Trusted by the best startups startups in the world
From page changes to automated alerts
One HTTP call - no cron jobs, diff scripts, or notification workflows to maintain yourself.
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Describe what to watch
Create a monitor with a natural-language query. Track pricing pages, changelogs, launches, docs, status pages, or any source your workflow depends on.
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Olostep provisions the monitor
Olostep validates the request, resolves tracked targets, applies source rules, creates the recurring schedule, and captures snapshots for future comparisons.
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Get change alerts back
Receive change summaries through email, Slack, SMS, or webhook, with monitor status, snapshot events, and run history available through the API.
Built for production monitoring
The /v1/monitors API is designed for apps that need reliable
web change detection, alerts, and recurring checks at scale.
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Natural-language monitors
Create monitors from plain-English queries instead of building custom selectors, comparison logic, and scheduled scripts.
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Flexible schedules
Run checks with scheduling phrases like every hour, every day at 9am, or every weekday at 14:30.
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Alerts & webhooks
Send alerts to email, Slack, SMS, or webhook when a first snapshot is captured or a change is detected.
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Lifecycle control
List, inspect, update, pause, resume, delete, and audit monitors through API endpoints built for teams.
Create a monitor. Choose a schedule.
Add frequency, source_policy, notification, webhook, or output_schema
when you need controlled monitoring and structured alerts.
Monitor pages on a schedule and get change alerts
1import requests
2import json
3
4API_KEY = "<YOUR_API_KEY>"
5API_URL = "https://api.olostep.com/v1"
6
7# Create a monitor
8payload = {
9 "query": "Alert me when Tesla stock price is above $500",
10 "frequency": "every hour",
11 "email": "alerts@example.com"
12}
13
14headers = {
15 "Authorization": f"Bearer {API_KEY}",
16 "Content-Type": "application/json"
17}
18
19response = requests.post(f"{API_URL}/monitors", headers=headers, json=payload)
20monitor = response.json()
21monitor_id = monitor['id']
22
23print(f"Monitor created: {monitor_id}")
24print(f"Status: {monitor['status']}")
25
26# List all monitors
27monitors = requests.get(f"{API_URL}/monitors", headers=headers).json()
28for m in monitors['monitors']:
29 print(f"{m['id']}: {m['url']} ({m['frequency']})")
30
31# Get monitor details
32details = requests.get(f"{API_URL}/monitors/{monitor_id}", headers=headers).json()
33print(json.dumps(details, indent=2))
34
35# Delete a monitor
36requests.delete(f"{API_URL}/monitors/{monitor_id}", headers=headers)
37print(f"Monitor {monitor_id} deleted")1const API_URL = 'https://api.olostep.com/v1'
2const headers = {
3 'Authorization': 'Bearer <YOUR_API_KEY>',
4 'Content-Type': 'application/json'
5}
6
7// Create a monitor
8const res = await fetch(`${API_URL}/monitors`, {
9 method: 'POST',
10 headers,
11 body: JSON.stringify({
12 query: 'Alert me when Tesla stock price is above $500',
13 frequency: 'every hour',
14 email: 'alerts@example.com'
15 })
16})
17
18const monitor = await res.json()
19console.log(`Monitor created: ${monitor.id}`)
20console.log(`Status: ${monitor.status}`)
21
22// List all monitors
23const monitors = await fetch(`${API_URL}/monitors`, { headers }).then(r => r.json())
24monitors.monitors.forEach(m => console.log(`${m.id}: ${m.url} (${m.frequency})`))
25
26// Get monitor details
27const details = await fetch(`${API_URL}/monitors/${monitor.id}`, { headers }).then(r => r.json())
28console.log(details)
29
30// Delete a monitor
31await fetch(`${API_URL}/monitors/${monitor.id}`, { method: 'DELETE', headers })
32console.log(`Monitor ${monitor.id} deleted`)1# Create a monitor
2curl -s -X POST "https://api.olostep.com/v1/monitors" \
3 -H "Authorization: Bearer <YOUR_API_KEY>" \
4 -H "Content-Type: application/json" \
5 -d '{
6 "query": "Track changes in product pricing and stock information",
7 "url": "https://example.com/products/widget-pro",
8 "frequency": "daily",
9 "email": "alerts@example.com"
10 }'
11
12# List all monitors
13curl -s "https://api.olostep.com/v1/monitors" \
14 -H "Authorization: Bearer <YOUR_API_KEY>"
15
16# Get monitor details (replace <MONITOR_ID>)
17curl -s "https://api.olostep.com/v1/monitors/<MONITOR_ID>" \
18 -H "Authorization: Bearer <YOUR_API_KEY>"
19
20# Delete a monitor (replace <MONITOR_ID>)
21curl -s -X DELETE "https://api.olostep.com/v1/monitors/<MONITOR_ID>" \
22 -H "Authorization: Bearer <YOUR_API_KEY>"
What you can build
Turn live web changes into automated workflows for product, growth, sales, and operations.
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Competitor intelligence
Watch competitor blogs, launch pages, changelogs, documentation, pricing pages, and feature updates.
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Price & catalog alerts
Track product availability, marketplace listings, coupon pages, pricing changes, and category pages over time.
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Ops monitoring
Monitor status pages, supplier updates, policy pages, terms pages, regulatory updates, and public announcements.
Trusted by Amazing Teams Building the Future of AI
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Michelle JuliaCo-founder & CEO AuriumOlostep is the best!!! We automated entire data pipelines with just a prompt
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Richard HeCo-founder & CEO OpenmartOlostep has become the default Web Layer infrastructure for our company
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Max Brodeur-UrbasCo-founder & CEO GumloopOlostep works like a charm! And your customer service is exceptional
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Rob HayesCo-founder MerchkitOlostep lets us turn any website into an API. Great product, great people
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Brandon CohenCo-founder & CTO CivilGridI highly recommend Olostep, great product!
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Co-founder & CEO Gedd.itWe verify coupon codes at scale. Love Olostep. It works on any e-commerce
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Trevor WestCo-founder & CEO PodqiOlostep is the best API to search, extract, and structure data from the Web. Happy to be customers
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Rida NaveedCo-founder ZecentoWe use /batches combined with parsers and it's magical how we can get structured data at large scale
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Kieran V.Growth PlotsEventsOlostep allowed us to search and structure events data across the Web
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Paul MitFounder FoundbaseReliable and cost-effective API for working with data. Congrats on the cool product
Start monitoring with Olostep
Get change alerts from any website with Olostep.
Most cost-effective API. Built for scale
Frequently asked questions
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What is the /v1/monitors endpoint?
It creates persistent monitors that run scheduled checks, capture snapshots, detect changes, and send alerts through channels or webhooks.
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What happens after I create a monitor?
The API returns provisioning status first. Once planning resolves tracked targets, the monitor becomes active.
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How do monitor alerts work?
Set notification events and channels, or add a webhook URL. Alerts can fire on first snapshot, changes, or both.
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Can I control what a monitor watches?
Yes. Use source_policy to include or exclude URLs and domains, or describe the target inside the natural-language query.
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How often can a monitor run?
Use natural-language schedules like every hour, every day at 9am, or every weekday at 14:30. Minimum interval is every 10 minutes; schedules run in UTC.
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How do I get page content?
List pages from /v1/crawls/{id}/pages, then call /v1/retrieve with each page's retrieve_id. Prefer retrieve over deprecated inline content fields on pages.
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How much does monitoring cost?
Monitor is billed per page crawled (see current pricing in the docs).