BuyWhere API

The product catalog API for AI agent commerce — search, compare, and track prices across 40+ retailers in Southeast Asia and the US.

Overview

BuyWhere is an agent-native product catalog API indexing 5M+ products from 40+ retailers across Singapore, Malaysia, Indonesia, Thailand, the Philippines, Vietnam, and the United States. It is purpose-built for AI shopping agents: BM25-ranked search, structured price comparison, deals discovery, and affiliate link tracking out of the box. The API is MCP-compatible and works with Claude Desktop, Cursor, LangChain, CrewAI, and any MCP-enabled AI client.

Quick Start

Get an API key at buywhere.ai/api-keys, then:

export BUYWHERE_API_KEY="bw_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
export BUYWHERE_BASE_URL="https://api.buywhere.ai"

Search products across platforms

curl -sS --get "$BUYWHERE_BASE_URL/v1/products" \
  -H "Authorization: Bearer $BUYWHERE_API_KEY" \
  --data-urlencode "q=wireless headphones" \
  --data-urlencode "limit=5"

Get a specific product by ID

curl -sS "$BUYWHERE_BASE_URL/v1/products/78234" \
  -H "Authorization: Bearer $BUYWHERE_API_KEY"

Deals feed — biggest discounts right now

curl -sS --get "$BUYWHERE_BASE_URL/v1/deals" \
  -H "Authorization: Bearer $BUYWHERE_API_KEY" \
  --data-urlencode "min_discount=20" \
  --data-urlencode "limit=10"

🏆 Build With BuyWhere Challenge — Win $1,188 in API Credits

Build an AI agent using BuyWhere MCP tools and win API credits, featured placement, and a Built With BuyWhere badge.

Tools: search_products, get_product, compare_prices, find_deals, browse_categories, get_category_products, get_deals

Timeline: Submissions open through May 19, 2026

Enter the Challenge → | Quick Start | MCP Setup

MCP Integration

BuyWhere is listed in the awesome-mcp-servers registry. Connect to Claude Desktop, Cursor, Windsurf, or any MCP-compatible AI client in seconds.

Install the MCP server:

pip install httpx mcp
python /path/to/buywhere-api/mcp_server.py

Claude Desktop — add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "buywhere": {
      "command": "python",
      "args": ["/path/to/buywhere-api/mcp_server.py"],
      "env": {
        "BUYWHERE_API_KEY": "your_api_key_here",
        "BUYWHERE_API_URL": "https://api.buywhere.ai"
      }
    }
  }
}

Cursor — add to Cursor settings → MCP servers using the same JSON config above.

Available MCP tools: search_products, get_product, compare_prices, get_deals, find_deals, browse_categories, get_category_products.

Documentation

| Resource | Description | |---|---| | API Documentation | Full endpoint reference, authentication, error codes | | API Examples | Worked examples for common agent use cases | | Quickstart Guide | First query in under 5 minutes | | AI Agent Framework Guide | LangChain, Claude, and GPT integration patterns for BuyWhere | | Developer FAQ | Common auth, search, category, and rate-limit fixes | | Release Notes v1.0 | What shipped in the GA release | | MCP Setup | MCP server configuration for AI clients | | API Healthcheck Monitor | Synthetic monitoring for /v1/search and /v1/products |

Catalog Coverage

| Region | Retailers | |---|---| | Singapore | Shopee SG, Lazada SG, Amazon SG, Carousell SG, Zalora SG, Qoo10 SG, Courts, Challenger, FairPrice / FairPrice Xtra, Watsons SG, Harvey Norman, Gain City, Popular, Don Don Donki, IKEA SG, Decathlon SG, Uniqlo SG, Sephora SG, and more | | Malaysia | Shopee MY, Lazada MY, Zalora MY, Watsons MY, Carousell MY | | Indonesia | Shopee ID, Tokopedia, Bukalapak, Zalora ID | | Thailand | Shopee TH, Lazada TH, Central TH | | Philippines | Shopee PH, Lazada PH, Zalora PH | | Vietnam | Shopee VN, Tiki, Sendo | | United States | Amazon US, Walmart, Target, Costco, Best Buy, Chewy, Wayfair, Etsy, Ulta, Zappos, REI, and more | | Australia | Amazon AU, Catch, Big W, Bunnings, Coles, Officeworks | | Japan / Korea | Rakuten, Amazon JP, Yodobashi, Daiso JP, Coupang (KR) |

Rate Limits

| Tier | Key Prefix | Limit | Use Case | |---|---|---|---| | Free | bw_free_ | 60 req/min | Development and testing | | Live | bw_live_ | 600 req/min | Production | | Partner | bw_partner_* | Unlimited | Data partners |

Rate limit status is returned in response headers (X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset). On 429 Too Many Requests, use exponential backoff starting at 2 seconds.

Self-Hosted / Contributing

BuyWhere is a Python/FastAPI service backed by PostgreSQL and Redis, with platform-specific scrapers deployed as ECS Fargate tasks. The scraping pipeline handles 40+ platforms concurrently using distributed Redis locks, NDJSON normalization, and BM25-ranked search via PostgreSQL FTS5.

Architecture details: SCRAPING_ARCHITECTURE.md

# Local development
docker-compose up
# API available at http://localhost:8000

BuyWhere Product Catalog