Yes, there is an official Google Trends API. No, you cannot simply sign up for a key.
Google announced the API in July 2025. As of October 2026, Google's documentation still describes it as an alpha that accepts applications from testers. There is no self-serve API key and no published pricing. If you searched for "Google Trends API key" or "Google Trends API pricing", that is the whole answer for the official route today. Check Google's Trends API page for the current status before you plan around it.
Three routes to Trends data
| Route | Access | What you get | Main limit |
|---|---|---|---|
| Official Google Trends API | Apply for the alpha | A rolling five years of data, aggregated by day, week, month or year | Access is by application; no public price or launch date |
| The Trends website | Open to everyone | Charts and a manual CSV export | One query at a time, by hand |
| Third-party endpoints | An account with the provider | Trends data as JSON through someone else's API | Coverage and scaling depend on the provider |
A fourth route exists: unofficial libraries that call the website's internal requests. They break whenever the site changes and can be rate-limited without notice, so they are a poor base for anything that has to run on a schedule.
What makes the official API different
Google's documentation highlights one technical difference from the website: the API's data is not scaled from 0 to 100.
On the website, every chart is rescaled so that its own highest point is 100. That makes two separate charts impossible to compare: 80 on one and 80 on another mean nothing relative to each other. The official API returns consistently scaled values, so requests can be merged and time ranges extended without everything being rescaled.
If your project needs to compare many terms, or stitch together long histories, that is the reason to apply for the alpha instead of exporting CSVs.
A Trends endpoint for Amazon sellers
Sellers usually want Trends data for one job: checking whether a pattern seen in Amazon data also exists outside Amazon. This endpoint returns Google interest over time for one keyword, keyed by Amazon marketplace:
curl --request POST \
--url https://ecommercedataapi.com/v1/amazon/google/trends \
--header "Content-Type: application/json" \
--header "X-API-Key: ${ECOMMERCE_DATA_API_KEY}" \
--data '{
"marketplace": "US",
"keyword": "iphone stand",
"googleProp": "web",
"monthly": false
}'| Field | What it tells you |
|---|---|
items[].time | The point in time, as a millisecond timestamp |
items[].value | The interest score at that point |
link | A link that opens the same query on the Trends site |
googlePropchooses the surface:webfor web search,shoppingCartfor Google Shopping search.monthlyswitches to monthly aggregation; the default isfalse.- The documented example link covers a five-year window, so one call returns several years.
Its scores are relative, like the website's: each result is scaled on its own, so compare the shape of two curves, not their levels. The Google Trends API for Amazon sellers page has the details.
How sellers use it
Confirm seasonality. Amazon search history says when a term climbs on Amazon. If the Google curve climbs in the same months, the season is more likely to repeat. Seasonal product research shows the method.
Separate a season from a fad. Five years on one curve show whether a peak comes back each year or happened once.
Compare web and shopping interest. Shopping search sits closer to buying intent. Run both when a term matters.
Trends gives direction, not size. For how many searches a term gets on Amazon, see how to check Amazon keyword search volume.
What Trends data cannot do
It is not search volume. A score of 60 is not 60 searches, or 60,000. It is a level relative to that term's own peak.
It is not Amazon demand. People search Google and Amazon for different reasons. Use it to cross-check, not to forecast sales.
It does not compare terms unless they share a scale. Two separately scaled curves can only be compared by shape.
Questions
Is the Google Trends API free? The official API has no published pricing while it is in alpha, and access is by application. The website is free to use by hand.
How do I get a Google Trends API key? There is no self-serve key for the official API. You apply to the alpha through Google's Trends API page.
Can I get search volume from Google Trends? No. Trends reports relative interest, not counts.
Can an AI agent pull a trend curve? Yes. The endpoint above is a tool on the remote MCP server, so an agent can fetch a curve and read it in the same conversation.