Set the country to uk. Each results page is one call at $0.0337.
Amazon product research for a niche, run by your agent.
5 of the 9 stretch lid listings with over 1,000 reviews rate under 4 stars.
Amazon product research means reading a niche's search results for price, rating and review count, then reading the leaders' reviews. On 20 October 2026 two Amazon searches for silicone stretch lids returned 40 results. Of the 9 stretch lid listings with over 1,000 reviews, 5 rate under 4 stars. The run cost $0.0710.
FOR Amazon sellers and brands sizing up a niche before they source a product
THIS RUN · 20 OCT 2026 $0.0710 4 PAID CALLS · 3 NOT CHARGED
01 / THE METHOD
How to do Amazon product research
Product research on Amazon comes down to three questions. Do people buy this? Can the sellers who rank be beaten? What do buyers wish were better? Search results answer the first two, through price, star rating and review count. Reviews answer the third.
Paid research tools add monthly sales estimates, keyword volume and price history on top. An agent with Amazon search, product and review tools reads the same public pages your browser shows, so it sees what a shopper sees and nothing more. That is often enough to rule a niche in or out before you pay for deeper data.
02 / THE PROMPT PASTE IT INTO YOUR AGENT.
One prompt.
Your agent runs it.
Your agent picks the tools, makes the calls and reads the results. You see each charge as it settles.
PASTE THIS INTO YOUR AGENT
FIRST TIME? GIVE THIS TO YOUR AGENT FIRST
Works in 
and any agent that can run a terminal command.
and any agent that can run a terminal command.03 / THE RUN RECORDED 20 OCT 2026.
Every call.
Every charge.
What your agent asked each tool, what came back and what it cost. Calls that failed or found nothing were not charged.
YOU · ONE PROMPT
I'm thinking about selling silicone stretch lids on Amazon US. Search Amazon for the niche, read the first two pages of results with price, rating, review count and which listings are sponsored, then open the most-reviewed stretch lid set and read 12 of its reviews. Tell me whether there is room for a better product.
YOUR AGENT
tapinall ONE BALANCE- 01 Amazon search, page 1
Read 20 results. 8 are paid ads, and one set shows up both as an ad and unpaid.
$0.0337 - 02 Amazon search, page 2
Read 20 more. The best-rated big sellers are flat lids, not stretch lids.
$0.0337 - 03 Product page
Opened the 18-pack leader. $9.83, 3.9 stars, only 10 left in stock.
$0.0033 - 04 Reviews of the 18-pack
Asked for 12 reviews. The tool ran out of time, so nothing was billed.
Failed · not charged - 05 Reviews, 8
Asked for 8. It ran out of time again. Not billed either.
Failed · not charged - 06 Reviews, 5
Asked for 5. A third time out, and still nothing billed.
Failed · not charged - 07 Reviews of the 14-piece set
Moved to the next leader and read 12 reviews. Slipping and tearing come up.
$0.0003
TOTAL $0.0710 about $0.0018 per product read
- search results read from two pages
- 40
- stretch lid listings with 1,000+ reviews rate under 4 stars
- 5 of 9
- reviews of the 14-piece set say the lids slip off or do not fit
- 3 of 12
See the exact calls and responses FOR DEVELOPERS
agent-session / amazon-product-research 7 CALLS
- 01 / AMAZON SEARCH, PAGE 1
tapinall call crawl4ai.amazon.search.products --data '{"keywords":"silicone stretch lids","country":"us"}'20 results with price, star rating, review count and a sponsored flag
#1 sponsored · 7-pack stretch lids · $19.95 · 4.2 · 1,859 reviews · the same listing unpaid at #5
#8 14-piece set, 7 sizes · $9.97 · 4.0 · 2,713 reviews
#9 12-pack · $12.99 · 3.8 · 2,487 reviews
#12 Orblue 6-pack · $8.99 · 4.3 · 1,393 reviews
ok — Charged: $0.0337
- 02 / AMAZON SEARCH, PAGE 2
tapinall call crawl4ai.amazon.search.products --data '{"keywords":"silicone stretch lids","country":"us","page":2}'20 results, none sponsored
#8 18-pack, 6 sizes · $9.83 · 3.9 · 5,089 reviews
#11 12-pack, 6 sizes · $12.99 · 3.8 · 4,874 reviews
#1 6-piece set · $5.97 · 3.5 · 2,306 reviews
#16 flat 5-pack splatter lids · $9.99 · 4.5 · 6,251 reviews
#7 GUANCI flat 8-pack · $18.99 · 4.5 · 4,417 reviews
ok — Charged: $0.0337
- 03 / PRODUCT PAGE
tapinall call crawl4ai.amazon.product.detail --data '{"product":"B08DKVZCBC","country":"us"}'WOCIUD 18-pack, 6 sizes from 2.5 to 8.0 inches · $9.83
3.9 stars · 5,089 reviews · "Only 10 left in stock - order soon."
