
Connect System Prompt Leakage Detec (Alternative) 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 your AI agents from leaking sensitive instructions.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
Waiting for input…
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.

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.
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.
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.
01-03
3 capabilities in this set.
Part of 3 available through System Prompt Leakage Detector.
- 01
Analyze leakage density
This capability checks if leaked text is scattered throughout an output or concentrated in specific sections.
- 02
Detect leakage
This capability scans agent responses for verbatim repetitions of the system prompt and calculates a risk score.
- 03
Get risk classification
This capability converts raw security scores into clear severity levels for your security reports.
Real work
What teams actually run
Prompt Injection Auditing
Test if your agent's guardrails hold up against users trying to extract system rules.
Security Reporting
Generate clear severity reports based on real leakage scores for compliance teams.
Agent Robustness Testing
Measure how much of your core logic is exposed during standard user interactions.
Automated Monitoring
Run checks on agent outputs to catch instruction exfiltration in real time.
One connector, every AI
System Prompt Leakage 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.
Claude
ChatGPT
Gemini
Perplexity
Grok
Microsoft Copilot
Cursor
VS Code
Windsurf
JetBrains
Cline
LangChain
Vercel AI SDK
Lovable
Z.ai
Raycast
Qwen Code
Kimi Code
Le ChatBuilding your own app? The connector is yours to use.
You don't need a client to put System Prompt Leakage 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
734ms average. Fast in production.
System Prompt Leakage Detector is checked daily against the live service.
- Fastest day
- 646ms
- Slowest day
- 938ms
- 14-day trend
- Improving-14%
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 System Prompt Leakage Detector, so you can see the experience inside your AI.
It does not authenticate your account with System Prompt Leakage Detector. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
System Prompt Leakage Detector Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_yMAsL4yWDRbK69R8LLTjB0GTLTzNpZnBPICtwOyQ/mcpClaude 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 — System Prompt Leakage Detector capabilities are ready to use.
{
"mcpServers": {
"system-prompt-leakage-detector-alternative-mcp": {
"url": "https://edge.vinkius.com/vk_preview_yMAsL4yWDRbK69R8LLTjB0GTLTzNpZnBPICtwOyQ/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 System Prompt Leakage Detector in Claude and other AIs
Who it's for
Built for the work System Prompt Leakage Detector owners hand off.
This MCP is built for security teams and AI developers who need to audit agent behavior.
- 01
AI Security Engineers
They use this to audit agent outputs for prompt injection and exfiltration.
- 02
LLM Developers
They use it to test the robustness of their system prompts during development.
- 03
Red Teamers
They use it to quantify the success of their prompt leakage attacks.
FAQ
Questions System Prompt Leakage Detector owners ask.
- 01
How does this MCP detect prompt leakage?
It uses Longest Common Substring (LCS) algorithms to find verbatim matches between the system prompt and the agent's output.
- 02
What clients can I use this with?
You can use this with any MCP-compatible client, including Claude, Cursor, and Windsurf.
- 03
Can I see exactly where the prompt was leaked?
Yes, the capability identifies the specific character offsets of the leaked text.
- 04
How is risk severity determined?
The capability takes a raw security risk score and maps it to a human-readable severity level.
- 05
Does this MCP host the data?
Yes, Vinkius hosts the MCP and manages the execution so you can connect and use it instantly.
- 06
How does the capability detect leakage?
The detect_leakage capability uses exact substring matching to find continuous sequences of characters in the agent's output that are identical to the original system prompt.
- 07
What is a Security Risk Score?
It is a weighted evaluation where the score increases if the leaked segments contain sensitive keywords defined in your security configuration.
- 08
Can I see where the leak happened?
Yes, the capability returns exact character offsets for every contiguous leaked block found in the output.
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Connect System Prompt Leakage Detector to Claude, Cursor, ChatGPT & more
