Price drop alerts
When a price falls below the mark you set.
Back in stock
When "Sold out" goes, or "In stock" appears.
New releases
A new version on a download page, a feed or an API.
Any page that changes
Terms, competitors, status and job pages: before and now.
JSON APIs
One field of a response, or all of it, to a signed webhook.
RSS and Atom feeds
One message for each new entry, not for the whole feed.
From an AI assistant
Connect Zetlyn once and ask in plain words. The API and the MCP tools are described in full.
Claude
As a custom connector, or in Claude Code.
ChatGPT
As a connector, with its address alone.
Cursor and other MCP clients
VS Code, or any client that speaks MCP.
Zetlyn