Alternatives
Products that do what Arbitra - Reselling Price Comparison does
Compare Amazon to Mercari & Yahoo Auctions prices instantly
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15 MCP tools. 27 retailers. Search, compare, buy
May 2026 · cli-market.dev
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2019 · unitprice.org
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Hey HN! I'm excited to announce the launch of my new project - OneClickCompare. Compare prices from Amazon, eBay, and AliExpress in seconds with OneClickCompare. Simply search for any product and instantly find the lowest prices in one place. Save time and money today! I will continue to improve this and would love to get your feedback / suggestions! :)
2025 · oneclickcompare.com
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Hey HN - my friend and I built Prediction Hunt, a site that aggregates data from prediction markets like Kalshi, Polymarket, and PredictIt into one simple dashboard. It updates every few minutes, shows probabilities for each event, and even highlights arbitrage opportunities when markets disagree. I made it after getting tired of flipping between tabs just to see how each market was pricing the same question. Would love feedback on the product, data accuracy, and any ideas for what you'd want to see next.
Oct 2025 · predictionhunt.com
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2014 · oddprices.com
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Hey HN, I built Underpriced AI to solve a problem I had as a part-time reseller: standing in a thrift store trying to figure out if something is worth buying. How it works: - Snap a photo of any item - AI identifies the brand, model, maker, era, etc. - Pulls recent sold prices from eBay and other marketplaces - Gives you an instant valuation with confidence score You can also generate SEO-optimized eBay listings and publish directly from the app. Tech stack: Next.js, Claude API for vision/analysis, eBay API for market research and listing. The "Quick Scan" feature is designed for mobile…
Jan 2026 · underpricedai.com
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Hi HN! Agora is an AI search engine for e-commerce products. We've indexed 21 million products sold on 62,000 different Shopify and WooCommerce stores and made them easy for customers to search and purchase. Think of a decentralized Amazon. I originally built Agora as a side project and launched it here on HN. The search took 5 - 10 seconds to return results and the app looked like it was designed in MS Paint (by yours truly). https://news.ycombinator.com/item?id=38635695 Since the MVP launch, here are a few technical challenges that we've been working on: 1. Figured out how…
2025 · searchagora.com
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Hi HN! I'm building Agora, an AI search engine for e-commerce that returns results in under 300ms. We've indexed 30M products from 100k stores and made them easy to purchase using AI agents. After launching here on HN, a large enterprise reached out to pay for access to the raw data. We serviced the contract manually to learn the exact workflow and then decided to productize the "Data Connector" to help us scale to more customers. The Data Connector enables developers to select any of our 100k stores in the index, view sample data, format the output, and export the up-to-date data. Data can…
2025 · searchagora.com
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