v1.0.0 is live. Released June 30, 2026.

Agent Accessibility Event Protocol

An open standard for AI agents to communicate with assistive technology. Screen readers, AAC devices, Braille displays, and beyond.

Version 1.0.0 ships with 13 reference implementations, 29 conformance tests, and a 5-year stability commitment.

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What AAEP enables

Until today, AI agents and assistive technology had no standardized way to talk to each other. A blind user running an AI coding assistant had no reliable way for their screen reader to announce what the agent was doing, when it needed confirmation, or whether a tool invocation succeeded.

AAEP defines a vendor-neutral protocol for AI agents to emit structured events about their lifecycle, reasoning, tool use, and human-in-the-loop interactions. Assistive technology subscribes to these events and presents them to users in their preferred modality and language.

The protocol is transport-agnostic, supports first-class multilingual operation including Yoruba, Hausa, and Igbo at v1.0.0, and ships with three conformance levels so vendors can certify their implementations.

For different audiences

If you are…Start here
Building an AI agent or frameworkImplementer's Guide
Building assistive technology softwareSubscribers' Guide
Curious about the protocol designSpecification: Introduction
Designing an extensionExtensions Guide
Considering adopting AAEP at your orgAdopters
Tracking what's nextRoadmap