For merchants who want to own the software and hold their own keys.
Self-hosting a crypto processor means no third-party account, no per-transaction fee, and funds that settle straight to a wallet you control. The catch is that you run the software yourself. This guide ranks the serious self-hosted, non-custodial options by how much they ask of you and how far they reach beyond Bitcoin.
How we ranked them
Best multichain self-hosted processor with support
Self-hosted and non-custodial, but multichain by design: 14 networks plus USDC, USDT, and DAI. Deploys as a Next.js app on Vercel with Alchemy handling detection, so there's no node to run. Includes a REST API, typed SDK, signed webhooks, a WooCommerce plugin, and setup support. One-time purchase, 0% platform fees.
Best free option for Bitcoin and Lightning
The best-known open-source, self-hosted, non-custodial processor. Excellent Bitcoin and Lightning support and a large community. Expect to run more infrastructure (often a full node), and multichain/stablecoin coverage is limited compared to a multichain gateway.
Best for full control if you have engineering time
Rolling your own on top of node infrastructure and libraries gives total control, but you own address derivation, reorg handling, confirmation logic, and webhook security yourself, a quarter of engineering most teams would rather skip.
$699 one-time with code MCSINTRO $999, full source, every v1 update included, 0% platform fees.
Read the docs