How to Use the UserStack User-Agent Lookup MCP in Claude Code

Run environment checks in CI/CD pipelines with Claude Code’s UserStack User-Agent Lookup MCP Server.

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Connect UserStack User-Agent Lookup MCP to Claude Code

Create your Vinkius account to connect UserStack User-Agent Lookup to Claude Code and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup UserStack User-Agent Lookup with Claude Code

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Headless Client Environment Detection

The `detect_user_agent` tool executes entirely from the command line. It takes a User-Agent string and outputs structured data about the device, browser, and OS. This is perfect for CI/CD scripts that need to validate compatibility without spinning up a GUI.

MCP Server for Pipeline Validation

Use this MCP Server in a script block before deploying. It verifies the target environment's capabilities against your application's requirements. Your pipeline can fail early if the detected client type is unsupported, saving build time and headaches.

Scripting with User-Agent Data

You pipe the output of `detect_user_agent` into subsequent shell logic. This lets your cron job or Docker container make decisions based on client data. Instead of hardcoding values, you use the runtime context provided by this MCP Server.

Setup guide

Set up UserStack User-Agent Lookup MCP in Claude Code

Prerequisites

Claude Code CLI installed (npm install -g @anthropic-ai/claude-code)
Active Vinkius subscription with a valid endpoint token

1

Run the add command

Open your terminal and run the command shown on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com. Use --scope user to make it available across all projects.
2

Verify the connection

Start a Claude Code session and type /mcp to list connected servers. You should see userstack-user-agent-lookup-mcp with a green status indicator.
3

Start using tools

Ask Claude Code something like "Check my latest UserStack User-Agent Lookup transactions." It will automatically discover and invoke the available UserStack User-Agent Lookup tools.

Terminal

claude mcp add --transport http userstack-user-agent-lookup-mcp https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

Get your connection token →

Prerequisites

Claude Code CLI installed
Active Vinkius subscription with a valid endpoint token

1

Open the config file

Create or edit .mcp.json in your project root for project-level scope, or ~/.claude.json for user-level scope.
2

Add the UserStack User-Agent Lookup MCP

Paste the JSON snippet shown on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Code

Start a new Claude Code session. Type /mcp to confirm the server is connected. The tools will be automatically available in your conversation.

.mcp.json

{
  "mcpServers": {
    "userstack-user-agent-lookup-mcp": {
      "type": "url",
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

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Common questions about UserStack User-Agent Lookup MCP in Claude Code

You call it as a simple command line function within your script. The output is standard JSON, making it easy to parse and use in subsequent shell commands.

Because the tool only requires an input string and returns a predictable data structure over stdio or HTTP. There’s no GUI dependency, keeping your workflow clean and terminal-native.

You can wrap the tool call in a simple loop structure within your script. This allows you to batch process detection results for testing purposes.

It gives structured details on device, browser version, and OS architecture. You get reliable context that goes far beyond simple string matching.

This MCP Server touches the raw User-Agent string. The output is an analysis of this string, detailing device and browser characteristics for auditing purposes.

Use it with your favorite AI tools

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