ReDoS is a Regular Expression Denial of Service. It happens when a regex pattern causes a matching engine to take an exponential amount of time to process a string, often freezing the application.

How does this MCP prevent event loop freezing?

It identifies patterns like nested quantifiers that trigger catastrophic backtracking, which is the primary cause of event loop freezes in Node.js.

Which clients can use this MCP?

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

Does this capability work with V8 engines?

Yes, it specifically looks for patterns that trigger backtracking in engines like V8.

Can I get specific instructions on how to fix my regex?

Yes, the generate_remediation_report capability provides specific guidance on how to refactor your patterns to avoid vulnerabilities.

How does the capability identify a vulnerability without executing the regex?

The detect_structural_features capability uses deterministic meta-parsing to inspect the string structure. It identifies hazardous constructs like nested quantifiers (e.g., (a+)+) by analyzing the arrangement of characters and symbols without actually attempting a match against a subject string, thus avoiding any risk of triggering the vulnerability itself.

What information is provided in the remediation report?

The generate_remediation_report capability provides a list of vulnerableSubstrings within your pattern and a recommendationString. This includes specific instructions on how to refactor the pattern, such as using non-capturing groups or atomic grouping, to eliminate backtracking risks.

Can I use this to evaluate the risk score of a pattern?

Yes, by using evaluate_security_posture, you can pass identified features to receive an isSafe boolean and a numerical riskScore. This score is calculated based on the frequency and severity of detected structural hazards like overlapping alternations.

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Connect Regex Redos Vulnerability Detector 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. Stop catastrophic backtracking from freezing your Node.js event loop.

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 ReDoS Detector.

01
Detect structural features
This capability scans your regex pattern to find specific structural vulnerabilities like nested quantifiers.
02
Generate remediation report
This capability produces a detailed report that explains how to fix the detected regex vulnerabilities.
03
Evaluate security posture
This capability assesses the overall security risk level of the regex features it finds.

Real work

What teams actually run

Pre-deployment Security Audits

Run your regex patterns through the agent to ensure no ReDoS risks reach production.

Node.js Performance Tuning

Identify patterns that cause high CPU usage and backtracking during heavy traffic.

Code Review Automation

Have your agent check pull requests for dangerous regex structures automatically.

Legacy Code Refactoring

Use the remediation reports to modernize old, inefficient regular expressions.

One connector, every AI

Regex ReDoS Detector 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 ReDoS Detector 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

559ms average. Fast in production.

Regex ReDoS Detector is checked daily against the live service.

Daily averagePeak 733ms

Oct 3Today

Fastest day: 488ms
Slowest day: 733ms
14-day trend: Improving-9%

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 ReDoS Detector, so you can see the experience inside your AI.

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

Regex ReDoS Detector Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_5XGokJ2Yzbf2uKL66VEDmLZLI4OWE943MqhKy7mw/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 ReDoS Detector capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "regex-redos-vulnerability-detector-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_5XGokJ2Yzbf2uKL66VEDmLZLI4OWE943MqhKy7mw/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 ReDoS Detector in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Regex ReDoS Detector owners hand off.

This MCP is built for developers working in environments where regex performance is critical.

01
Backend Developers
They hand off complex regex patterns to the agent to prevent Node.js event loop freezes.
02
Security Engineers
They use the agent to audit codebases for ReDoS vulnerabilities.
03
DevOps Engineers
They use the capability to ensure regex-heavy services remain stable under load.

FAQ

Questions Regex ReDoS Detector owners ask.

01
What is ReDoS?
ReDoS is a Regular Expression Denial of Service. It happens when a regex pattern causes a matching engine to take an exponential amount of time to process a string, often freezing the application.
02
How does this MCP prevent event loop freezing?
It identifies patterns like nested quantifiers that trigger catastrophic backtracking, which is the primary cause of event loop freezes in Node.js.
03
Which clients can use this MCP?
You can use this with any MCP-compatible client, including Claude, Cursor, Windsurf, and VS Code.
04
Does this capability work with V8 engines?
Yes, it specifically looks for patterns that trigger backtracking in engines like V8.
05
Can I get specific instructions on how to fix my regex?
Yes, the generate_remediation_report capability provides specific guidance on how to refactor your patterns to avoid vulnerabilities.
06
How does the capability identify a vulnerability without executing the regex?
The detect_structural_features capability uses deterministic meta-parsing to inspect the string structure. It identifies hazardous constructs like nested quantifiers (e.g., (a+)+) by analyzing the arrangement of characters and symbols without actually attempting a match against a subject string, thus avoiding any risk of triggering the vulnerability itself.
07
What information is provided in the remediation report?
The generate_remediation_report capability provides a list of vulnerableSubstrings within your pattern and a recommendationString. This includes specific instructions on how to refactor the pattern, such as using non-capturing groups or atomic grouping, to eliminate backtracking risks.
08
Can I use this to evaluate the risk score of a pattern?
Yes, by using evaluate_security_posture, you can pass identified features to receive an isSafe boolean and a numerical riskScore. This score is calculated based on the frequency and severity of detected structural hazards like overlapping alternations.

Explore

More in Security

Connect Regex ReDoS Detector 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

Detect structural features

Generate remediation report

Evaluate security posture

What teams actually run

Pre-deployment Security Audits

Node.js Performance Tuning

Code Review Automation

Legacy Code Refactoring

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

Regex ReDoS Detector Connector

Claude Desktop

Backend Developers

Security Engineers

DevOps Engineers

What is ReDoS?

How does this MCP prevent event loop freezing?

Which clients can use this MCP?

Does this capability work with V8 engines?

Can I get specific instructions on how to fix my regex?

How does the capability identify a vulnerability without executing the regex?

What information is provided in the remediation report?

Can I use this to evaluate the risk score of a pattern?

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