Build an AI Agent That Finds the Cheapest PlayStation 5 in Singapore — Live Pricing via MCP

Shopping for a PlayStation 5 in Singapore? Prices vary wildly between FairPrice, Lazada, Shopee, Courts, and Challenger — by SGD 80-150 on any given day.

Instead of checking 7 tabs manually, let your AI agent do it. Here's how to build a 30-line agent that searches live prices across Singapore's major retailers using BuyWhere MCP.

What You'll Build

A Claude-powered agent that:

1. Searches PS5 prices across 7+ Singapore retailers in real time
2. Returns the cheapest option with merchant name and price
3. Can answer follow-up questions like "what about Xbox?"

Step 1: Get BuyWhere MCP running

Add BuyWhere to your Claude Desktop config:

{
  "mcpServers": {
    "buywhere": {
      "command": "npx",
      "args": ["@buywhere/mcp-server"],
      "env": {
        "BUYWHERE_API_KEY": "<your-key>"
      }
    }
  }
}

Get a free API key at buywhere.ai/api-keys.

Step 2: Ask the agent

Once configured, just ask:

"Find me the cheapest PlayStation 5 in Singapore right now. Include the price, merchant, and direct URL for each option."

BuyWhere responds with live data from FairPrice, Lazada, Shopee, Courts, Challenger, Best Denki, and Harvey Norman — all in real time, no scraping.

Step 3: Keep going

Because it's an MCP tool, you can chain follow-ups:

• "Which one has free delivery?"
• "Compare PS5 Digital vs Disc edition prices"
• "Set a price alert for when it drops below SGD 700"

Why This Matters

Traditional price comparison sites are static — they scrape on a schedule and show stale data. BuyWhere gives AI agents live inventory-level pricing from each merchant's actual API.

For developers: the same MCP server powers automated deal alerts, multi-merchant order bots, and cross-border price arbitrage agents.

Try it: buywhere.ai | npm: @buywhere/mcp-server | Docs: docs.buywhere.ai