How to compare espresso machines across Amazon and Walmart

You have $500 to spend on an espresso machine and want to compare Amazon US with Walmart US. Ask your agent to find a few models, compare matching listings, then read reviews before you choose which machine to buy

This example keeps the research to three models. The finished comparison should show each model's store prices, what reviewers liked or disliked, and links you can open before purchasing

Set up https://purrkey.app/SKILL.md. Compare espresso machines below
$500 on Amazon US and Walmart US. Inspect current tools and prices.
Search each store once. Exclude accessories and choose up to three
models; compare the same model, variant and bundle across stores.
For each selected model with an Amazon ASIN, request up to ten recent
reviews once. Search Reddit once per selected model. Do not paginate.
Return store links and prices, review highlights with sources, and
any missing shipping or tax information. Show tool costs separately.

Find machines in both stores

Start with anyapi.amazon.search. It takes a search-page URL such as https://www.amazon.com/s?k=espresso+machine; ask for up to 20 results. Check that the results are machines, since the same search can also return filters, cleaning kits and other accessories

Amazon Search tool. Source: Purrkey tool directory, captured November 5, 2026

Next, use anyapi.walmart.search with query: espresso machine, maxPrice: 500 and page 1, after the agent checks the current inputs. Walmart uses a keyword rather than Amazon's search-page URL

Walmart Search tool. Source: Purrkey tool directory, captured November 5, 2026

Choose up to three models from the listings. Compare prices across stores only when the model, variant, condition and included accessories match. A machine sold with a grinder is a different offer from the machine alone. Keep unmatched offers separate

For each price, keep the store link and seller when available. If shipping or tax is missing, mark it for checking on the store page before treating the machine as within the $500 budget

Read reviews for the selected models

For a selected model listed on Amazon, pass its ASIN or product URL to anyapi.amazon.reviews. Request up to ten recent reviews in one call. An ASIN is Amazon's product identifier; a Walmart listing cannot replace it

Amazon Reviews tool. Source: Purrkey tool directory, captured November 5, 2026

Ask the agent to summarize the advantages and problems mentioned in those reviews, keeping a reference for each point. If a reviewer describes difficult cleaning, include what they found difficult. If they do not explain it, retain that uncertainty instead of turning the comment into a general claim about the machine

Then use anyapi.reddit.search once per selected model, searching its exact name. Read relevant discussions alongside the Amazon review summary. Check the model in each discussion so a complaint about another version does not end up in this machine's comparison

Reddit Search tool. Source: Purrkey tool directory, captured November 5, 2026

Put prices and review notes beside each model

Ask for one comparison row per model, with matching store offers in separate columns. Include the model and bundle, Amazon and Walmart prices and links, review highlights, Reddit references, and anything still needed to confirm the delivered price

You can then compare the purchase tradeoffs: a lower price, a different bundle or a maintenance concern worth checking. Keep the review sample size beside the summary; ten reviews can show what those reviewers experienced, but cannot establish a product-wide failure rate

Estimated tool cost for three models

The public Purrkey listings captured November 5, 2026 give this allowance:

The displayed-rate sum is $0.68595. It assumes three models with Amazon listings, one review call and one Reddit search per model, and no pagination. Fewer models or missing Amazon listings reduce the planned calls. The review allowance uses the listed maximum per call; requesting ten reviews does not establish a proportional discount. Agent model fees are excluded

Start with the Amazon tools and Walmart search and use the prompt above with your purchase budget