Monitor any URL. Fire structured webhooks to n8n, Make, or Zapier the instant content changes.
{
"event": "page.changed",
"monitor_id": "mon_abc123",
"url": "https://competitor.com/pricing",
"triggered_at": "2026-03-16T14:22:00Z",
"content": "Pro plan: $59/month — …"
}
Used by developers building on n8n · Make · Zapier · custom stacks
Use cases
Automation builders were already running these workflows — they just had no reliable webhook trigger.
Get a webhook the moment a competitor's pricing page changes. Catch price hikes within hours, not weeks.
Monitor government pages, regulatory filings, and compliance portals. Never miss a policy update.
Job listings, stock levels, release notes, advisories — any external signal that should trigger an internal workflow.
Features
No consumer-grade limitations. No dashboard requirement. No webhook as an afterthought.
Every action is available via REST. No UI required. The docs open with a curl command.
Every webhook is signed with sha256. Verify authenticity on the receiving end.
Watch a single element — a price cell, a status badge — not the whole page.
Headless Chromium captures content rendered by JavaScript — SPAs included.
Describe what you want to watch for in plain English. Filters cut through layout noise so alerts match what you care about.
Up to 1 year of history for every detected change, with full before/after snapshots.
Quick start
One API call. No SDK. No config file.
Pricing
Start free. Upgrade when you need more.
No credits. No per-check billing. Pick the plan that fits how many monitors you need and how fast you need them checked.
Connects to any HTTP endpoint