# Zinc Blog

> Engineering and product writing from the team building Zinc.

Every page below supports `Accept: text/markdown` content negotiation, and is
also addressable with a `.md` suffix (e.g. `https://www.zinc.com/blog.md`).
The full site index is at https://www.zinc.com/llms.txt.

## Pages
- [Agentic Commerce in 2026: Where We Stand & What's Next](https://www.zinc.com/blog/agentic-commerce)
- [AI Agent Checkout API: How to Pick ACP vs Retail (2026)](https://www.zinc.com/blog/ai-agent-checkout-api)
- [How to Build an AI Gift Finder That Actually Buys (2026)](https://www.zinc.com/blog/ai-gift-finder-that-buys)
- [10 AI Shopping Prompts for Zinc API](https://www.zinc.com/blog/ai-shopping-prompts)
- [Amazon Shopping API: How to Buy Programmatically (2026)](https://www.zinc.com/blog/amazon-api)
- [How to Build an Amazon Price Tracker That Auto-Buys (2026)](https://www.zinc.com/blog/amazon-price-tracker-auto-buy)
- [How to Buy from Amazon, Walmart & Target via API (2026)](https://www.zinc.com/blog/amazon-walmart-target-api)
- [How to Automate Orders Across Ecommerce Sites (2026)](https://www.zinc.com/blog/automate-orders-across-sites)
- [How to Automate Secret Santa: Match, Buy & Ship (2026)](https://www.zinc.com/blog/automate-secret-santa)
- [7 Best Ecommerce Purchasing APIs for Developers (2026)](https://www.zinc.com/blog/best-ecommerce-purchasing-apis)
- [Best MCP Servers for Retail & Online Shopping (2026)](https://www.zinc.com/blog/best-mcp-servers-for-retail)
- [10 Best Returns Management Software for Ecommerce (2026)](https://www.zinc.com/blog/best-returns-management-software)
- [How to Buy Products Online with AI: APIs, Agents & MCP (2026)](https://www.zinc.com/blog/buy-products-online-with-ai)
- [Can AI Buy Things Online? What Works in 2026](https://www.zinc.com/blog/can-ai-buy-things-online)
- [How to Automate Corporate Gifting With an API](https://www.zinc.com/blog/corporate-gifting-api)
- [How to Automate Employee Rewards Fulfillment (2026)](https://www.zinc.com/blog/employee-rewards-fulfillment-api)
- [How to Build an AI Shopping Agent: Step-by-Step Guide](https://www.zinc.com/blog/how-to-build-ai-shopping-agent)
- [What Is HTTP 402 Payment Required? A Complete Guide](https://www.zinc.com/blog/http-402-agentic-commerce)
- [Zinc MPP Integration: Agents Buy Online, No Setup](https://www.zinc.com/blog/mpp)
- [MPP vs x402: Which Agent Payment Protocol to Use?](https://www.zinc.com/blog/mpp-vs-x402)
- [Multi-Product Ordering API: Order Multiple SKUs Across Retailers at Scale](https://www.zinc.com/blog/multi-product-ordering)
- [How to Automate New Hire Welcome Gifts (2026)](https://www.zinc.com/blog/new-hire-welcome-gifts)
- [Order Fulfillment vs Purchasing API: Which to Use (2026)](https://www.zinc.com/blog/order-fulfillment-vs-purchasing-api)
- [Price & Stock Comparison API: Compare and Buy (2026)](https://www.zinc.com/blog/price-stock-comparison-api)
- [Procurement Automation API: Build Internal Buying Workflows](https://www.zinc.com/blog/procurement-automation-api)
- [Programmatic Returns API: How to Handle Refunds (2026)](https://www.zinc.com/blog/programmatic-returns-api)
- [Scale Dropshipping Without Hiring (2026)](https://www.zinc.com/blog/scale-dropshipping-without-hiring)
- [How to Send Donuts or Postcards via API](https://www.zinc.com/blog/send-physical-gifts-via-api)
- [Shipment Tracking API for Developers: Polling, Webhooks, and Multi-Retailer Tracking (2026)](https://www.zinc.com/blog/shipment-tracking-api)
- [Zinc API Sandbox: Test Ecommerce Integrations Without Real Orders](https://www.zinc.com/blog/test-mode)
- [Order Tracking Across Every Retailer: Automatic Carrier & Tracking Numbers](https://www.zinc.com/blog/tracking)
- [Universal Checkout: Payments vs Buying (2026)](https://www.zinc.com/blog/universal-checkout-api)
- [Walmart Shopping API: The Ultimate Guide to Programmatic Buying (2026)](https://www.zinc.com/blog/walmart-api)
- [Web Scraping vs Ecommerce API: Data and Buying (2026)](https://www.zinc.com/blog/web-scraping-vs-ecommerce-api)
- [Zinc Order Webhooks: Real-Time Order Status Updates](https://www.zinc.com/blog/webhooks)
- [What Is ACP? The Agentic Commerce Protocol Explained](https://www.zinc.com/blog/what-is-acp)
- [What Is an AI Shopping Agent?](https://www.zinc.com/blog/what-is-an-ai-shopping-agent)
- [What Is AP2? The Agent Payments Protocol Explained](https://www.zinc.com/blog/what-is-ap2)
- [What Is MPP? A Developer's Guide to Machine Payments](https://www.zinc.com/blog/what-is-mpp)
- [Zinc 2.0: Universal Ecommerce API to Buy from Any URL (Beta)](https://www.zinc.com/blog/zinc-2-0)
- [Zinc GPT: Open-Source AI Shopping Agent with Checkout](https://www.zinc.com/blog/zinc-gpt)