Skip to content

A2A license, foundation and stars

Agents and coding agents · Apache 2.0 (open source) · 25,929 stars

GitHub

Agent2Agent (A2A) is an open protocol enabling communication and interoperability between opaque agentic applications.

License history

LICENSE file

Apache 2.0 No license change recorded since the repository was created in 2025.

Latest release

v1.0.1 published May 28, 2026

ProjectStars
hermes-agentMIT249k
deepseek-harnessDeepSeekMIT236k
opencodeMIT210k
AutoGPTSignificant GravitasMIT for most of the repo, PolyForm Shield License 1.0.0 for the autogpt_platform folder188k
codexOpenAIApache 2.0126k
browser-useMIT116k
gemini-cliApache 2.0107k
OpenHandsAll Hands AIMIT89.1k
About and history
Repository
a2aproject/A2A · created Mar 25, 2025
Website
a2a-protocol.org
Language
Shell
Foundation
None; run by its maintainers
GitHub detects
Apache-2.0
Stars per week
From the second weekly snapshot

Weekly snapshots

Week ofStars
Sep 21, 202625,929

Changes

What changed
New releasev1.0.1
TrackedAdded: a2aproject/A2A

License changes by email

Only when a tracked project changes its license, foundation or name, at most once a week.

Double opt-in. Unsubscribe any time.