Self-Hosted x402 Blockchain Payment Facilitator with 1Shot API

This n8n workflow enables you to run a self-hosted x402 facilitator, simplifying blockchain payment processing for sellers. It implements the three core x402 routes: /verify to validate payment details, /settle to execute onchain settlements, and /supported to list compatible blockchains and tokens. By integrating the 1Shot API community node, it automates wallet management, gas token handling, and token transfers without requiring deep blockchain expertise.

Key benefits include full control over supported tokens and networks, compliance with x402 specifications, and robust error handling for production use. It's ideal for businesses accepting crypto payments in unsupported tokens or wanting to operate their own facilitator service, reducing reliance on third-party providers and minimizing fees.

Use cases span e-commerce platforms, freelance marketplaces, and DeFi services needing seamless stablecoin settlements. Setup involves creating a 1Shot API account, funding wallets, importing transfer functions via 1Shot Prompts, linking credentials in n8n, and configuring tokens/networks—deployable in minutes for self-hosted n8n instances.