USDC payments on Base for AI agents at checkout, alongside open-source documentation of how merchants run agent-driven commerce.
Amsterdam, May 11th 2026, ZEX PR WIRE, 15:00 CEST. Cryptorefills has enabled x402 payments at checkout, allowing AI agents to pay for gift cards, mobile top-ups and eSIMs using USDC on the Base network. The protocol, developed by Coinbase and Cloudflare, lets autonomous software settle stablecoin transactions programmatically. Cryptorefills has also published an open-source operations reference for the merchant operations layer of agentic commerce.
x402 lets a software agent receive an HTTP 402 Payment Required response from a merchant, settle the requested amount in stablecoin, and complete the transaction in a single automated exchange. For Cryptorefills, checkout becomes a programmable endpoint that agents can call directly.
The x402 launch adds a second agent-payment rail to the platform. Cryptorefills released its Model Context Protocol server in October 2025, allowing agents to discover products, build orders, and complete purchases through MCP. x402 addresses a different pattern: the agent calls a Cryptorefills endpoint, receives payment terms, settles in USDC, and completes the request in one round trip. The two rails serve different agent contexts and run in parallel.
“We shipped x402 and open-sourced our merchant operations work in the same week on purpose. One is a payment rail, while the other is what a merchant needs around it to accept agent traffic. Agentic commerce is happening, and very little about the second part has been written down,” said Massimiliano Silenzi, CEO of Cryptorefills. “We’ve been running stablecoin checkout since 2018, and a lot of what we learned there carries over. We chose to publish what we’ve learned and continue building the rest openly.”
The reference repository, available at github.com/Cryptorefills/agentic-commerce, covers the operations surface that surrounds 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; example code is Apache 2.0.
“In the repository we just open-sourced there are nine playbooks, the TypeScript schemas behind them, and five runnable examples. 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,” said Simonluca Landi, CTO of Cryptorefills.
Cryptorefills serves AI agents through three of the field’s emerging standards: MCP for context, Agent Skills for capability publishing, and x402 for stablecoin settlement.
About Cryptorefills
Cryptorefills enables people in over 180 countries to spend cryptocurrency on everyday products and services. Categories include gift cards from over 6,600 brands, mobile top-ups across 600 operators, eSIMs, flights across 300 airlines, and stays at over 1 million hotels and properties. The platform supports stablecoin checkout across Base, Ethereum, Tron, Solana, Polygon, and other major networks, alongside Bitcoin and Lightning. It is among the first ecommerce companies to integrate AI-agent payment standards including MCP, Agent Skills, and x402.
Operating publicly since 2018 and headquartered in Amsterdam, Cryptorefills is a member of the Holland Fintech Association and Blockchain Netherlands Foundation.
Disclaimer: The views, recommendations, and opinions expressed in this content belong solely to the third-party experts. This site was not involved in the writing and production of this article.
