DeFi and Web3 Payments: Settlement Patterns and Risk Boundaries
A merchant-focused framework for separating ordinary wallet payments from protocol-dependent settlement and treasury activity.
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API & Security
AltcoinPayments.com guides tagged API & Security, covering merchant payment design, operations, security, settlement, and related implementation decisions.
Wallet Payment Checkout UX: Reduce Wrong-Network and Abandoned Payments
A practical design guide for wallet connections, QR payments, mobile deep links, confirmation screens, and recovery paths.
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Crypto Payment API Checklist: Security, Webhooks, and Reconciliation
The engineering controls that keep a payment API predictable under retries, duplicate events, network delays, and security pressure.
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Ethereum Payments: Gas, Confirmations, Tokens, and Merchant Controls
A merchant guide to the details that matter when accepting ETH or tokens on Ethereum and compatible networks.
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How Crypto Payment Gateways Work: A Merchant Systems Guide
A systems-level walkthrough of the objects, states, controls, and operational decisions behind a merchant crypto checkout.
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