Stop refreshing the page.
We'll watch it for you.

Paste a public URL, choose prices or the whole page (advanced: a specific part), and we'll email you when it changes. First watch free · daily. Need more? $2 USDC/month per watch on Base.

Start a watch

How it works

Paste a URL

Any public page. Watch prices, the whole page, or (advanced) a specific part.

We check it

Daily for free, or hourly when paid. One polite request at a time — no hammering.

You get an email

Confirm your email once. When prices or page content change, we send the diff — not noise.

Create a watch

Choose a plan

1 Connect wallet

Your wallet owns this watch (and pays $2 USDC on Base if Paid)

Step 1: connect so we know who owns the watch. Paid users will then send a plain $2 USDC transfer — no token approval.

2 Set up your watch

Name (optional)

URL to watch Public http(s) page to check for changes.

Wallet address (0x…) on Base Any Base address — whales, treasuries, or your own. We email on ETH/USDC balance or tx-count changes.

What to watch

Which element (advanced) A selector on the page (e.g. h1, .price). Plain English goals go in the field below — not here.

What are you watching for? (optional) Optional label for emails / My watches (e.g. whale moves). We'll still detect the change.

Check every Free plan locks to daily.

Email for alerts Required: first-time emails get a confirm link from alerts@watchpup.xyz — we only create the watch after you confirm (stops spam / unverified drafts). Already-confirmed emails create immediately. Add that address to contacts so it doesn’t hit spam.

3 Create — free needs no payment

Example sample watches — not yours

Paid is $2 USDC per watch per month on Base — no card, no subscription vault. Re-pay each month or drop to free. Expired paid watches keep running daily. Cap: up to 25 watches per wallet.