# Track SaaS price increases and plan changes

**Use case:** 

Watch a subscription pricing page for changes to prices, features and usage limits. This example checks Fathom Analytics. First run saves a baseline; run again later to compare. Replace the URL to watch your supplier or competitor. Static HTML only. $0.50 per 1,000 successful checks; failed checks are free. Scheduling and alerts need separate setup. See the Actor guide for the walkthrough.

## Input

```json
{
  "urls": [
    "https://usefathom.com/pricing"
  ],
  "monitorName": "demo-saas-pricing",
  "selector": "main"
}
```

## Output

```json
{
  "url": {
    "label": "Page",
    "format": "link"
  },
  "status": {
    "label": "Result",
    "format": "text"
  },
  "summary": {
    "label": "What changed",
    "format": "text"
  },
  "removed": {
    "label": "Previous text",
    "format": "array"
  },
  "added": {
    "label": "New text",
    "format": "array"
  },
  "beforeRegion": {
    "label": "Before large rewrite",
    "format": "array"
  },
  "afterRegion": {
    "label": "After large rewrite",
    "format": "array"
  },
  "evidenceTruncated": {
    "label": "Evidence shortened",
    "format": "boolean"
  },
  "error": {
    "label": "Error",
    "format": "text"
  }
}
```

## How it works

### 1. Sign up on Apify or log in

The Website Change Monitor for Prices & Terms Actor is ready to run with the inputs already set for "Track SaaS price increases and plan changes". [Sign up or log in](https://console.apify.com/create-task-from-example/5Uc2GXCdX4vHnP5rJ) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Track SaaS price increases and plan changes" task

The Website Change Monitor for Prices & Terms Actor will start running based on the input automatically. You can also change all the input fields, like public pages, monitor name, and more, to match your specific use case.

### 3. Receive the "Track SaaS price increases and plan changes" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as page, result, what changed, and more.

### 4. Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also [run the "Track SaaS price increases and plan changes" task via API](https://apify.com/futurescash/price-terms-change-evidence.md).

## About this Actor

This example demonstrates how to use [Website Change Monitor for Prices & Terms](https://apify.com/futurescash/price-terms-change-evidence.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/futurescash/price-terms-change-evidence.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

This Task's input is already configured above. Use it as-is rather than inventing a new one.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/futurescash/price-terms-change-evidence.md

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).