP server | mcptry

diff_cron

Compare two cron expressions and return per-field differences.

Argument	Type	Description
first*	string	First cron expression
second*	string	Second cron expression

Input schema (JSON)

{
  "type": "object",
  "required": [
    "first",
    "second"
  ],
  "properties": {
    "first": {
      "type": "string",
      "description": "First cron expression"
    },
    "second": {
      "type": "string",
      "description": "Second cron expression"
    }
  }
}

explain_cron

Explain a cron expression in human-readable form and show parsed fields. Supports @presets like @daily, @weekly.

Argument	Type	Description
expression*	string	Cron expression (e.g. "/5 * * *" or "@daily")

Input schema (JSON)

{
  "type": "object",
  "required": [
    "expression"
  ],
  "properties": {
    "expression": {
      "type": "string",
      "description": "Cron expression (e.g. \"*/5 * * * *\" or \"@daily\")"
    }
  }
}

generate_cron

Generate a cron expression from human-friendly options.

Argument	Type	Description
at	object
on	object
every*	string	Frequency
month	number	Month (1-12)

Input schema (JSON)

{
  "type": "object",
  "required": [
    "every"
  ],
  "properties": {
    "at": {
      "type": "object",
      "properties": {
        "hour": {
          "type": "number"
        },
        "minute": {
          "type": "number"
        }
      }
    },
    "on": {
      "type": "object",
      "properties": {
        "day": {
          "type": "number",
          "description": "0=Sunday"
        },
        "date": {
          "type": "number",
          "description": "1-31"
        }
      }
    },
    "every": {
      "enum": [
        "minute",
        "hour",
        "day",
        "week",
        "month"
      ],
      "type": "string",
      "description": "Frequency"
    },
    "month": {
      "type": "number",
      "description": "Month (1-12)"
    }
  }
}

next_runs

Get the next N scheduled run times for a cron expression. Uses standard Unix OR semantics for day fields.

Argument	Type	Description
from	string	ISO 8601 start date (default: now)
count	number	Number of next runs to return (1-20, default 5)
expression*	string	Cron expression

Input schema (JSON)

{
  "type": "object",
  "required": [
    "expression"
  ],
  "properties": {
    "from": {
      "type": "string",
      "description": "ISO 8601 start date (default: now)"
    },
    "count": {
      "type": "number",
      "description": "Number of next runs to return (1-20, default 5)"
    },
    "expression": {
      "type": "string",
      "description": "Cron expression"
    }
  }
}

validate_cron

Check if a cron expression is valid. Returns {valid: bool, error?: string}.

Argument	Type	Description
expression*	string	Cron expression to validate

Input schema (JSON)

{
  "type": "object",
  "required": [
    "expression"
  ],
  "properties": {
    "expression": {
      "type": "string",
      "description": "Cron expression to validate"
    }
  }
}