How do I track an Amazon price?

Paste the product's Amazon address (or just its ASIN, the ten-character id in the address) into the form on this page. If we already record it, its price history opens straight away; if we do not, Amazon's own API answers for it and the product gets a page with its record starting that day. Or skip the form: change amazon.com to basketprice.com in the product's address, so amazon.com/dp/B0DGJ7HYG1 becomes basketprice.com/dp/B0DGJ7HYG1.

Do I need an account?

No. A price history is an ordinary page: nothing to sign up for, nothing to install.

How often are prices checked?

At least every 20 hours, by a scheduled job that asks each retailer's API or reads its product page. The split is Amazon's rate limit, not a preference: we read as much of the catalogue per run as they will answer, oldest price first, so nothing sits unread. A price is written to the record when it differs from the last reading, so the history is a list of changes rather than a row every few hours, and every offer shows the age of its own last reading.

Why is the history shorter than on other trackers?

Because it is ours. The record starts the day we start watching a product, and the oldest reading we hold anywhere is from September 8, 2026. We do not reconstruct earlier prices from a retailer's own claims about what it used to charge, and we never write "lowest ever" when we mean "lowest since we started".

Which retailers can you watch?

Amazon. A link anywhere else is refused by the form: a new retailer means reading its robots.txt, learning where it publishes a price, and holding whatever licence covers showing it.

Amazon price tracker

Paste an Amazon link (or the bare ASIN) and get the price history we recorded ourselves. We watch 12,755 products and re-read every price at least every 20 hours; a product we do not have yet becomes a page on the spot. Anything from another retailer we watch goes into the queue we work through by hand.

Skip the pasting

Edit the address: on an Amazon product page, change amazon.com to basketprice.com and press Enter. You land on the price history we recorded for it, or on this form with the product filled in if we do not record it yet. It works on a phone too.

Or drag this to your bookmarks bar. On any retailer’s product page, click it and you land back here with the address already filled in.

Price history for this page

It reads one thing, the address in your address bar, and sends it to this form. It cannot read the page, cannot see anything you type, and runs no code of ours on the retailer’s site. That is the whole of it:

javascript:void(location.href='https://www.basketprice.com/track?url='+encodeURIComponent(location.href))

Retailers we can watch

Amazon. A link to anywhere else cannot be accepted by the form: a new retailer means reading their robots.txt, learning where they publish a price and holding whatever licence covers it, and none of that is a decision a form can make.

What happens next

An Amazon link, or an ASIN on its own, is answered at once: we take the product id out of it and ask Amazon’s own API about that product, the same way the scheduled check does. The address you pasted is never fetched. Listings Amazon records almost no sales for wait for a person, so a no-name listing does not become a page by itself.
Links to other retailers are accepted by a person first, which is why those are not instant and why the form cannot point our crawler at an arbitrary address.
From then on the price is checked at least every 20 hours. We write it down when it changes, and the first verdict needs a recorded price on 7 different days, so it comes as fast as the price moves. A price that holds for 10 days gets an answer of its own sooner: that it has held.
The record starts the day we start watching. We cannot show you what a product cost last Christmas if we were not recording it last Christmas, and we will not reconstruct one from a retailer’s own claims about its old prices.

How this compares with the trackers you already know

Each of them draws its chart inside the Amazon page, and the two dedicated trackers hold years more history than we do. What none of them does is tell you whether today’s price is a good one and then publish how often that call held up. Row by row, with the parts they win first: camelcamelcamel · Keepa · Honey · Price History · Visualping · Karma.

Questions people ask

How do I track an Amazon price?: Paste the product's Amazon address (or just its ASIN, the ten-character id in the address) into the form on this page. If we already record it, its price history opens straight away; if we do not, Amazon's own API answers for it and the product gets a page with its record starting that day. Or skip the form: change amazon.com to basketprice.com in the product's address, so amazon.com/dp/B0DGJ7HYG1 becomes basketprice.com/dp/B0DGJ7HYG1.
Do I need an account?: No. A price history is an ordinary page: nothing to sign up for, nothing to install.
How often are prices checked?: At least every 20 hours, by a scheduled job that asks each retailer's API or reads its product page. The split is Amazon's rate limit, not a preference: we read as much of the catalogue per run as they will answer, oldest price first, so nothing sits unread. A price is written to the record when it differs from the last reading, so the history is a list of changes rather than a row every few hours, and every offer shows the age of its own last reading.
Why is the history shorter than on other trackers?: Because it is ours. The record starts the day we start watching a product, and the oldest reading we hold anywhere is from September 8, 2026. We do not reconstruct earlier prices from a retailer's own claims about what it used to charge, and we never write "lowest ever" when we mean "lowest since we started".
Which retailers can you watch?: Amazon. A link anywhere else is refused by the form: a new retailer means reading its robots.txt, learning where it publishes a price, and holding whatever licence covers showing it.