Watch arXiv categories, keywords and authors on a schedule. Each run remembers exactly which papers it has already seen and delivers only the NEW ones, with optional webhook alerts (Discord, Slack, generic) and a digest mode. Built on the documented arXiv export API.
Watch Bluesky accounts and keywords on a schedule and get only posts you have not seen before. Cross-run memory, Discord and Slack alerts, digest mode. Account watching needs no credentials.
Checks every item in a Google Merchant Center product feed against the product data specification, then watches the feed on a schedule and reports what newly broke and what was fixed.
Watch Mastodon hashtags, keywords and accounts. Scheduled runs remember what they already saw and deliver only NEW matching posts, with optional webhook alerts (Discord, Slack, generic) and a digest mode. Built on the documented Mastodon API.
Watch any list of Shopify stores and get only what changed: price moves, sale starts and ends, back in stock, out of stock, new and removed products, and variant changes. Webhook alerts to Discord, Slack or your own endpoint.
Scrapes Amazon product reviews and tells you exactly how many you got, how many exist, and why it stopped. Charged per review delivered, so a run that returns nothing costs nothing.