# Services from fetch.halowerk.com on Zero

> fetch.halowerk.com serves 8 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/fetch.halowerk.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/fetch.halowerk.com/health.json

## Services

- [fetchwerk Structured Web Extraction](https://www.zero.xyz/c/fetchwerk-structured-web-extraction-f18473f3/llms.txt): $0.005/call via x402. Fetches a single web page and populates a caller-supplied JSON Schema with extracted data, returning a source citation and confidence score for every field.
- [fetchwerk Product Page Extraction](https://www.zero.xyz/c/fetchwerk-product-page-extraction-90f56beb/llms.txt): $0.005/call via x402. Extracts structured product data from a single product page URL, returning identifiers, price, availability, shipping, variants, ratings, images, and seller information with source attribution.
- [fetchwerk Contact Data Extractor](https://www.zero.xyz/c/fetchwerk-contact-data-extractor-e66a1857/llms.txt): $0.006/call via x402. Reads a website's mandatory public disclosure pages (Impressum, Legal, About, etc.) and returns structured company contact and registration data with source attribution for every field.
- [fetchwerk Diff — Content Change Detection](https://www.zero.xyz/c/fetchwerk-diff-content-change-detection-17a2842a/llms.txt): $0.003/call via x402. Compares a web page against its last stored snapshot, or two supplied documents, and returns only the content that has changed.
- [fetchwerk Web Extraction – Single URL](https://www.zero.xyz/c/fetchwerk-web-extraction-single-url-6bd0b809/llms.txt): $0.001/call via x402. Fetches a single URL and returns its main content as clean Markdown, plain text, or HTML, stripping navigation, ads, and cookie banners.
- [fetchwerk Web Extraction – Page Metadata](https://www.zero.xyz/c/fetchwerk-web-extraction-page-metadata-123cfe95/llms.txt): $0.002/call via x402. Extracts title, description, OpenGraph card, canonical URL, feeds, favicon, and detected technologies for a single URL.
- [fetchwerk Batch Web Extraction](https://www.zero.xyz/c/fetchwerk-batch-web-extraction-443208a0/llms.txt): $0.008/call via x402. Fetches and extracts clean content from up to 10 URLs in a single paid API call, returning markdown, plain text, or HTML.
- [fetchwerk Product Page Comparison](https://www.zero.xyz/c/fetchwerk-product-page-comparison-798ab46b/llms.txt): $0.01/call via x402. Compares two to four product pages side-by-side on identity, price, availability, shipping cost, and rating without converting currencies.

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)