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Connect Public Suffix Extractor to ChatGPT and Claude

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 guessing TLDs and parse hostnames with total accuracy.

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.

A futuristic MCP client docking bay
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 · 1 capability

We ship only the actions that matter.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through psl.

  1. 01

    Extract domain

    This capability uses the Mozilla Public Suffix List to pull the true root domain, TLD, subdomain, and SLD from any hostname. It correctly identifies complex suffixes like .com.br or .org.au that usually confuse LLMs.

Real work

What teams actually run

01

URL Normalization

Clean up large lists of URLs by extracting the primary registrable domain.

02

Web Scraping Logic

Help your agent understand the hierarchy of a site before it starts crawling.

03

Traffic Attribution

Correctly group subdomains under their true parent domains for cleaner analytics.

04

Domain Classification

Distinguish between private registrable domains and public cloud infrastructure suffixes.

Automate a task

Put psl 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

psl 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 psl 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

1485ms average. Fast in production.

psl is checked daily against the live service.

Daily averagePeak 1923ms
Oct 3Today
Fastest day
1146ms
Slowest day
1923ms
14-day trend
Improving-21%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 1 capability arrives 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 psl, so you can see the experience inside your AI.

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

psl Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_LmUqJapaOSRBG8u0znMC3iVKUNjgZCM8mbyDzszm/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 — psl capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "public-suffix-extractor-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_LmUqJapaOSRBG8u0znMC3iVKUNjgZCM8mbyDzszm/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 psl in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work psl owners hand off.

This is for developers and data professionals who need their AI agents to handle real-world web data without errors.

  • 01

    Data Engineers

    They hand off messy URL datasets to an agent to normalize domain structures.

  • 02

    Analytics Engineers

    They use it to ensure traffic sources are grouped by the correct root domains.

  • 03

    Security Researchers

    They use it to accurately parse hostnames during domain analysis tasks.

FAQ

Questions psl owners ask.

  • 01

    How does this MCP handle .co.uk domains?

    It uses the Mozilla Public Suffix List to recognize .co.uk as the TLD, rather than just .uk.

  • 02

    What happens with cloud domains like s3.amazonaws.com?

    The capability identifies the cloud suffix correctly, distinguishing the registrable domain from the provider's suffix.

  • 03

    Which AI clients can use this MCP?

    Any MCP-compatible client like Claude, Cursor, or Windsurf can use it.

  • 04

    Is the data source reliable?

    Yes, it uses the official Public Suffix List maintained by Mozilla.

  • 05

    Do I need to host this myself?

    No, Vinkius hosts and manages the MCP for you.

  • 06

    Why can't I just split the domain by dots?

    Because TLDs like .co.uk, .com.br, and .org.au have multiple parts. Splitting by dots would incorrectly identify the root domain. The PSL has 9,000+ entries.

  • 07

    Does it handle cloud provider domains?

    Yes. Domains like .amazonaws.com, .azurewebsites.net, and *.cloudfront.net are in the PSL and handled correctly.

  • 08

    Can I pass a full URL with protocol and path?

    Yes. The engine automatically strips the protocol (http/https), path, and query parameters before parsing.

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