# Services from well-009-url-change-watch.mmelnyk2000.workers.dev on Zero

> well-009-url-change-watch.mmelnyk2000.workers.dev serves 2 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/well-009-url-change-watch.mmelnyk2000.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/well-009-url-change-watch.mmelnyk2000.workers.dev/health.json

## Services

- [URL Change Watch — SHA-256 Body Diff Checker](https://www.zero.xyz/c/url-change-watch-sha-256-body-diff-checker-ee1b58c3/llms.txt): $0.01/call via x402. Fetches a public HTTPS URL, computes the SHA-256 hash of the response body, and reports whether the content has changed compared to a previously recorded hash or ETag.
- [URL Change Watch](https://www.zero.xyz/c/url-change-watch-cbc694fc/llms.txt): $0.01/call via x402. Fetches a public HTTPS URL, computes a SHA-256 hash of the response body, and reports whether the content has changed compared to a previously known hash or ETag.

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)