Netherlands-based Cryptorefills has enabled x402 payments at checkout, allowing AI agents to purchase gift cards, mobile top-ups, and eSIMs using USDC on the Base network. The company has also published an open-source operations reference for the merchant layer of agentic commerce, released simultaneously with the payment integration.
The x402 protocol, developed by Coinbase and Cloudflare, allows autonomous software to settle stablecoin transactions programmatically. Under the protocol, an agent receives an HTTP 402 Payment Required response from a merchant, settles the requested amount in stablecoin, and completes the transaction in a single automated exchange. For Cryptorefills, checkout becomes a programmable endpoint that agents can call directly without human intervention.
Two payment rails for different agent contexts
The x402 integration adds a second agent payment rail to the Cryptorefills platform. The company released its Model Context Protocol (MCP) server in October 2025, enabling agents to discover products, build orders, and complete purchases through MCP. The two rails serve different interaction patterns and run in parallel. Where MCP supports product discovery and order construction, x402 addresses a more direct pattern in which an agent calls an endpoint, receives payment terms, settles in USDC, and completes the transaction in a single round trip.
Open-source operations reference
The reference repository covers the operations layer surrounding the protocol stack. Topics include catalogue discovery for agent buyers, settlement reconciliation across chains, quote and pricing handling, and delivery confirmations. Documentation is released under CC0 licence, with example code released under Apache 2.0.
CTO Simonluca Landi said the repository contains nine playbooks, the TypeScript schemas behind them, and five runnable examples. He mentioned that two of them connect to our live MCP and x402 endpoints, so a developer can clone the repository and watch the agent-merchant exchange execute against production.
Agentic commerce infrastructure
Cryptorefills currently serves AI agents through three emerging standards: MCP for context, Agent Skills for capability publishing, and x402 for stablecoin settlement. The release positions the company within a broader effort to define the infrastructure layer for agentic commerce, a category in which autonomous software agents initiate, negotiate, and complete commercial transactions without direct human involvement.
The publication of a merchant operations reference addresses a gap in the ecosystem: while payment protocols for agents have begun to emerge, documentation of how merchants operationalise agent-facing infrastructure has remained limited. By open-sourcing its own approach, Cryptorefills is contributing a practitioner-derived framework to a segment where standards are still forming.
