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Connect Cron Expression Validator Next Run Calcul to your AI

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Verify scheduling syntax and predict exact execution times.

Ask AI about this Connector

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.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

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V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 3 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through Cron Validator.

  1. 01

    Get next runs

    Calculates the upcoming N execution timestamps for a specific cron expression.

  2. 02

    Validate cron

    Checks a cron expression for correct syntax and logical feasibility.

  3. 03

    Inspect expression

    Breaks down a cron expression into its individual, human-readable parts.

Real work

What teams actually run

01

Automated Deployment Safety

Your agent validates a new cron string before adding it to a production crontab.

02

Schedule Auditing

You use the capability to verify that a specific task will run at the expected times over the next week.

03

Debugging Complex Patterns

An engineer uses the inspection capability to understand a legacy cron expression in a large codebase.

04

Workflow Automation

An AI agent calculates the next run time to decide when to trigger a follow-up notification.

One connector, every AI

Cron Validator works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put Cron Validator to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

592ms average. Fast in production.

Cron Validator is checked daily against the live service.

Daily averagePeak 726ms
Oct 3Today
Fastest day
500ms
Slowest day
726ms
14-day trend
Slowing+10%

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 Validator, so you can see the experience inside your AI.

It does not authenticate your account with Cron Validator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Cron Validator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_azeipbwG8DN5DThWMywDx4D6XKPmifpb2gea1Ujk/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Cron Validator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "cron-expression-validator-next-run-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_azeipbwG8DN5DThWMywDx4D6XKPmifpb2gea1Ujk/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

Guided setup for Claude? Set up Cron Validator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Cron Validator owners hand off.

This MCP is built for developers and DevOps engineers who manage automated tasks and scheduled jobs.

  • 01

    DevOps Engineer

    Hands off cron string validation to the AI to ensure deployment safety.

  • 02

    Backend Developer

    Uses the capability to verify scheduling logic for background workers and cron jobs.

  • 03

    SRE

    Audits existing schedules by projecting future run times via an AI agent.

FAQ

Questions Cron Validator owners ask.

  • 01

    Does this MCP support 6-field cron expressions?

    Yes, it handles both standard 5-field and 6-field cron expressions.

  • 02

    How does it handle impossible dates?

    The validation capability checks for logical errors, such as a request to run a task on February 30th, and flags them as invalid.

  • 03

    Can I use this with Cursor or VS Code?

    Yes, any MCP-compatible client like Cursor, VS Code, or Windsurf can use this capability once connected through Vinkius.

  • 04

    What happens if I provide a malformed cron string?

    The validate_cron capability will identify the syntax error and report it back to your AI agent.

  • 05

    Is the calculation of next runs accurate?

    Yes, the get_next_runs capability provides deterministic timestamps for future executions.

  • 06

    Does it support 6-field cron expressions?

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

  • 07

    How can I see when my next task will run?

    You can use the get_next_runs capability by providing your cron expression and a starting timestamp.

  • 08

    Can it detect invalid dates in a cron string?

    Yes, validate_cron will flag logically impossible expressions like February 30th.

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