TechFlow News: On March 20, according to official announcements, World Liberty Financial (WLFI), a crypto project associated with the Trump family, unveiled AgentPay SDK—an open-source AI agent payment toolkit.
The SDK is built on USD1 and integrates self-hosted key management and policy-based transaction authorization. It also supports integration with widely used AI development tools such as Claude Code, Codex, Cursor, and OpenClaw.
AgentPay SDK enables AI agents to hold, transfer, and spend the USD1 stablecoin on EVM-compatible blockchains. Transactions are signed locally, with zero data sent to WLFI. The SDK follows a “policy-first” principle: every transaction must be validated by an operator-defined policy engine before signing—bypassing is impossible. The policy engine supports per-transaction and daily spending limits; transactions exceeding these thresholds require manual approval.
In addition, the SDK includes native Bitrefill purchasing functionality, allowing AI agents to directly buy gift cards, eSIMs, and prepaid cards. The policy engine similarly enforces per-transaction and daily limits, requiring manual approval for any transaction exceeding the defined thresholds.
As financial infrastructure tailored for the agent economy, AgentPay SDK aims to further establish USD1 as the economic operating layer for autonomous AI systems. Going forward, WLFI plans to expand its efforts around EIP-3009 implementation, standardization, plugin ecosystem development, and broader chain and partner integrations.
