Zetlyn

Compared

Zetlyn and Visualping compared

Both watch web pages and tell you when they change, and both can be used by AI assistants through an MCP server. They differ in how they price, where they run, and what you can run yourself.

Visualping's figures are from its pricing page as of 21 October 2026; check it for today's.

ZetlynVisualping
Free1 watch for 3 days, checked hourly5 pages, 150 checks a month, hourly
Paid from9.99 € a month, VAT included, 10 watches$14 a month (Personal 1K)
Priced bywatches (0.50 € for each one more)checks a month
Most oftenevery minuteevery 5 minutes (Personal), 2 (Business)
Notificationsemail, Telegram, Slack, Discord, signed webhookemail, webhook, Telegram, n8n; Slack, Teams, Sheets on Business
API and MCPHTTP API, MCP server with OAuthREST API and MCP server on every plan
JSON, RSS, XMLread, one line per value; feeds by new entry–
Run it yourselfyes, MIT, one binary or Docker imageno
ServersGermany–

When Zetlyn fits

When Visualping fits

Changedetection.io · Distill · All use cases

Watch your first page.
The first 3 days are free.