# Services from cerwal.vercel.app on Zero > cerwal.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/cerwal.vercel.app Live health (JSON, refreshed every minute): https://www.zero.xyz/host/cerwal.vercel.app/health.json ## Services - [Cerwal URL Summarize](https://www.zero.xyz/c/cerwal-url-summarize-db0d3f57/llms.txt): $0.25/call via x402. Fetches and summarizes the content of a given URL, returning a condensed text summary, paid per request via USDC x402 - [Cerwal Substack Scraper](https://www.zero.xyz/c/cerwal-substack-scraper-928aec37/llms.txt): $0.02/call via x402. Fetches and extracts content from a Substack publication URL, returning structured post or profile data. - [Cerwal Headlines API](https://www.zero.xyz/c/cerwal-headlines-api-8e7a053d/llms.txt): $0.03/call via x402. Fetches current news headlines for a given topic, paid per-request in USDC via x402 - [Cerwal Link Extractor](https://www.zero.xyz/c/cerwal-link-extractor-71fc9d14/llms.txt): $0.15/call via x402. Extracts all hyperlinks from a given URL via pay-per-request web scraping - [Cerwal Related Pages Finder](https://www.zero.xyz/c/cerwal-related-pages-finder-d0926c51/llms.txt): $0.02/call via x402. Given a URL, finds and returns a list of related web pages for AI agent research and discovery - [Reddit Scraper via Cerwal](https://www.zero.xyz/c/reddit-scraper-via-cerwal-b32415be/llms.txt): $0.02/call via x402. Fetches and extracts structured data from a given Reddit URL, returning post content, comments, or subreddit information. - [Cerwal Web Page Reader](https://www.zero.xyz/c/cerwal-web-page-reader-7cceb63d/llms.txt): $0.15/call via x402. Fetches and returns the content of a given URL for AI agents, paid per-request via USDC x402 - [Cerwal Web Search API](https://www.zero.xyz/c/cerwal-web-search-api-86e53d1b/llms.txt): $0.2/call via x402. Performs a web search and returns results for a given query, payable per request in USDC via x402 with no auth or subscription required. - [Cerwal Web Extract](https://www.zero.xyz/c/cerwal-web-extract-c10fb763/llms.txt): $0.25/call via x402. Scrapes and extracts content from a given URL, paid per-request in USDC via x402 with no authentication required - [Cerwal GitHub Search](https://www.zero.xyz/c/cerwal-github-search-f1c9f3ba/llms.txt): $0.02/call via x402. Searches GitHub repositories, code, issues, and users using a query string, returning structured results via pay-per-request x402 micropayment. - [Cerwal Feed Finder](https://www.zero.xyz/c/cerwal-feed-finder-05f07385/llms.txt): $0.15/call via x402. Discovers and returns RSS/Atom feed URLs found at a given web page URL - [Cerwal Web Scraper](https://www.zero.xyz/c/cerwal-web-scraper-e5cd40f3/llms.txt): $0.15/call via x402. Scrapes the content of a given URL and returns structured data, with pay-per-request pricing via x402/USDC - [Cerwal Web Crawler](https://www.zero.xyz/c/cerwal-web-crawler-c1724df6/llms.txt): $0.3/call via x402. Crawls and scrapes web pages starting from a seed URL, returning page content for AI agent use, paid per-request in USDC via x402. - [Cerwal URL Comparison](https://www.zero.xyz/c/cerwal-url-comparison-7c321a43/llms.txt): $0.25/call via x402. Fetches and compares the content of two web pages side by side, returning a structured diff or summary of differences - [Cerwal Web Metadata Crawler](https://www.zero.xyz/c/cerwal-web-metadata-crawler-3da9b39b/llms.txt): $0.15/call via x402. Fetches and analyzes metadata from a given URL for AI agents, paid per request via x402/USDC - [Cerwal Sitemap Fetcher](https://www.zero.xyz/c/cerwal-sitemap-fetcher-e50c3680/llms.txt): $0.15/call via x402. Fetches and parses the sitemap of a given domain URL, returning structured site structure data for AI agents - [Cerwal Claim Verifier](https://www.zero.xyz/c/cerwal-claim-verifier-9a454086/llms.txt): $0.05/call via x402. Verifies a claim against web sources by crawling and searching the web, returning a verification result - [Cerwal Archive URL Lookup](https://www.zero.xyz/c/cerwal-archive-url-lookup-6b114d3a/llms.txt): $0.02/call via x402. Retrieves a web archive (cached/historical version) of a given URL, pay-per-request via USDC - [Cerwal Domain Lookup](https://www.zero.xyz/c/cerwal-domain-lookup-1dfe050f/llms.txt): $0.02/call via x402. Fetches scraped web data and information for a given domain name, payable per request in USDC via x402. - [Cerwal Web Page Translator](https://www.zero.xyz/c/cerwal-web-page-translator-a2576962/llms.txt): $0.03/call via x402. Fetches a web page at a given URL and translates its content into a specified target language, returning the translated data. - [Cerwal Stock Financial Query API](https://www.zero.xyz/c/cerwal-stock-financial-query-api-88a97422/llms.txt): $0.05/call via x402. Accepts a natural language or structured financial query and returns stock/financial data, paid per request in USDC via x402. - [Cerwal Currency Rate Lookup](https://www.zero.xyz/c/cerwal-currency-rate-lookup-276e512e/llms.txt): $0.01/call via x402. Converts between two currency codes and returns the current exchange rate - [Cerwal Broken Link Checker](https://www.zero.xyz/c/cerwal-broken-link-checker-53e9fe3b/llms.txt): $0.02/call via x402. Checks a URL for broken links up to a specified maximum count, returning link status data - [Cerwal Weather Lookup](https://www.zero.xyz/c/cerwal-weather-lookup-ec3d46a8/llms.txt): $0.01/call via x402. Returns weather data for a given location name via a pay-per-request API using USDC via x402 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)