How does this prevent AI hallucinations?

Instead of the AI guessing what an email looks like, it uses the extract_pattern capability to apply strict mathematical rules that only match valid structures.

Is my data safe when redacting PII?

Yes. The regex engine compiles and executes entirely locally, meaning your sensitive data does not leave your infrastructure.

Which AI clients can use this MCP?

You can use this with any MCP-compatible client, including Claude, Cursor, Windsurf, and VS Code.

Can I use this to validate URLs?

Yes. The validate_pattern capability checks if a string perfectly matches the required format for a URL, email, or phone number.

Does this work with large text files?

Yes. The extract_pattern capability is designed to pull unique contact info from large bodies of text instantly.

Why use this instead of asking the AI to find the emails?

Because LLMs predict text probabilistically. They might miss emails embedded in weird characters (like contact@company.com. with a trailing dot) or hallucinate non-existent addresses. Regex provides mathematical certainty.

Does the PII masking send data to the cloud?

Never. The mask_sensitive_data capability runs exclusively on your local Javascript engine (V8). It acts as a local firewall, ensuring sensitive strings are redacted before any external processing happens.

What format of phone numbers are supported?

The regex captures international formats with country codes (e.g., +1, +55), optional parentheses for area codes, and spacing/hyphens commonly used globally.

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Connect Regex Toolkit to ChatGPT, Claude and Gemini

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. Get exact contact info without LLM guesswork or hallucinations.

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.

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.

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 Regex Toolkit.

01
Extract pattern
This capability pulls every unique email, URL, or phone number from a large block of text. It returns the results as a clean, structured list.
02
Mask sensitive data
This capability redacts PII like emails and phone numbers from text. It replaces sensitive strings with [REDACTED] tags to protect privacy.
03
Validate pattern
This capability checks if a specific string matches the exact structure of an email, URL, or phone number. It provides a definitive yes or no based on mathematical patterns.

Real work

What teams actually run

Support Ticket Processing

Pull all customer emails from a long transcript for CRM entry.

Data Sanitization

Scrub phone numbers and emails from documents before public release.

Input Verification

Check if a user-provided URL or email is structurally valid.

Automated Reporting

Redact sensitive client details in logs before generating summaries.

Automate a task

Put Regex Toolkit to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Regex Toolkit 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.

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

You don't need a client to put Regex Toolkit 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

895ms average. Fast in production.

Regex Toolkit is checked daily against the live service.

Daily averagePeak 1154ms

Oct 3Today

Fastest day: 647ms
Slowest day: 1154ms
14-day trend: Improving-22%

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 Regex Toolkit, so you can see the experience inside your AI.

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

Regex Toolkit Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_iWHGnBSf4hsPpyRONBGuBJdlaAxPgjzlM6EjoAIv/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — Regex Toolkit capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "regex-toolkit-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_iWHGnBSf4hsPpyRONBGuBJdlaAxPgjzlM6EjoAIv/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 Regex Toolkit in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Regex Toolkit owners hand off.

This MCP is built for developers and data professionals who need to bridge the gap between messy human text and structured data.

01
Data Engineers
They hand off unstructured logs to the agent for cleaning and validation.
02
Security Analysts
They use the agent to redact PII before sharing reports.
03
Software Developers
They use the agent to validate user inputs against strict formats.

FAQ

Questions Regex Toolkit owners ask.

01
How does this prevent AI hallucinations?
Instead of the AI guessing what an email looks like, it uses the extract_pattern capability to apply strict mathematical rules that only match valid structures.
02
Is my data safe when redacting PII?
Yes. The regex engine compiles and executes entirely locally, meaning your sensitive data does not leave your infrastructure.
03
Which AI clients can use this MCP?
You can use this with any MCP-compatible client, including Claude, Cursor, Windsurf, and VS Code.
04
Can I use this to validate URLs?
Yes. The validate_pattern capability checks if a string perfectly matches the required format for a URL, email, or phone number.
05
Does this work with large text files?
Yes. The extract_pattern capability is designed to pull unique contact info from large bodies of text instantly.
06
Why use this instead of asking the AI to find the emails?
Because LLMs predict text probabilistically. They might miss emails embedded in weird characters (like contact@company.com. with a trailing dot) or hallucinate non-existent addresses. Regex provides mathematical certainty.
07
Does the PII masking send data to the cloud?
Never. The mask_sensitive_data capability runs exclusively on your local Javascript engine (V8). It acts as a local firewall, ensuring sensitive strings are redacted before any external processing happens.
08
What format of phone numbers are supported?
The regex captures international formats with country codes (e.g., +1, +55), optional parentheses for area codes, and spacing/hyphens commonly used globally.

Explore

More in Developer Tools

Connect Regex Toolkit to Claude, Cursor, ChatGPT & more

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

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-03

Extract pattern

Mask sensitive data

Validate pattern

What teams actually run

Support Ticket Processing

Data Sanitization

Input Verification

Automated Reporting

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

Regex Toolkit Connector

Claude Desktop

Data Engineers

Security Analysts

Software Developers

How does this prevent AI hallucinations?

Is my data safe when redacting PII?

Which AI clients can use this MCP?

Can I use this to validate URLs?

Does this work with large text files?

Why use this instead of asking the AI to find the emails?

Does the PII masking send data to the cloud?

What format of phone numbers are supported?

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