I Built a Payment SDK for AI Agents – Enabling secure payments without human interaction

Summary: AgentTrust Protocol is an open-source SDK that enables AI agents to perform payments securely by addressing authentication, authorization, and audit challenges. It integrates decentralized identifiers (DID), JWT tokens, and hash chain technology to authenticate agents, enforce spending limits, and record transactions tamper-evidently.

What it does

It allows AI agents to authenticate using DIDs, obtain scoped authorization tokens, execute payments via Stripe’s server-to-server API, and log transactions in a hash chain audit trail.

Who it's for

Developers building AI agents that require secure, auditable payment capabilities without human browser interaction.

Why it matters

It solves the problem of enabling AI agents to make payments securely and verifiably, overcoming limitations of traditional payment flows designed for humans.