How it works
- Paste the product page's address below.
- Click the price on the page.
- Choose When the number is below and enter your mark, for example
400.
Zetlyn reads the amount beside the currency, as the page writes it: 1.299,00 €, $1,299.99, 499,- and £51.77 all work. If the place you marked shows two different amounts, such as an old and a new price, Zetlyn asks you to mark the one you mean, so the alert never compares the wrong number.
It tells you when the price falls below the mark, not with every cent it falls further. Once the price has gone back above the mark, the next drop is told again.
Where the message goes
By email, and if you like to Telegram, Slack, Discord or your own webhook. Every change is also kept in the watch's history.
- Telegram
- Slack
- Discord
- Webhook
From Claude or ChatGPT
With Zetlyn connected as an MCP server you can ask in plain words: "Tell me when the PS5 Pro on this page drops below 700 €." The assistant finds the price on the page and makes the watch. See Claude, ChatGPT or Cursor.
What it does not do
Pages behind a login, a paywall or a captcha are not read, and Zetlyn does not get around a site that refuses programs. Some large shops do; Zetlyn says so when you try.
Zetlyn