User Agent Parser API
io.github.Br0ski777Published by GitHub account Br0ski777v1.1.0Updated Oct 24, 2026
Parse user agents — browser, OS, device, bot detection. x402 micropayment.
The publisher's own server: Parser Club
Overview
Remote MCP endpoint that parses a user agent string into browser, OS, device, engine and bot-detection fields, paid per call via x402.
- What you can do
- Parse a user agent string into structured data: browser name and version, OS, device type, engine, and bot status with bot name.
- Returns a single JSON object suitable for classifying traffic in analytics pipelines or access logs.
- When to use it
- Useful when an assistant needs to classify traffic by browser, OS or device, detect bot traffic in access logs, or adapt content to client capabilities, and a paid per-call lookup is acceptable.
- Requirements
- A remote MCP endpoint reached over SSE; no API key or signup. Calls are paid per request in USDC on Base L2 through the x402 protocol, so an x402-aware client and a funded wallet are needed to complete the payment challenge.
Installation
In SourceWeft
- Open User Agent Parser API in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Web executable via SSE. Remote servers run from the web runtime once configured in a workspace.
Use with an agent
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.github.Br0ski777%2Fuser-agent-parser/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Other MCP clients
Add this to your client's mcpServers config.
{
"mcpServers": {
"user-agent-parser-api": {
"type": "sse",
"url": "https://user-agent-parser.api.klymax402.com/mcp"
}
}
}README
User Agent Parser API
[MCP Server] [x402] [License: MIT]
Parse any user agent string into structured data: browser, OS, device type, engine, and bot detection in one call. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.
Quickstart -- MCP
Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):
Quickstart -- HTTP (x402)
Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.
Tools
utility_parse_user_agent
Use this when you need to parse a user agent string to identify the client's browser, OS, device type, and bot status. Returns fully structured data.
Parameters
Example response:
When to use: analytics pipelines that need to classify traffic by device or browser, detecting bot traffic in access logs, or adapting content based on client capabilities.
Not for: HTTP header analysis (use utility_parse_http_headers), web scraping (use web_scrape_to_markdown), SEO auditing (use seo_audit_page).
Example agent prompts
- "Parse a user agent string to identify the client's browser, OS, device type, and bot status"
Payment
- Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
- Network: Base L2 (
eip155:8453) - Asset: USDC
- Facilitator: Coinbase CDP (primary), PayAI (fallback)
- Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)
Part of klymax402
100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.
- Catalog: https://klymax402.com/llms.txt
- Full API reference: https://klymax402.com/llms-full.txt
- Live stats: https://klymax402.com/stats
License
MIT
Source: README.md at commit 7792551
Tools
0Version history
1- v1.1.0LatestSep 16, 2026
Score
50% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 daysRequired25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
- Auth declaredRequired10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
- License10 pts
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