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Agent skill

Amazon Buy Box Monitor

by browser-act in browser-act/skills

Pulls Amazon product details, competing seller prices and seller ratings for a given ASIN through the BrowserAct API, without browser automation.

MITAuto-check passedSales & Support

Install Amazon Buy Box Monitor

skills CLI
$ npx skills add browser-act/skills --skill amazon-buy-box-monitor-api-skill -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install browser-act/skills amazon-buy-box-monitor-api-skill --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/browser-act/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/solutions/ecommerce/amazon-buy-box-monitor-api-skill .claude/skills/amazon-buy-box-monitor-api-skill && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
amazon-buy-box-monitor-api-skill
GitHub stars
6.1k
Used in
1 other repo
Token cost
~1.6k tokens
SKILL.md length
768 words
Files
2 (incl. scripts)
Skills in repo
87
Repo updated
First seen
Licence
MIT

At a glance

Pulls Amazon product details, competing seller prices and seller ratings for a given ASIN through the BrowserAct API, without browser automation.

  • Works in 5 steps: No hallucinations, ensuring stable and… → No CAPTCHA issues: No need to handle… → No IP access restrictions or… → …
  • Checking who currently holds the buy box for a specific ASIN
  • SKILL.md covers 📖 Introduction, ✨ Features, 🔑 API Key Guidance and 🛠️ Input Parameters, plus 4 more sections
  • Runs Python scripts from its folder; calls python; reaches amazon.com and amazon.co.uk; needs BROWSERACT_API_KEY

What it does

Running the bundled script with an ASIN and an optional marketplace URL, which defaults to amazon.com, returns structured product and seller data. The description credits this to a preset workflow rather than a generative browsing agent, so it avoids CAPTCHA challenges and regional IP restrictions and runs faster and more cheaply than a purely AI-driven browsing approach.

Before anything runs, it checks the `BROWSERACT_API_KEY` environment variable; if it is missing, the only action is telling the user to get a key from the BrowserAct console and waiting, rather than proceeding another way.

When your agent uses it

  • Checking who currently holds the buy box for a specific ASIN
  • Comparing a product's price across different Amazon sellers
  • Tracking a competitor's fulfillment method and seller rating

Example prompts

  • “Check the current buy box owner and price for ASIN B005O2ZU68.”
  • “Pull seller ratings and feedback counts for this product on amazon.co.uk.”
  • “Monitor this ASIN's buy box status and flag if another seller takes it.”

Requirements

  • A BrowserAct API key (`BROWSERACT_API_KEY`)
  • Python to run the bundled script

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. No hallucinations, ensuring stable and accurate data extraction: Pre-set workflows avoid AI generative hallucinations.
  2. No CAPTCHA issues: No need to handle reCAPTCHA or other verification challenges.
  3. No IP access restrictions or geo-fencing: No need to handle regional IP restrictions.
  4. More agile execution speed: Faster task execution compared to purely AI-driven browser automation solutions.
  5. Extremely high cost-effectiveness: Significantly reduces data acquisition costs compared to AI solutions that consume massive amounts of…

What it can do on your machine

Read from SKILL.md and the folder at commit 11c057b. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 1 file in scripts/ (Python), which the agent can run.

    Shell commands in SKILL.md call:

    • python

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • amazon.com
    • amazon.co.uk

    Also links to:

    • browseract.com

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • BROWSERACT_API_KEY

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Amazon Buy Box Monitor loads about 1.6k tokens when it runs. Until then it costs about 171 tokens; SKILL.md has 768 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~171
When it runs · the whole SKILL.md, loaded when a task matches
~1.6k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from browser-act/skills at commit 11c057b, republished under its MIT licence (© browser-act). 768 words, ~1,593 tokens.

Download SKILL.mdSave it as .claude/skills/amazon-buy-box-monitor-api-skill/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
amazon-buy-box-monitor-api-skill
description
This skill helps users extract basic product details other sellers prices and seller ratings from Amazon via ASIN automatically using the BrowserAct API. Agent should proactively apply this skill when users express needs like query Amazon buy box information, monitor Amazon product prices, extract Amazon product details by ASIN, check other sellers prices on Amazon, get Amazon seller ratings and feedback count, monitor buy box ownership for a specific ASIN, track Amazon fulfillment methods for competitors, compare Amazon product prices across different sellers, retrieve Amazon buy box availability status, analyze Amazon seller profile details.

Amazon Buy Box Monitor API Skill

📖 Introduction

This skill provides users with an automated Amazon Buy Box monitoring service using the BrowserAct API template. It can directly extract structured data including basic product details, other sellers' prices, and seller ratings from Amazon via a specific ASIN. No coding or proxies are required, and users only need to provide the ASIN and an optional marketplace URL to retrieve clean and usable data.

✨ Features

  1. No hallucinations, ensuring stable and accurate data extraction: Pre-set workflows avoid AI generative hallucinations.
  2. No CAPTCHA issues: No need to handle reCAPTCHA or other verification challenges.
  3. No IP access restrictions or geo-fencing: No need to handle regional IP restrictions.
  4. More agile execution speed: Faster task execution compared to purely AI-driven browser automation solutions.
  5. Extremely high cost-effectiveness: Significantly reduces data acquisition costs compared to AI solutions that consume massive amounts of tokens.

🔑 API Key Guidance

Before running, you must check the BROWSERACT_API_KEY environment variable. If it is not set, do not take any other actions; you must prompt and wait for the user to provide it. The Agent must inform the user at this time:

"Since you have not configured the BrowserAct API Key, please go to the BrowserAct Console first to get your Key."

🛠️ Input Parameters

When calling the script, the Agent should flexibly configure the following parameters based on the user's needs:

  1. ASIN

    • Type: string
    • Description: The Amazon Standard Identification Number. This is the unique identifier for the product on Amazon.
    • Example: B005O2ZU68
    • Required: Yes

  2. Marketplace_url

    • Type: string
    • Description: The Amazon marketplace URL indicating the region.
    • Default value: https://amazon.com/
    • Example: https://amazon.co.uk/
    • Required: Yes

The Agent should execute the following standalone script to achieve "one command to get results":

bash
# Example invocation
python -u ./scripts/amazon_buy_box_monitor_api.py "ASIN" "Marketplace_url"
⏳ Running Status Monitoring

Since this task involves automated browser operations, it may take some time (several minutes). The script will continuously output status logs with timestamps while running (e.g., [14:30:05] Task Status: running). Agent Instructions:

  • While waiting for the script to return results, please keep paying attention to the terminal output.
  • As long as the terminal is still outputting new status logs, it means the task is running normally. Do not misjudge it as deadlocked or unresponsive.
  • If the status remains unchanged for a long time or the script stops outputting without returning a result, then consider triggering the retry mechanism.

📊 Data Output Description

After successful execution, the script will parse and print the result directly from the API response. The result includes:

  • asin: The Amazon Standard Identification Number
  • product_title: The title of the product
  • buy_box_owner: The owner of the buy box
  • buy_box_price: The current buy box price
  • currency: The currency of the price
  • fulfillment_method: The fulfillment method (e.g., FBA, FBM)
  • availability_status: Stock availability status
  • other_sellers: An array of other sellers including their name, price, shipping fee, and seller rating
  • seller_info: Detailed information about the main seller including rating and feedback count
Show full SKILL.md (285 more words)Show less

⚠️ Error Handling & Retry

If an error is encountered during the execution of the script (such as network fluctuations or task failure), the Agent should follow this logic:

  1. Check output content:

    • If the output contains "Invalid authorization", it means the API Key is invalid or expired. In this case, do not retry, but guide the user to re-check and provide the correct API Key.
    • If the output does not contain "Invalid authorization" but the task fails (e.g., output starts with Error: or returns empty results), the Agent should automatically attempt to execute the script once more.

  2. Retry limits:

    • Automatic retry is limited to only once. If the second attempt still fails, stop retrying and report the specific error message to the user.

🌟 Typical Use Cases

  1. Query Amazon buy box information: Find out who currently owns the buy box for a specific ASIN.
  2. Monitor Amazon product prices: Track the current price and buy box price changes.
  3. Extract Amazon product details by ASIN: Get basic product information like title and brand.
  4. Check other sellers prices on Amazon: Analyze pricing strategies of competitors for the same product.
  5. Get Amazon seller ratings and feedback count: Evaluate the reputation of sellers on the listing.
  6. Monitor buy box ownership for a specific ASIN: Check if a particular seller maintains the buy box.
  7. Track Amazon fulfillment methods for competitors: Determine whether competitors are using FBA or FBM.
  8. Compare Amazon product prices across different sellers: View shipping fees and total prices from multiple sellers.
  9. Retrieve Amazon buy box availability status: Check if the product is in stock or backordered.
  10. Analyze Amazon seller profile details: Extract detailed seller info and recent feedback summaries.

© browser-act, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (scripts) in solutions/ecommerce/amazon-buy-box-monitor-api-skill of browser-act/skills.

  • SKILL.md
  • scripts/amazon_buy_box_monitor_api.py

Open the folder on GitHubat commit 11c057b

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in browser-act/skills, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Amazon Buy Box Monitor next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

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Amazon Buy Box Monitor this skillbrowser-act/skills6.1k1 repos~1.6kAutomated safety check: PassMIT
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Zach Feature Demand Validatorzach22-1999/amazon-skills2091 repos~2.3kAutomated safety check: NotesMIT
Caramel CouponsDevinoSolutions/caramel141—~1.1kAutomated safety check: PassAGPL-3.0
Zach Sif Cvr Threshold Analyzerzach22-1999/amazon-skills2091 repos~982Automated safety check: NotesMIT

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  • Amazon Product Search Extractor

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Categories

Questions about Amazon Buy Box Monitor

What does Amazon Buy Box Monitor do?

Pulls Amazon product details, competing seller prices and seller ratings for a given ASIN through the BrowserAct API, without browser automation. com, returns structured product and seller data. The description credits this to a preset workflow rather than a generative browsing agent, so it avoids CAPTCHA challenges and regional IP restrictions and runs faster and more cheaply than a purely AI-driven browsing approach.

When should I use Amazon Buy Box Monitor?

Amazon Buy Box Monitor fits situations like: checking who currently holds the buy box for a specific ASIN; comparing a product's price across different Amazon sellers; tracking a competitor's fulfillment method and seller rating.

How do I install Amazon Buy Box Monitor in Claude Code?

Run `npx skills add browser-act/skills --skill amazon-buy-box-monitor-api-skill -a claude-code`. Or copy the skill folder (solutions/ecommerce/amazon-buy-box-monitor-api-skill in browser-act/skills) into .claude/skills/amazon-buy-box-monitor-api-skill in your project. Claude Code loads it when a task matches its description.

How do I install Amazon Buy Box Monitor in Codex?

Run `npx skills add browser-act/skills --skill amazon-buy-box-monitor-api-skill -a codex`. Or copy the skill folder (solutions/ecommerce/amazon-buy-box-monitor-api-skill in browser-act/skills) into .agents/skills/amazon-buy-box-monitor-api-skill in your project. Codex loads it when a task matches its description.

Can I use Amazon Buy Box Monitor in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add browser-act/skills --skill amazon-buy-box-monitor-api-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/amazon-buy-box-monitor-api-skill, .gemini/skills/amazon-buy-box-monitor-api-skill, .github/skills/amazon-buy-box-monitor-api-skill and .opencode/skills/amazon-buy-box-monitor-api-skill in your project.

What does Amazon Buy Box Monitor need to run?

Going by SKILL.md and its folder, Amazon Buy Box Monitor needs Python for the scripts in its folder, the command-line tools its instructions call (python) and credentials named BROWSERACT_API_KEY. Our summary lists: A BrowserAct API key (`BROWSERACT_API_KEY`); Python to run the bundled script.

Does Amazon Buy Box Monitor access the network?

SKILL.md names 3 domains. In commands or code: amazon.com and amazon.co.uk; the agent is likely to contact these when it follows the instructions. As links in the text: browseract.com. This is read from the text; nothing was executed.

Is Amazon Buy Box Monitor safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Amazon Buy Box Monitor use?

Amazon Buy Box Monitor is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Amazon Buy Box Monitor use?

About 1.6k tokens (SKILL.md is roughly 6.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Amazon Buy Box Monitor?

Skills that share tags, products or a category with Amazon Buy Box Monitor: Tourmind Booking (tourmind-com/Tourmind-Booking-Skills, 1.8k stars), Ecommerce Image Suite (wzj177/ecommerce-image-suite, 449 stars), Zach Feature Demand Validator (zach22-1999/amazon-skills, 209 stars) and Caramel Coupons (DevinoSolutions/caramel, 141 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Amazon Buy Box Monitor?

browser-act (a GitHub organization) maintains it in browser-act/skills, which has 6,126 GitHub stars. The repository holds 87 skills in this directory. The repository was last updated on August 24, 2026.

Source: browser-act/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.