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News
Product updates, launch announcements, and what we’re shipping next.
Zinc MPP: Let Your Agent Buy Anything Online
We integrated the Machine Payments Protocol so your agent can place orders through Zinc. No account, no API key, no setup required.
- 3/26/2026
Launch Week Day 5: Zinc GPT
An open-source shopping assistant powered by Zinc.
- 1/23/2026
Launch Week Day 4: Tracking
Know exactly where your orders are. Across every retailer we support.
- 1/22/2026
Launch Week Day 3: Webhooks
Real-time notifications when your orders update. No more polling.
- 1/21/2026
Launch Week Day 2: Test Mode
A full sandbox environment to build and test your integration without placing real orders.
- 1/20/2026
Launch Week Day 1: Buying from Multiple Retailers at Scale
One API call. Multiple SKUs. Multiple quantities. Target, Walmart, Home Depot, and more.
- 1/19/2026
Zinc 2.0
Three updates on the next decade of Zinc
- 8/13/2025
Case Studies
How teams use Zinc in production, implementation stories and outcomes.
Abunda
Learn how Abunda launched in record time, automated 60% of order fulfillment, and processed over 40,000 orders through Zinc’s API.
- 8/14/2025
Guides
Tutorials and deep dives on APIs, agentic commerce, and integrations.
Agentic Commerce in 2026: The Complete Developer Guide
Agentic commerce lets AI agents buy on your behalf. Here's the 3-layer stack, the protocols powering it, and what's actually live in production today.
- 4/16/2026
How to Build an AI Shopping Agent: Step-by-Step Guide
Build an AI shopping agent that actually completes purchases, not just suggests them. Full walkthrough with Claude, MCP tools, Zinc for order execution, and MPP for payments.
- 4/16/2026
What Is HTTP 402 Payment Required? A Complete Guide
HTTP 402 was reserved in 1997 and unused for 30 years. Here's the history, the current revival via x402 and MPP, and why it's becoming the foundation of agentic commerce.
- 4/16/2026
MPP vs x402: Which Agent Payment Protocol to Use?
MPP (Stripe + Tempo) and x402 (Coinbase) both revive HTTP 402 for agent payments. Here is a technical comparison and when to use each, with code.
- 4/16/2026
What Is ACP? The Agentic Commerce Protocol Explained
ACP is the open protocol for agent-to-merchant checkout from Stripe and OpenAI. Here's how it works, its four endpoints, Shared Payment Tokens, and what it can't do.
- 4/16/2026
What Is AP2? The Agent Payments Protocol Explained
AP2 is Google's open protocol for authorizing AI agent payments with cryptographically signed mandates. Here's how it works, its three mandate types, and when to use it.
- 4/16/2026
What Is MPP? A Developer's Guide to Machine Payments
MPP lets AI agents pay for anything over HTTP without an account. Here's how the Machine Payments Protocol actually works, how it compares to x402 and ACP, and real production code.
- 4/16/2026
Amazon Shopping API: The Ultimate Guide (2026)
Everything you need to know about Amazon APIs, their limitations, and how to use Zinc as a complete Amazon Shopping API for your business.
- 3/16/2026
Walmart Shopping API: The Ultimate Guide to Programmatic Buying (2026)
Everything you need to know about Walmart APIs, their limitations for developers, and how to use Zinc as a complete Walmart Shopping API.