# a2a-v1

> A2A reaches first stable spec — v1.0 stable specification

_State of the Agentic Web · /state-of-the-agentic-web/a2a-v1 · [JSON](/api/state-of-the-agentic-web/a2a-v1) · [all State of the Agentic Web](/state-of-the-agentic-web)_

- **metric:** A2A reaches first stable spec
- **metric_family:** protocol-maturity
- **measures_pillar:** /protocols
- **entity_measured:** A2A
- **value:** v1.0
- **unit:** stable specification
- **date:** 2026
- **period:** 2026-Q2
- **figure_kind:** cited
- **source:** https://www.linuxfoundation.org/press/a2a-protocol-surpasses-150-organizations-lands-in-major-cloud-platforms-and-sees-enterprise-production-use-in-first-year
- **trend:** up
- **last_verified:** 2026-06-15