# Services from cr4vvol.vercel.app on Zero

> cr4vvol.vercel.app serves 24 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/cr4vvol.vercel.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/cr4vvol.vercel.app/health.json

## Services

- [Web Compare: Side-by-Side URL Comparison](https://www.zero.xyz/c/web-compare-side-by-side-url-comparison-4749a1e8/llms.txt): $0.05/call via x402. Fetches and compares the content of two web pages, returning a structured diff or comparison of their content
- [Crawl – Related Pages Finder](https://www.zero.xyz/c/crawl-related-pages-finder-ffdf957b/llms.txt): $0.02/call via x402. Given a URL, returns a list of related web pages discovered via web crawling, paid per-request in USDC
- [Crawl - Web Scraping via x402](https://www.zero.xyz/c/crawl-web-scraping-via-x402-b06d913d/llms.txt): $0.01/call via x402. Fetches and returns the content of a given URL for AI agents, billed per request in USDC via the x402 payment protocol
- [Web Crawl API (x402 Pay-Per-Request)](https://www.zero.xyz/c/web-crawl-api-x402-pay-per-request-598f9b5a/llms.txt): $0.1/call via x402. Crawls one or more pages starting from a seed URL and returns scraped web content, payable per request in USDC via x402.
- [Crawl – GitHub Search](https://www.zero.xyz/c/crawl-github-search-2a4f8b8e/llms.txt): $0.02/call via x402. Searches GitHub repositories, code, users, and issues using a query string, returning structured results via a pay-per-request model.
- [Crawl Headlines API](https://www.zero.xyz/c/crawl-headlines-api-23460738/llms.txt): $0.03/call via x402. Fetches news headlines for a given topic, paid per request in USDC via x402 protocol
- [Reddit Scraper via x402](https://www.zero.xyz/c/reddit-scraper-via-x402-d8f3f593/llms.txt): $0.02/call via x402. Fetches and parses content from a Reddit URL, returning structured data with no auth required — pay-per-request in USDC.
- [Substack Scraper via x402](https://www.zero.xyz/c/substack-scraper-via-x402-99774b19/llms.txt): $0.02/call via x402. Scrapes and extracts content from a Substack URL, returning structured data about the publication or post, paid per-request in USDC via x402.
- [Crawl Sitemap Fetcher](https://www.zero.xyz/c/crawl-sitemap-fetcher-aafc661c/llms.txt): $0.02/call via x402. Fetches and parses the sitemap of a given domain URL, returning structured site map data for AI agent use, paid per request via x402 in USDC.
- [Web Page Summarizer (cr4vvol)](https://www.zero.xyz/c/web-page-summarizer-cr4vvol-e15fbff8/llms.txt): $0.05/call via x402. Fetches and summarizes the content of a given URL, returning a concise text summary with optional length control.
- [Crawl Web Search API](https://www.zero.xyz/c/crawl-web-search-api-3df45cdf/llms.txt): $0.03/call via x402. Performs web search and scraping for AI agents, billed per request in USDC via x402 with no auth or subscription required
- [Web Archive Lookup](https://www.zero.xyz/c/web-archive-lookup-1c1a07ed/llms.txt): $0.02/call via x402. Retrieves a cached or archived version of a webpage for a given URL, paid per-request in USDC via x402.
- [Crawl Translate Endpoint](https://www.zero.xyz/c/crawl-translate-endpoint-1203bd92/llms.txt): $0.03/call via x402. Fetches a URL and translates its content into a specified target language, returning the translated web page data
- [Crawl – Web Extraction via x402](https://www.zero.xyz/c/crawl-web-extraction-via-x402-15e12388/llms.txt): $0.05/call via x402. Extracts structured content from a given URL, billed at $0.05 USDC per request via x402 with no authentication or subscription required.
- [Crawl Web Scraper (x402)](https://www.zero.xyz/c/crawl-web-scraper-x402-a9fca09e/llms.txt): $0.02/call via x402. Scrapes the content of a given URL and returns the extracted data, billed per-request in USDC via x402 with no auth required.
- [Claim Verification via Web Search](https://www.zero.xyz/c/claim-verification-via-web-search-a387f75b/llms.txt): $0.05/call via x402. Verifies a textual claim by searching and scraping the web, returning a structured result indicating whether the claim is supported
- [Crawl Web Metadata Analyzer](https://www.zero.xyz/c/crawl-web-metadata-analyzer-5e374676/llms.txt): $0.01/call via x402. Fetches and analyzes metadata from a given URL for AI agents, paid per request via USDC x402
- [Feed Discovery via URL](https://www.zero.xyz/c/feed-discovery-via-url-4950382e/llms.txt): $0.02/call via x402. Discovers and extracts RSS/Atom/podcast feed URLs from a given web page URL
- [Crawl - Link Extractor](https://www.zero.xyz/c/crawl-link-extractor-04665d87/llms.txt): $0.02/call via x402. Extracts all hyperlinks from a given URL using a pay-per-request web scraping service
- [Stock Financial Query API](https://www.zero.xyz/c/stock-financial-query-api-8baa3ba9/llms.txt): $0.05/call via x402. Accepts a natural language financial query and returns stock market data or financial information via a pay-per-request model using USDC.
- [Domain Lookup via Crawl API](https://www.zero.xyz/c/domain-lookup-via-crawl-api-568d187c/llms.txt): $0.02/call via x402. Fetches and returns scraped web data for a given domain name, paid per-request in USDC via x402 protocol
- [Currency Rate Lookup (cr4vvol)](https://www.zero.xyz/c/currency-rate-lookup-cr4vvol-a95b993e/llms.txt): $0.01/call via x402. Converts or looks up the exchange rate between two currencies via a pay-per-request API using USDC x402 payments.
- [Weather Lookup API (cr4vvol)](https://www.zero.xyz/c/weather-lookup-api-cr4vvol-7857a088/llms.txt): $0.01/call via x402. Returns weather data for a given location name, paid per request via x402 USDC micropayment.
- [Crawl Web Scraper (x402)](https://www.zero.xyz/c/crawl-web-scraper-x402-b3adb0d1/llms.txt): $0.02/call via x402. Scrapes and checks a given URL, returning extracted web data, with payment handled per-request via x402 in USDC

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

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