# Watcher API: Get realtime alerts on leads, accounts & companies

The Watcher API allows you to “subscribe” to live updates about people or companies based on your own criteria. Set watches, get notified via webhooks, and always act on fresh data.

[**Get a Demo**](/content/demo/index.html)

### Popular use cases

### Sales

- Update Prospect Lists to ensure prospect details are up to date for more accurate targeting.
- Instant notifications that can act as triggers for quicker and relevant outreach.

### Recruiting

- Keep candidate databases up to date.
- Be the first to reach out to a potential candidate by monitoring for changes that can be used as triggers for outreach.
- Track specific signals that can be used as triggers for outreach to get more leads.

### Investment

- Monitor founders you are interested in to know their activities in realtime.
- Monitor portfolio companies to get realtime view of their performance and identify any risk or growth indicators.

### Customer success

- Monitor your champions and get live notifications when they shift companies, departments or get a promotion.

### CRMs, products and internal platforms

- Keep your database updated with live auto updates ensuring you always have the most accurate and comprehensive data.

### Types of Watchers you can use

- Track for specific events that happen across all companies and people.

###### Event Watcher

###### Company Watcher

###### People Watcher

- Job posting with keyword & location: Tracks job postings that contain certain keywords in the title or description and are posted in a specific location.
- New funding announcement: Tracks new funding announcements for companies.
- LinkedIn post with keywords: Tracks LinkedIn posts that contain specified keywords.
- Company headcount increased: Tracks when a company's headcount increases by a specified percentage over one year.
- Someone starts a new job: Tracks when a person starts a new job or position.
- Job posting by location: Tracks job postings that contain certain keywords in the title or description and are posted in a specific location.
- Company department headcount in range: Tracks headcount of a specific department of company.
- First person hired in company department: Tracks companies where first person in hired in X department.
- First person hired internationally: Tracks companies where first person in hired internationally.
- Employee location in two countries: Tracks companies where employee job location in two countries.
- Company headcount growth over baseline: Tracks companies where headcount growth over baseline.

## How does Crustdata compare to others?

| Feature | Crustdata | Coresignal | PDL | Zoominfo |
| --- | --- | --- | --- | --- |
| Webhook support | ✅ Yes (for job changes & custom events) | ✅ Yes (only for job changes) | ❌ No | ✅ Yes (enterprise only) |
| Realtime updates | ✅ Yes | Weekly | N/A | Unspecified |