How to Use the UserStack User-Agent Lookup MCP in Windsurf

Q: Can I use UserStack User-Agent Lookup within a Windsurf workflow?

Absolutely. You can trigger detectuseragent as the very first step in any chain. This establishes environmental context for every subsequent action your agent takes.

Figure out what device hit your endpoint with Windsurf’s UserStack User-Agent Lookup.

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Connect UserStack User-Agent Lookup MCP to Windsurf

Create your Vinkius account to connect UserStack User-Agent Lookup to Windsurf 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 Windsurf

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Identify Device and Browser Details

The `detect_user_agent` tool reads any incoming User-Agent string. It tells you exactly what device, browser, and operating system made the request. This is critical for debugging or running A/B tests. Instead of guessing, Windsurf lets your agent know if the hit came from a mobile Safari or a desktop Chrome instance.

Contextual User-Agent Intelligence

Windsurf can use this data to decide what steps to take next. If the User-Agent points to an old Android version, your agent knows it needs to send a different payload than if it detects modern iOS. It helps you build smarter flows. Your multi-step plan doesn't break because the context tool flagged an unexpected client type.

MCP Server Integration for Frontend Logic

The `detect_user_agent` function lets your autonomous agent check the source of data before proceeding. You can write logic that only executes if the user is on a specific browser or OS. It’s better than simple regex checks. This MCP Server gives you structured, reliable information about the client environment.

Setup guide

Set up UserStack User-Agent Lookup MCP in Windsurf

Prerequisites

Windsurf IDE installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP configuration

Click the Cascade assistant icon in the sidebar, then click the hammer icon (🔨) at the top of the panel. Select "Configure" to open ~/.codeium/windsurf/mcp_config.json.
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

Refresh MCPs

Go back to the hammer icon (🔨) in Cascade and click "Refresh". Windsurf will detect the new server. No full restart is needed — the connection is hot-reloaded.
4

Verify in Cascade

Start a new Cascade conversation and ask something like "Show my UserStack User-Agent Lookup payment history." If connected, Cascade will call the UserStack User-Agent Lookup tools directly. You will see a green dot next to the server name in the MCP panel.

mcp_config.json

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

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Common questions about UserStack User-Agent Lookup MCP in Windsurf

It feeds clean device data directly into Cascade. If your goal is to check compatibility, the lookup tool confirms the client environment first. This prevents downstream failures in your multi-step plan.

Absolutely. You can trigger `detect_user_agent` as the very first step in any chain. This establishes environmental context for every subsequent action your agent takes.

It parses complex User-Agent strings into distinct, usable fields like OS type (e.g., Windows 10), device category (mobile/tablet), and specific browser name. This is structured intelligence.

Yes. The tool parses known patterns, so you get a predictable JSON object back every time. You can rely on it to accurately categorize the client environment.

This MCP Server touches the raw User-Agent string. It only parses this input into device and browser categories; it doesn't store or transmit any personally identifiable information.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

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