Add BuyWhere — Product Search & Price Comparison MCP plugin

[BuyWhere]

Summary

This PR adds BuyWhere to the Cursor plugin marketplace — a product search and price comparison MCP plugin covering 1.5M+ products across 20+ Southeast Asia and US e-commerce platforms.

What's included

• buywhere/.cursor-plugin/plugin.json — plugin metadata
• buywhere/mcp.json — MCP server config pointing to https://api.buywhere.ai/mcp
• buywhere/README.md — installation and usage docs
• buywhere/skills/product-search/SKILL.md — skill definition for product search, price comparison, and deal discovery
• .cursor-plugin/marketplace.json — added buywhere entry to the plugins array

MCP tools

• search_products — search across Shopee, Lazada, Amazon, Walmart, FairPrice, Carousell, and 20+ platforms
• find_best_price — compare prices across all platforms for a given product
• get_deals — surface current discounts and promotions
• list_categories — browse product categories

Coverage

Singapore, Malaysia, Thailand, Vietnam, US markets — Shopee, Lazada, Amazon, Walmart, FairPrice, Carousell, and more.

Links

• GitHub: https://github.com/BuyWhere/buywhere
• MCP endpoint: https://api.buywhere.ai/mcp
• Website: https://buywhere.ai

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Note

Low Risk
Low risk: only adds marketplace metadata/docs plus an MCP endpoint configuration; no changes to core runtime logic. Main risk is dependency on the external https://api.buywhere.ai/mcp service availability/behavior.

Overview
Adds the BuyWhere plugin to the Cursor marketplace, including new plugin metadata (buywhere/.cursor-plugin/plugin.json), docs (buywhere/README.md), and a product-search skill definition (buywhere/skills/product-search/SKILL.md).

Registers the plugin’s MCP server configuration in buywhere/mcp.json pointing to https://api.buywhere.ai/mcp, and appends a buywhere entry to .cursor-plugin/marketplace.json (also normalizing a few existing descriptions to use escaped em-dashes).

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[cursor]

Cursor Bugbot has reviewed your changes using high mode and found 1 potential issue.

^{Reviewed by Cursor Bugbot for commit 7850f6b. Configure here.}

[cursor]

UTM append instruction breaks URLs with existing params

Low Severity · Logic Bug

The UTM tracking instruction tells the agent to always append ?utm_source=cursor&utm_medium=plugin&utm_campaign=buywhere_plugin to product URLs. E-commerce URLs almost always already contain query parameters (e.g., item IDs, tracking tokens). Using a hardcoded ? delimiter on those URLs produces malformed URLs with two ? characters. The instruction needs to account for whether the URL already has a query string and use & accordingly.

 

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