Explore projects tagged crypto-payment-rails that implement production-ready crypto payment rails, SDKs, and gateway connectors for on-chain and off-chain settlement. This curated list displays open-source repositories and merchant-facing integrations — including stablecoin settlement patterns, merchant onboarding flows, webhook and notification architectures, recurring crypto billing, reconciliation tooling, and payment gateway connectors — to help developers and payments engineers evaluate integration patterns, performance tradeoffs, and compliance considerations. Use the filtering UI to narrow results by programming language, blockchain network, deployment status, and integration type to find implementation guides, API references, demo apps, and sample merchant onboarding flows. Review code, run demos, and follow step-by-step guides to clone, test, or contribute to projects that match your payment infrastructure requirements; filter now to discover the SDKs and on-chain payment flows most relevant to your stack.
