Can I identify if a user is on an iPhone?

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

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.

Can I parse multiple User-Agents at once?

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

UserStack User-Agent Lookup MCP Server for Mastra AI 1 tools — connect in under 2 minutes

Name: UserStack User-Agent Lookup
Availability: InStock
Author: Vinkius

docs.mastra.ai/docs/agents/mcp-tools

Built by Vinkius GDPR 1 Tools SDK

Mastra AI is a TypeScript-native agent framework built for modern web stacks. Connect UserStack User-Agent Lookup through Vinkius and Mastra agents discover all tools automatically. type-safe, streaming-ready, and deployable anywhere Node.js runs.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

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Vinkius supports streamable HTTP and SSE.

typescript

import { Agent } from "@mastra/core/agent";
import { createMCPClient } from "@mastra/mcp";
import { openai } from "@ai-sdk/openai";

async function main() {
  // Your Vinkius token. get it at cloud.vinkius.com
  const mcpClient = await createMCPClient({
    servers: {
      "userstack-user-agent-lookup": {
        url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
      },
    },
  });

  const tools = await mcpClient.getTools();
  const agent = new Agent({
    name: "UserStack User-Agent Lookup Agent",
    instructions:
      "You help users interact with UserStack User-Agent Lookup " +
      "using 1 tools.",
    model: openai("gpt-4o"),
    tools,
  });

  const result = await agent.generate(
    "What can I do with UserStack User-Agent Lookup?"
  );
  console.log(result.text);
}

main();

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About UserStack User-Agent Lookup MCP Server

Equip your AI agent with real-time browser and device intelligence through the UserStack MCP server. This integration provides instant parsing of User-Agent strings to identify the device type (mobile, desktop, tablet), brand, operating system, and browser version. Your agent can also detect crawlers and bots with high precision. Whether you are auditing web traffic, personalizing user experiences, or researching device distributions, your agent acts as a dedicated technical analyst through natural conversation.

Mastra's agent abstraction provides a clean separation between LLM logic and UserStack User-Agent Lookup tool infrastructure. Connect 1 tools through Vinkius and use Mastra's built-in workflow engine to chain tool calls with conditional logic, retries, and parallel execution. deployable to any Node.js host in one command.

What you can do

UA Parsing — Decode complex User-Agent strings into structured device and browser data.
Bot Detection — Identify if a request is coming from a human user or a search engine crawler.
Technical Auditing — Verify the OS and browser capabilities of specific web clients.
Device Profiling — Retrieve brand and model information for mobile and desktop systems.

The UserStack User-Agent Lookup MCP Server exposes 1 tools through the Vinkius. Connect it to Mastra AI in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect UserStack User-Agent Lookup to Mastra AI via MCP

Follow these steps to integrate the UserStack User-Agent Lookup MCP Server with Mastra AI.

Install dependencies

Run npm install @mastra/core @mastra/mcp @ai-sdk/openai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save to agent.ts and run with npx tsx agent.ts

Explore tools

Mastra discovers 1 tools from UserStack User-Agent Lookup via MCP

Why Use Mastra AI with the UserStack User-Agent Lookup MCP Server

Mastra AI provides unique advantages when paired with UserStack User-Agent Lookup through the Model Context Protocol.

Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add UserStack User-Agent Lookup without touching business code

Built-in workflow engine chains MCP tool calls with conditional logic, retries, and parallel execution for complex automation

TypeScript-native: full type inference for every UserStack User-Agent Lookup tool response with IDE autocomplete and compile-time checks

One-command deployment to any Node.js host. Vercel, Railway, Fly.io, or your own infrastructure

UserStack User-Agent Lookup + Mastra AI Use Cases

Practical scenarios where Mastra AI combined with the UserStack User-Agent Lookup MCP Server delivers measurable value.

Automated workflows: build multi-step agents that query UserStack User-Agent Lookup, process results, and trigger downstream actions in a typed pipeline

SaaS integrations: embed UserStack User-Agent Lookup as a first-class tool in your product's AI features with Mastra's clean agent API

Background jobs: schedule Mastra agents to query UserStack User-Agent Lookup on a cron and store results in your database automatically

Multi-agent systems: create specialist agents that collaborate using UserStack User-Agent Lookup tools alongside other MCP servers

UserStack User-Agent Lookup MCP Tools for Mastra AI (1)

These 1 tools become available when you connect UserStack User-Agent Lookup to Mastra AI via MCP:

detect_user_agent

Identify device and browser from User-Agent

Example Prompts for UserStack User-Agent Lookup in Mastra AI

Ready-to-use prompts you can give your Mastra AI agent to start working with UserStack User-Agent Lookup immediately.

"Detect this User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36"

"Is this a bot? 'Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)'"

"Identify the device brand for this UA: 'Mozilla/5.0 (iPhone; CPU iPhone OS 14_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.1 Mobile/15E148 Safari/604.1'"