5 feature bullets: food-grade silicone, fridge, microwave and dishwasher use, a reusable swap for plastic wrap
ok — Charged: $0.0033
- 04 / REVIEWS OF THE 18-PACK
tapinall call crawl4ai.amazon.product.reviews --data '{"product":"https://www.amazon.com/dp/B08DKVZCBC","limit":12}'failed — HTTP 504 · not charged
- 05 / REVIEWS, 8
tapinall call crawl4ai.amazon.product.reviews --data '{"product":"https://www.amazon.com/dp/B08DKVZCBC","limit":8}'failed — HTTP 504 · not charged
- 06 / REVIEWS, 5
tapinall call crawl4ai.amazon.product.reviews --data '{"product":"https://www.amazon.com/dp/B08DKVZCBC","limit":5}'failed — HTTP 504 · not charged
- 07 / REVIEWS OF THE 14-PIECE SET
tapinall call crawl4ai.amazon.product.reviews --data '{"product":"https://www.amazon.com/dp/B08NCGLQNK","limit":12}'12 reviews · 6 five-star, 2 four, 2 three, 2 one-star · all verified purchases
1 star, 2026-07-17 · "They break hilariously easily" · 5 helpful votes
4 stars, 2024-10-11 · on a wet rim "it just slips off" · 11 helpful votes
1 star, 2022-10-12 · "These don't stay on anything"
5 stars, 2021-11-29 · the largest lid fit a 6 quart mixing bowl · 35 helpful votes
ok — Charged: $0.0003
TOTAL $0.0710 about $0.0018 per product read
04 / WHAT IT FOUND FROM THE RESPONSES ABOVE.
What came back.
In plain numbers.
Read straight from the responses in the run. Nothing here is a mockup.
- search results read from two pages
- 40
- stretch lid listings with 1,000+ reviews rate under 4 stars
- 5 of 9
- reviews of the 14-piece set say the lids slip off or do not fit
- 3 of 12
| Listing | Price | Rating | Reviews |
|---|---|---|---|
| 18-pack, 6 sizes | $9.83 | 3.9 | 5,089 |
| 12-pack, 6 sizes | $12.99 | 3.8 | 4,874 |
| 14-piece set, 7 sizes | $9.97 | 4.0 | 2,713 |
| 12-pack | $12.99 | 3.8 | 2,487 |
| 6-piece set | $5.97 | 3.5 | 2,306 |
| 7-pack, the #1 ad | $19.95 | 4.2 | 1,859 |
| Elastic bowl cover set | $14.99 | 3.9 | 1,697 |
| Orblue 6-pack | $8.99 | 4.3 | 1,393 |
| 4-pack can covers | $6.99 | 4.3 | 1,360 |
05 / READING THE RESULTS
What 40 search results said about stretch lids
Review count is the best public sign of past sales. 13 of the 39 different products in the results had more than 1,000 reviews, so buyers clearly exist. Prices ran from $1.79 to $24.70, with a median of $11.99.
