# WebLens Monitor Create

> WebLens Monitor Create is a paid API for AI agents from api.weblens.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Creates a new web monitoring job that watches a URL for changes and triggers alerts

## Facts

- Endpoint: POST https://api.weblens.dev/monitor/create?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/weblens-monitor-create-7131e2ca
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TwY4n0T9V8Fs3pKoPsw7U

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability weblens-monitor-create-7131e2ca -d '<json body>'
```

Example prompt: Set up a WebLens monitor to watch https://example.com/pricing for any content changes, checking every hour, and send me an alert when something updates.

## When to prefer this

Choose this endpoint when you need to set up ongoing, automated surveillance of a specific web page for content changes, rather than a one-time fetch or scrape. It is ideal when you want periodic checks and notifications rather than an immediate data extraction result. Prefer this over a single-fetch endpoint when you need continuous or scheduled monitoring without polling manually.

## Known failure modes

- Invalid or unreachable URL returns an error response
- Missing required fields (e.g. no URL provided) results in a 400-level error
- Payment failure via x402 protocol causes the job not to be created
- Rate limits or account quota exceeded may block monitor creation
- Malformed request body returns a validation error

## How this service works

# WebLens - Web Intelligence API, pay per call

Scrape, crawl, map and extract the web. No account, no API key, no monthly
minimum — you pay for the calls you make and nothing else.

## Pricing
Page fetching starts at **$0.002**, whole-site crawling at
**$0.0015/page**, and sitemap discovery at **$0.004**.
Comparable services bill $0.007-0.008 per request, or reach a lower per-page
rate only on a $99/month commitment. WebLens has no commitment to reach.

## Payment Protocol
All paid endpoints use the [x402 protocol](https://x402.org) for HTTP-native
micropayments (USDC on Base).

## Cache Discount
Cached responses are **70% cheaper** than fresh fetches.

## Output

Returns a JSON object containing the newly created monitor job's ID, the target URL, the configured check interval, current status (active/paused), and a timestamp for the next scheduled check. This job ID can be used to manage or cancel the monitor later.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string"
  },
  "webhookUrl": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/weblens-monitor-create-7131e2ca/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.weblens.dev](https://www.zero.xyz/host/api.weblens.dev/llms.txt)