# Services from url.openverbs.com on Zero

> url.openverbs.com serves 4 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/url.openverbs.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/url.openverbs.com/health.json

## Services

- [URL Normalizer (OpenVerbs)](https://www.zero.xyz/c/url-normalizer-openverbs-6cd755c1/llms.txt): $0.002/call via x402. Canonicalizes a URL by lowercasing the host, resolving dot-segments, dropping default ports, sorting query parameters, and optionally removing fragments or trailing slashes.
- [URL Reference Resolver (RFC 3986)](https://www.zero.xyz/c/url-reference-resolver-rfc-3986-6cd1b378/llms.txt): $0.002/call via x402. Resolves a relative or absolute URL reference against an absolute base URL following RFC 3986 semantics
- [URL Query String Parser & Builder](https://www.zero.xyz/c/url-query-string-parser-builder-2170045f/llms.txt): $0.002/call via x402. Bidirectional query string utility: parse a query string into a key-value object (collapsing repeated keys into arrays) or encode a params object back into a query string (with optional alphabetical key sorting).
- [URL Parser (WHATWG)](https://www.zero.xyz/c/url-parser-whatwg-830bf9ad/llms.txt): $0.002/call via x402. Parses an absolute URL string into its WHATWG-standard components including protocol, credentials, host, port, origin, pathname, path segments, query object, and hash.

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)