Ratings show whether those buyers are happy. The 9 stretch lid listings with more than 1,000 reviews mostly sit between 3.5 and 4.0 stars. The two best-rated big sellers, at 4.5 stars, are flat suction lids, a related product. A popular product with middling ratings is the classic opening for a better version, if you can fix what buyers dislike.
Read the layout too. 8 of the first 20 results were paid ads, and one 7-pack showed as the #1 ad and again unpaid at #5. Two more product IDs at $16.95 carry the same 1,859 reviews, which usually means variants of one listing. Expect to pay for visibility in this niche.
06 / REVIEWS
What buyers complain about
12 reviews of the 14-piece set, the #8 result at $9.97 and 4.0 stars, named two problems. 3 say the lids slip off or do not fit, one of them only once the rim is wet, in a review 11 people marked helpful. 3 complain about quality, and a 1-star buyer says even vinegar broke the silicone down within hours. 6 of the 12 still gave 5 stars.
The run asked for the 18-pack leader first. Amazon showed no reviews on its product page, so the tool went to a slower second source, which ran past the 2 minute limit at 12, 8 and then 5 reviews. None of the three calls was billed. The same source returned 12 reviews of the 14-piece set in 35 seconds. 12 reviews are a sample, not a verdict. For a fuller read, the Amazon review analyzer run read 36 reviews across three lid sets and counted the complaints.
07 / LIMITS
What this run did not do
An Amazon search page costs $0.0337 per call, ten times a product page. Plan searches first, then open only the products worth a closer look.
- No sales or revenue estimates. Amazon does not publish unit sales, and these tools return only what the page shows.
- No search volume for the phrase on Amazon. The run measured supply, not demand.
- No fees, shipping or margin math. Give your agent a landed cost and it can do that part.
- Small review reads. A reviews call stops at about 2 minutes, so ask for 12 or fewer. Here the 18-pack timed out even at 5.
- One snapshot from 20 October 2026. Prices and ranks move, so rerun before you decide.
08 / VARIATIONS SAME TOOLS. ANOTHER JOB.
Change the market.
Keep the recipe.
Prompts that use the same tools. We have not run these, so check each price in the catalog.
Two searches at $0.0337 each. Your agent does the comparison.
One product call each at $0.0033.
09 / GOOD QUESTIONS Good questions,
Good questions,
short answers.
How do I do Amazon product research for free?
By hand. Search the phrase on Amazon, note price, stars and review count for the first two pages, then read the 1 to 3 star reviews of the leaders. It costs your time. This run did the same reading for $0.0710.
What makes a good product to sell on Amazon?
Proven demand with room to improve. Look for several listings with thousands of reviews, ratings that leave buyers wanting more, and complaints you can fix. Here the stretch lid leaders sat at 3.5 to 4.0 stars, with slipping and tearing among the complaints.
Can Claude do Amazon product research?
Yes, when it can call Amazon search, product and review tools. On its own it cannot see live listings. This run used three such tools from one prompt in Claude, Cursor or another agent.
Why did three review calls fail?
Amazon showed no reviews on the 18-pack's product page, so the tool fell back to a slower second source, which ran past the 2 minute limit at 12, 8 and 5 reviews. None was billed. 12 reviews of the 14-piece set then worked for $0.0003.
Does this show monthly sales?
No. Amazon does not publish sales, and these tools return only what the public page shows. Paid research tools estimate sales from rank. Review count is a rough stand-in.
10 / HOW YOU PAY PREPAID. NO SUBSCRIPTION.
A prepaid balance, spent per call.
Top up by card and your agent spends the balance one call at a time. This run cost $0.0710. Credits never expire, failed calls cost nothing, and every tool in the metered tool catalog shows its price before your agent calls. See per-call pricing.
11 / MORE RUNS SAME BALANCE. ANOTHER JOB.
More MCP use cases.
THE NEXT MOVE IS YOURS.
Copy the prompt.
Run it yourself. ✳
This run cost $0.0710.
No subscription. Credits never expire.