Change intelligence infrastructure
The web changed.Now you know why.
Field-level alerts when competitor prices, hiring, or messaging change.
{
"event": "page.changed",
"url": "competitor.com/pricing",
"confidence": 0.97,
"diff": {
"price": { "before": 129, "after": 99 },
"stock": { "before": "in_stock", "after": "in_stock" }
},
"summary": "Price dropped 23%. Stock unchanged."
}Signal delivered
Price dropped 23%.
Stock unchanged · confidence 97%
100
free calls / month
$0.003
per successful call
<3 min
to first monitor
24/7
scheduled monitoring
Signals, not screenshots
Know what moved.
Ignore what didn’t.
Competitor pricing
Plans, promotions, packaging.
Price dropped 23% · $129 → $99
Job postings
Roles, teams, locations.
3 new "Engineering" roles · London
Landing page changes
Positioning, launches, campaigns.
Headline changed · “Old message” → “New message”
From page to event
Watch the signal emerge.
Monitor → field diff → delivery
Live workflow
Stage 01
Monitor the page
SOURCE
FIELD DIFF
Meaningful change detected
Price −23% · noise removed
DELIVERY
Event delivered in 184ms
Why FlyPython
A change detector built for decisions.
Live API
Try any URL.
Extract structured data from a URL
JSON schema for structured extraction. Leave empty for auto-detection.
Built for developers
One Python SDK.
A web-aware stack.
Typed clients. Signed events. Managed runtime.
- Sync + async
- Extract + monitor
- Pydantic + MCP
import flypython
monitor = flypython.monitor(
url="https://competitor.com/pricing",
schema={
"price": "number",
"stock_status": "string",
},
webhook="https://myagent.com/events",
schedule="0 */6 * * *",
)
print(monitor.id)Usage-based pricing
Start free. Pay for signal.
100 free calls monthly. Then $0.003 per successful call.
Start now