a2a
An implementation of the Google A2A protocol and SDK for client and server development
4.3.1
shamblett/a2a
What this package is like to depend on
Last release 16 days ago
07 Aug 2026
Ships unpredictably
gaps range from 8 days to 6 months
Nearly every release is documented
notes for 24 of 24 stable releases
Nothing withdrawn
no release was ever pulled
1 years old
24 releases · first in 2025
17 releases in the last 12 months
see the full history below
Release timeline
24 releases · Jul 2025 to Aug 2026Releases
latest 24-
4.3.107 Aug 2026 -
4.3.007 Aug 2026 -
4.2.019 Feb 2026 -
4.1.018 Feb 2026 -
4.0.027 Dec 2025Release notes
Open source →The MCP Bridge Server component has now been removed from this package and moved into its own package a2a_mcp_bridge. Although a useful component of the Dart A2A ecosystem it is not a core component of A2A itself. Users of the bridge server should now include the a2a_mcp_bridge package along with a2a.
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3.3.018 Dec 2025 -
3.2.112 Dec 2025 -
3.2.009 Dec 2025 -
3.1.005 Nov 2025 -
3.0.101 Nov 2025 -
3.0.019 Oct 2025 -
2.5.024 Sep 2025 -
2.4.120 Sep 2025 -
2.4.017 Sep 2025 -
2.3.302 Sep 2025 -
2.3.231 Aug 2025 -
2.3.131 Aug 2025 -
2.3.027 Aug 2025 -
2.2.025 Aug 2025 -
2.1.022 Aug 2025 -
2.0.021 Aug 2025 -
1.1.106 Aug 2025 -
1.1.003 Aug 2025 -
1.0.030 Jul 2025