Look up books by ISBN against the Internet Archive's free, open Open Library catalog. Get title, authors, publisher, publish date, page count, subjects, cover image URL, and an excerpt where available. Pay only for ISBNs that resolve to a real book.
Discover every URL a website's own XML sitemap declares, starting from robots.txt's Sitemap: directive and following sitemap indexes automatically. No key, no page crawling: charged only when a working sitemap is found.
Website tech stack detector that finds out what a site is built on: CMS, ecommerce platform, JS framework, analytics, CDN, payments and more, read straight from its own HTML and headers, no third-party API. Paste a list of domains, press Start. Charged only when something is detected.
Telegram channel info scraper: look up any public Telegram channel by username and get its subscriber count, description, verification badge, and recent-post stats, read straight from Telegram's own public preview pages. Charged only for channels actually found.