# User Agent Parser — Browser, OS, Device Detection

> User Agent Parser — Browser, OS, Device Detection — axel-belfort-user-agent-parser. Use this tool when you need to parse user agent strings into structured data for analytics, device targeting, or browser compatibility checks. It takes a user agent string as input and returns a JSON object containing browser, OS, device, rendering engine, and bot detection information. Ideal for use cases requiring device and browser insights, such as analytics processing, bot detection, and compatibility checks.

Canonical page: https://skillsregistry.net/skills/axel-belfort-user-agent-parser  
JSON: https://api.skillsregistry.net/v1/skills/axel-belfort-user-agent-parser

## Description

User agent string parser API for AI agents. Parse any user agent into structured data: browser (name, version), OS (name, version), device type (desktop/mobile/tablet), rendering engine, and bot detection.

Tools: utility_parse_user_agent.

Use this for analytics processing, bot detection, device targeting, or browser compatibility checks.

Returns: {browser, os, device, engine, isBot}. No API key required — x402 micropayment $0.001/call on Base L2.

## Trust

- **Trust score (0–1):** 0.73
- **Verification tier:** verified
- **Last scanned:** 2026-08-30

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** browser-automation
- **Updated:** 2026-08-30

## Source

- **Source listing:** [Smithery](https://smithery.ai/server/axel-belfort/user-agent-parser)
- **Repository:** <https://github.com/Br0ski777/user-agent-parser-x402>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "axel-belfort-user-agent-parser"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/axel-belfort-user-agent-parser` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/axel-belfort-user-agent-parser/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt