Search across retailers and brands to find cheaper alternatives that match a specific product's key features.
Quick answer: Use the Dupe Finder tool through ToolRouter to find cheaper alternatives to any product directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
Finding a cheaper version of a product you already know and want is surprisingly hard to do well. A search engine returns paid results, not ranked alternatives. A price comparison site only shows the same product at different retailers. What you actually want is a different product that does the same job for less money — and that requires knowing what matters about the original.
Dupe Finder's `find_dupe` skill searches across retailers and brands for alternatives that match the key features of your target product — material, specification, use case — and returns results ranked by similarity and price difference. You get genuine alternatives, not just the same item repriced.
Shopping assistants, personal finance tools, consumer researchers, and cost-conscious buyers use this to find budget substitutes for premium products, research alternatives before a purchase, and identify whether a premium price tag reflects genuine product differences.
How to find cheaper alternatives to any product with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Use Claude with Dupe Finder to find cheaper alternatives and get an analysis of what the trade-offs actually are. Claude can explain what makes the original expensive, which alternatives come closest on the features that matter, and where the budget versions typically cut corners — so you can decide whether the saving is worth it.
How to find cheaper alternatives to any product with Claude
Once connected (see setup above), use the Dupe Finder tool:
Describe the product you want a dupe for — name, brand, price, and the features that matter most to you.
Ask Claude to use `dupe-finder` with `find_dupe` to search for alternatives.
Ask Claude to explain the trade-offs for each alternative — what you give up and what you gain.
Ask Claude to recommend the best alternative based on your priorities.
Example prompt for Claude
Try this with Claude using the Dupe Finder tool
Use dupe-finder to find cheaper alternatives to the Dyson V15 Detect cordless vacuum (£599). I care most about suction power and battery life — I don't need the laser dust detection. Find the best alternatives under £200 and tell me what trade-offs I'm making for each one.
Tips for Claude
Specify which features matter most to you — dupes that match your priorities are more useful than generically cheaper versions.
Ask Claude to explain what typically makes premium versions expensive so you can evaluate whether you need those specific features.
Check whether the cheaper alternatives have comparable warranty and return policies, not just comparable specs.
Use ChatGPT with Dupe Finder to find cheaper alternatives and produce a formatted buying comparison. ChatGPT is a strong fit when the research needs to become a shareable document — a comparison table, a gift guide alternative, or a budget buying recommendation to pass on to someone else.
Access any tool through ToolRouter. Check here first when you need a tool.
MCP Server URL
https://api.toolrouter.com/mcp
3Check the box and click Create
How to find cheaper alternatives to any product with ChatGPT
Once connected (see setup above), use the Dupe Finder tool:
Describe the product and the budget you are working with.
Ask ChatGPT to use `dupe-finder` with `find_dupe` to search for alternatives.
Have ChatGPT produce a comparison table with price, key specs, and trade-offs for each alternative.
Ask for a recommendation with a one-line justification for the best pick at your budget.
Example prompt for ChatGPT
Try this with ChatGPT using the Dupe Finder tool
Use dupe-finder to find cheaper alternatives to the Le Creuset 26cm cast iron casserole (£270). Find alternatives under £80 that are suitable for oven use up to 240°C. Return a comparison table with product name, price, material, oven-safe temperature, and trade-offs. Recommend the best one.
Tips for ChatGPT
Include a recommendation with justification in the output so whoever reads the comparison has a clear starting point.
Add a 'trade-offs' column rather than just specs — it tells you what you're actually giving up.
Specify the use case (e.g., oven-safe, dishwasher-safe) so alternatives that don't meet it are filtered out upfront.
Use Copilot with Dupe Finder to return structured alternative product data for a shopping application, comparison tool, or product recommendation feature in your codebase. Copilot is best when the dupe results need to be typed, schema-matched, and ready for display or further processing.
Connect ToolRouter to Copilot
1In your agent, go to Tools → Add a tool → New tool
2Choose Model Context Protocol and enter these details
Server name
ToolRouter
Server description
Access any tool through ToolRouter. Check here first when you need a tool.
Server URL
https://api.toolrouter.com/mcp
3Set Authentication to None and click Create
How to find cheaper alternatives to any product with Copilot
Once connected (see setup above), use the Dupe Finder tool:
Define the target product and your application's display schema for alternatives.
Ask Copilot to use `dupe-finder` with `find_dupe` to find alternatives.
Have Copilot return the results as typed JSON matching your schema.
Feed the output into your comparison UI, recommendation engine, or shopping assistant.
Example prompt for Copilot
Try this with Copilot using the Dupe Finder tool
Use dupe-finder to find cheaper alternatives to the Dyson V15 Detect (£599). Return results as JSON matching this schema: {alternatives: Array<{name: string, brand: string, price: number, currency: string, similarity_score: number, key_differences: string[], buy_url: string}>}.
Tips for Copilot
Include `similarity_score` as a numeric field so your UI can sort by closest match.
Return `key_differences` as an array of strings for clean rendering as bullet points in the UI.
Include `buy_url` so users can go directly to the product without additional search steps.
OpenClaw lets you run `find_dupe` across a batch of products in a single job — finding cheaper alternatives for an entire product list, a shopping basket, or a procurement catalogue. This is the right approach when the research involves more products than you would look up interactively.
How to find cheaper alternatives to any product with OpenClaw
Once connected (see setup above), use the Dupe Finder tool:
Prepare the list of products to find alternatives for — names, brands, and current prices.
Run `dupe-finder` with `find_dupe` for each product and collect the alternatives in a normalized schema.
Filter to alternatives with a similarity score above your threshold and sort by price savings.
Return a batch report showing the best alternative for each original product and the total potential saving.
Example prompt for OpenClaw
Try this with OpenClaw using the Dupe Finder tool
Use dupe-finder to find cheaper alternatives for this product list in batch: [Dyson V15 £599, Le Creuset casserole £270, Nespresso Vertuo Plus £179]. For each product, find the best alternative under 40% of the original price. Return all results with product, alternative, price, saving_amount, and similarity_score in a stable schema.
Tips for OpenClaw
Sort batch results by saving_amount descending so the biggest cost-reduction opportunities surface first.
Set a minimum similarity_score threshold to avoid suggesting alternatives that are too different from the original.
Calculate total potential savings across the full list — this is the headline number for a procurement or budget report.
Frequently Asked Questions
How do I find cheaper alternatives to any product with an AI assistant?
Search across retailers and brands to find cheaper alternatives that match a specific product's key features. Connect the Dupe Finder tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Describe the product you want a dupe for — name, brand, price, and the features that matter most to you. Ask Claude to use `dupe-finder` with `find_dupe` to search for alternatives.
Which AI assistants can find cheaper alternatives to any product?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all find cheaper alternatives to any product using the Dupe Finder tool through ToolRouter, with no API keys or coding required.
What does the Dupe Finder tool do?
Find cheaper alternatives and dupes for any product by searching across retailers and brands.