Cron Expression Validator Connector for AI agents.

Q: Does this support the 6-field cron format?

Yes, by setting the isExtended parameter to true in tools like validatecronexpression, you can validate and calculate schedules that include seconds.

Q: How can I see the individual parts of my cron expression?

You can use the parsecroncomponents tool to deconstruct your expression into its constituent fields, such as minutes, hours, and days.

Q: What happens if my cron expression is invalid?

The validatecronexpression tool will return isValid: false along with a detailed list of validationErrors explaining exactly which field failed and why.

3 live capabilities

Verify and predict cron schedule execution times.

Live agent request Cron Expression Validator / Connector

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AI Agent

Why people use Cron Expression Validator

Cron Expression Validator Alternative for automation debugging

With this MCP, you just ask your agent to check the string. It instantly flags errors like an invalid minute value and gives you the exact next run time, saving you from broken production schedules.

What Vinkius changes

You get instant, error-free validation for any scheduling string.

Use it from Claude, ChatGPT, Cursor or another AI client you already have.

One account · 6,100+ Connectors

Real-world use case 01

Checking a new crontab entry

A developer is about to deploy a new scheduled task.
Real-world use case 02

Debugging complex 6-field schedules

An engineer is struggling with a seconds-based schedule.
Real-world use case 03

Calculating next run for alerts

A DevOps lead needs to know when the next maintenance window starts.

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.

Capability set01 / 01

01—03

3 capabilities in this set.

Part of 3 available through Cron Expression Validator.

01 Capability
Calculate next execution
Finds the precise next time a schedule will run after a specific point in time. It is great for verifying upcoming task windows.
02 Capability
Parse cron components
Breaks a cron string into its individual parts like minutes, hours, and days. This makes it much easier to understand complex patterns.
03 Capability
Validate cron expression
Checks if your cron string is syntactically correct and within valid numerical ranges. It catches errors like invalid minute or hour values instantly.

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 preview

Advanced clients IDE · CLI

Claude · Web + desktop

Official guide ↗

Connector URL · ready to paste

Streamable HTTP

https://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

Official guide ↗

Connector URL · ready to paste

Streamable HTTP

https://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

Official guide ↗

Advanced setup

{
  "mcpServers": {
    "cron-expression-validator-alternative": {
      "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

Official guide ↗

Advanced setup

{
  "mcpServers": {
    "cron-expression-validator-alternative": {
      "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

Official guide ↗

Advanced setup

{
  "mcpServers": {
    "cron-expression-validator-alternative": {
      "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

Official guide ↗

Advanced setup

{
  "mcpServers": {
    "cron-expression-validator-alternative": {
      "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

Official guide ↗

Advanced setup

claude mcp add cron-expression-validator-alternative --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

Each Connector adds new actions and data without changing how you work.

Browse Connectors

01 3 capabilities

Cron Expression Validator

Validate and calculate next execution times for standard and extended cron expressions.

View Connector

02 3 capabilities New

Cron Expression Validator & Next Run Calculator Alternative

Validate cron syntax and calculate exact future execution timestamps.

View Connector

03 3 capabilities New

Cron Expression Validator & Next Run Calculator

Validate cron syntax and calculate exact future execution timestamps.

View Connector

04 4 capabilities

Cron Expression Parser

Validate, interpret, and calculate execution schedules from cron expressions.

View Connector

05 4 capabilities

Cron Expression Engine

Parse, validate, convert, and generate cron expressions across multiple standards.

View Connector

06 3 capabilities

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.

View Connector

Bring your own AI

Change the model, client or framework. Keep Cron Expression Validator connected.

Claude
ChatGPT
Gemini
Cursor
VS Code
Windsurf
ZCode
Cline
Zed
Continue
Kiro
Roo Code
Zencoder
Goose
Void
Augment Code
Amp
Qodo
Tabnine
Pieces
Sourcegraph Cody
JetBrains
Warp
Amazon Q
Antigravity
BoltAI
Raycast
Jan
LM Studio
AnythingLLM
Open WebUI
Msty
Cherry Studio
LibreChat
TypingMind
Chorus
5ire
n8n
LangChain
LlamaIndex
CrewAI
Vercel AI SDK

Before you connect

Questions about Cron Expression Validator.

The practical details behind the request, access and result.

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

Give your agent a direct line to Cron Expression Validator.

Connect Cron Expression Validator once. Keep it beside 6,100+ managed Connectors when the next task needs more.

Explore every Connector No credit card required · Free tier available

Cron Expression Validator Alternative for automation debugging

You get instant, error-free validation for any scheduling string.

Checking a new crontab entry

Debugging complex 6-field schedules

Calculating next run for alerts

Calculate next execution

Parse cron components

Validate cron expression

Open Connectors

Add the URL

Turn it on in chat

Open MCP settings

Add the URL

Save and start

Open MCP Settings

Add the server config

Save the file

Start using Cron Expression Validator

Create MCP config

Add the server config

Enable Agent mode

Start using Cron Expression Validator

Open MCP Settings

Add the server

Save and reload

Start using Cron Expression Validator

Open Cline MCP Settings

Add remote server

Enable the server

Start using Cron Expression Validator

Install Claude Code

Add the Connector

Verify the connection

Start using Cron Expression Validator

Cron Expression Validator

Cron Expression Validator & Next Run Calculator Alternative

Cron Expression Validator & Next Run Calculator

Cron Expression Parser

Cron Expression Engine

Deterministic Cron Schedule Engine

Give your agent a direct line to Cron Expression Validator.