UAParse MCP Server

by workers-mike-tusa-uaparse Your server? Claim it

answering

UAParse is answering right now. Last checked 6 min ago. It exposes 1 tools.

Parse a User-Agent: browser, OS, device, plus bot, search crawler, AI crawler and AI agent flags.

Uptime history 8 days of history

8 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

60 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 3

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 15 October 2026. No other catalogue keeps this.

16 Oct a tool changed version2 times that day

15 Oct a tool changed version

and 1 more, back to 15 October 2026

Nothing serious here today

Today is the operative word: we check UAParse every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add uaparse --transport http https://uaparse.mike-tusa.workers.dev/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "uaparse": {
      "url": "https://uaparse.mike-tusa.workers.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.uaparse]
url = "https://uaparse.mike-tusa.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "uaparse": {
      "url": "https://uaparse.mike-tusa.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "uaparse": {
      "url": "https://uaparse.mike-tusa.workers.dev/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

parse

parse_user_agent

Parse one User-Agent string. Returns browser, engine, OS, device type and CPU (ua-parser-js 1.0.41), and whether it is a known bot, search crawler, AI crawler (with its AI purpose) or an AI agent acting for a user (is_ai_agent, ai_agent_kind fetch | browsing), plus the bot name, operator, robots.txt token and operator docs link from a curated list of 151 bots (list 2026-10-08). verified is always false: the User-Agent is self-reported and UAParse does no IP or reverse-DNS checks. Read-only, no network lookups. Same engine and limits as the UAParse JSON API (POST /v1/parse); each call is one lookup. UAParse is independent and not affiliated with Meta, OpenAI, Google, Anthropic, Amazon, Perplexity or Mistral AI.

Endpoints

URL	Transport	State	Latency	Checked
https://uaparse.mike-tusa.workers.dev/mcp	streamable-http	answering	55 ms	6 min ago

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UAParse — questions

Answers built from our own checks of this server.

What can UAParse do?

It exposes 1 tools, read directly from the server on our last check. Among them: parse_user_agent. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is UAParse working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 60 ms. The bar chart above shows every period we have measured.

How do I connect UAParse?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does UAParse need an API key?

No. UAParse completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is UAParse?

It answers our handshake in 60 ms on average, which is faster than 93% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.