◆ GravitronData

Marketplace data API

Product data from the marketplaces
your pricing depends on.

One HTTP call returns live price, buy-box seller, stock and specifications from a marketplace product page. No scrapers to maintain, no proxies to buy, no bot walls to fight.

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Request

curl https://api.gravitrondata.com/v1/walmart/price \
  -H "Authorization: Bearer gd_live_..." \
  -G --data-urlencode "item_id=974282675"

Response

{
  "title": "L'Oreal Paris Lumi Glotion",
  "price":  { "current": 14.97, "was": 17.99,
              "currency": "USD" },
  "availability": { "in_stock": true,
                    "transactable_offers": 1 },
  "seller": { "name": "Walmart.com",
              "is_walmart": true }
}

Available APIs

Walmart

Live

Live product data from Walmart.com product pages — price, buy-box seller, stock, ratings, specifications and images.

View docs →

Amazon

Coming soon

Product, pricing and offer data from Amazon listings.

Join the waitlist →

eBay

Coming soon

Listing, pricing and seller data from eBay.

Join the waitlist →

Temu

Coming soon

Product and pricing data from Temu.

Join the waitlist →

Etsy

Coming soon

Listing, shop and pricing data from Etsy.

Join the waitlist →

Why not build it yourself?

The wall is the hard part

Marketplace bot detection fingerprints your TLS handshake, not just your IP address. Getting a clean response is an ongoing engineering problem, and it changes underneath you.

Proxies cost real money

A residential proxy plan runs $1.75–$7.35/GB. At roughly 106 KB per product page that is $0.18–$0.74 per thousand lookups in bandwidth alone, before you write a line of code.

Structured, not scraped

You get typed JSON with named fields — price, seller, stock, UPC — not HTML to parse. Same shape every time, so your code does not break when a page layout shifts.

Start with 100 free credits

No card required. Generate a key and make your first call in under a minute.

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