# Services from useragent.openverbs.com on Zero

> useragent.openverbs.com serves 3 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/useragent.openverbs.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/useragent.openverbs.com/health.json

## Services

- [User-Agent Parser](https://www.zero.xyz/c/user-agent-parser-aad09af7/llms.txt): $0.002/call via x402. Parses a User-Agent header string and returns structured device, browser, and OS information
- [User-Agent Classifier](https://www.zero.xyz/c/user-agent-classifier-09ef8d8b/llms.txt): $0.002/call via x402. Classifies a User-Agent header string to identify the browser, OS, device type, or bot behind an HTTP request
- [User-Agent Bot Detection](https://www.zero.xyz/c/user-agent-bot-detection-04a5467d/llms.txt): $0.002/call via x402. Detects whether a given User-Agent header string belongs to a bot or automated client

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)