Collectors · E-commerce

Google Shopping API in Python

Shopping listings for a product query — price, seller, rating, product id. One POST from Python with query, rows back as JSON with 20 fields, $0.001 per delivered listing. No proxies or parsers to maintain.

Get an API key See the collector

A Python requests snippet that posts { — A Python requests call to the google_shopping collector returns one dict per listing, at $0.001 each.

First call

Install, call, read the rows.

pip install requests

The only dependency.

import os, requests

r = requests.post(
    "https://api.quanticdata.io/v1/scraper/collectors/google_shopping/run",
    headers={"Authorization": f"Bearer {os.environ['QD_API_KEY']}"},
    json={
        "query": "wireless earbuds",
        "country": "us",
        "max_results": 20,
    },
    timeout=120,
)
r.raise_for_status()
run = r.json()["payload"]
print(run["count"], "rows,", run["cost"]["usd"], "USD")
for row in run["results"]:
    print(row.get("title"), row.get("link"), row.get("product_link"), row.get("product_id"))

Python: one Google Shopping run (Earbuds (US)), printing title, link, product_link, product_id

The key comes from an environment variable, never from the code. The run answers in the same request when it finishes in time; payload.results holds the rows and payload.cost what they cost.

Request parameters

What the collector takes.

Input of the Google Shopping collector
Parameter	Type	Required	Meaning
`query`	string	yes	e.g. "wireless earbuds", "nike air max 90".
`country`	string	no	ISO 3166-1 alpha-2 code — proxy exit geo and Google locale (gl). Omit for the default pool.
`lang`	string	no	Interface language (hl), e.g. en, it, de.
`max_results`	integer	no (default 20)	How many listings to deliver at most (1–100). You pay only for delivered listings.

Response fields

20 fields per listing.

Fields of each row (listing)
Field	Type	What it holds
`rank`	integer	1-based position across pages.
`title`	string	Listing title.
`link`	string, nullable	Merchant / Google link.
`product_link`	string, nullable	Google Shopping product page.
`product_id`	string, nullable	Google product id parsed from product_link — input for Product offers.
`price`	string, nullable	Price as shown.
`price_value`	number, nullable	Numeric price.
`currency`	string, nullable	Currency code/symbol.
`rating`	number, nullable	Star rating.
`reviews`	integer, nullable	Review count.
`seller`	string, nullable	Merchant name.
`multiple_sources`	boolean	True when several merchants offer it.
`condition`	string, nullable	refurbished / used / open box when not new.
`extensions`	string[]	Badges (free shipping, returns…).
`tag`	string, nullable	Promo tag ("7% OFF").
`image`	string, nullable	Image URL.
`offer_id`	string, nullable	The offer shown on the card (rendered grid only).
`old_price`	string, nullable	List price shown struck through next to a discounted price.
`old_price_value`	number, nullable	Numeric list price.
`source`	string	Where the listing comes from: google_shopping or bing_shopping.

Add ?format=csv to the runs endpoint to get the same rows as CSV.

Long runs

Run in the background, then poll.

A run that needs more time can go to the background: send "async": true, get 202 with the run id, and poll the runs endpoint until the status is done. Reading a run is free.

import os, time, requests

H = {"Authorization": f"Bearer {os.environ['QD_API_KEY']}"}
r = requests.post("https://api.quanticdata.io/v1/scraper/collectors/google_shopping/run", headers=H,
                  json={**{"query":"wireless earbuds","country":"us","max_results":20}, "async": True}, timeout=30)
run_id = r.json()["payload"]["run_id"]
while True:
    run = requests.get(f"https://api.quanticdata.io/v1/scraper/collectors/runs/{run_id}", headers=H, timeout=30).json()["payload"]
    if run["status"] in ("done", "failed"):
        break
    time.sleep(5)
print(run["status"], run["count"])

Python: background run and polling

Errors

What can come back, and what is billed.

Collector run errors
Status	Meaning	Billed
`400`	The input does not match the collector (`payload.errors`)	No
`401`	Missing or wrong API key	No
`402`	Balance and free credit do not cover the run: top up	No
`422`	The input can never resolve; retrying the same input cannot help	No
`424`	The run failed at the source (blocked, timed out, layout changed); safe to retry	No
`429`	Rate limit or a per-account brake; wait for `Retry-After`	No

Only delivered rows are billed: a run that delivers nothing costs nothing.

Price

$0.001 per delivered listing.

What Google Shopping rows cost at list price
Rows	Cost
1	$0.001
1,000	$1.00
10,000	$10.00

Up to 100 listings per run; split larger jobs into several runs. The $2 free credit every month covers about 2,000 listings. No subscription; paid tiers lower the unit price. All collector prices: collector pricing.

Before you run it

Questions developers ask

Is there a free Google Shopping API?

Every account gets $2 of free usage each month, about 2,000 listings of this collector at $0.001 each, with no card.

Do I have to handle proxies, retries or blocks?

No. The collector runs on our network and handles them; a run blocked at the source returns 424 and is not billed.

How many rows can one run return?

Up to 100 listings per run (the max_results input, where the collector has one).

Can an AI agent run it?

Yes: the MCP server exposes it as the run_collector tool, with the same input and price. See the MCP server.

Run it on the free credit.

Create an API key, export it as QD_API_KEY and run the example. $0.001 per delivered listing, no subscription.

Get an API key Google Shopping API