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Connect Userstack User Agent Lookup 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. Turn messy UA strings into structured device and browser data.

Ask AI about this Connector

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.

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 UserStack.

  1. 01

    Detect user agent

    This capability parses a User-Agent string to identify the specific device, browser, and operating system being used.

Real work

What teams actually run

01

Web Traffic Auditing

Your agent analyzes logs to see which browsers and OS versions your users prefer.

02

Bot Identification

You check specific User-Agents to see if they are legitimate search engine crawlers.

03

Device Debugging

Developers use the agent to confirm the exact device profile of a reported error.

04

Security Monitoring

Operations teams use the agent to flag unusual or suspicious device signatures in logs.

Automate a task

Put UserStack 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

UserStack 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 UserStack 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

830ms average. Fast in production.

UserStack is checked daily against the live service.

Daily averagePeak 960ms
Oct 3Today
Fastest day
701ms
Slowest day
960ms
14-day trend
Stable+4%

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 UserStack, so you can see the experience inside your AI.

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

UserStack Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_C73gpXQc76w4GftWbngd8wPaY3sHJgU9EsWqwUY7/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 — UserStack capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "userstack-user-agent-lookup-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_C73gpXQc76w4GftWbngd8wPaY3sHJgU9EsWqwUY7/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 UserStack in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work UserStack owners hand off.

This MCP is built for technical professionals who need to analyze web traffic and client environments.

  • 01

    Web Developers

    They hand off User-Agent strings to the agent to debug device-specific rendering issues.

  • 02

    Security Analysts

    They use the agent to scan web logs for suspicious bot activity or unauthorized agents.

  • 03

    Digital Marketers

    They ask the agent to profile the technology used by their website visitors.

FAQ

Questions UserStack owners ask.

  • 01

    How do I use this MCP with my AI client?

    You connect once through Vinkius to your client like Claude, Cursor, or Windsurf. Once connected, your agent can immediately use the capabilities provided by the MCP.

  • 02

    Do I need my own UserStack account?

    Yes, you will need to enter your UserStack Access Key to authenticate the connection.

  • 03

    Can this MCP detect if a request is a bot?

    Yes, the agent can identify if a User-Agent string belongs to a human user or a search engine crawler.

  • 04

    What kind of device data can I get?

    The agent can identify device types like mobile or desktop, as well as specific brands and models.

  • 05

    Where do I get a UserStack Access Key?

    You can obtain an access key directly from userstack.com.

  • 06

    Can I identify if a user is on an iPhone?

    Yes! Use the detect_user_agent capability. The response will include the device brand ('Apple') and the specific model or type if available in the UA string.

  • 07

    Does this server detect search engine bots?

    Yes. The underlying API identifies known crawlers like Googlebot or Bingbot. The agent will explicitly state if the detected agent is a crawler.

  • 08

    Can I parse multiple User-Agents at once?

    Currently, the detect_user_agent capability processes one string per call. You can ask your AI agent to perform sequential checks for a list of strings.

Explore

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