# Services from nock-opal.vercel.app on Zero

> nock-opal.vercel.app 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/nock-opal.vercel.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/nock-opal.vercel.app/health.json

## Services

- [Nock Web Fetch & Brief](https://www.zero.xyz/c/nock-web-fetch-brief-7994c636/llms.txt): $0.05/call via x402. Fetches a given URL and returns an AI-generated brief summarizing what matters on that page
- [Nock Brief Generator](https://www.zero.xyz/c/nock-brief-generator-3a8b7bef/llms.txt): $0.25/call via x402. Transforms source text into a structured three-section brief (What Matters, What's Decided, What's Next) delivered by a disclosed AI agent
- [Nock Text Extraction](https://www.zero.xyz/c/nock-text-extraction-805a56fd/llms.txt): $0.05/call via x402. Extracts structured key-value entities (date, owner, seller, decision) from unstructured source text
- [Nock Action Extractor](https://www.zero.xyz/c/nock-action-extractor-cc65b5b8/llms.txt): $0.5/call via x402. Extracts a concrete next action from source text, returning a clear actionable step and the AI agent seller identity

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)