A2A

AgentGitHubActiveShell

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

Description provenance: Original source

Open canonical source

Measured: Oct 20, 2026 · 68 observations

Domains & Uses

Domains: Agents, skills and MCP

Check at the source

Compatibility and prerequisites must be checked in the official documentation.

https://github.com/a2aproject/A2A

Classifications

Nature: Tool

Measurement history

Comparable readings are grouped by signal and unit.

Stars

26,221stars · Oct 20, 2026

+331 (+1.3 %)since Sep 22, 2026

Exact values · 29 readings

Measured	stars	Change
Oct 20, 2026	26,221	+22
Oct 19, 2026	26,199	+4
Oct 18, 2026	26,195	+10
Oct 17, 2026	26,185	+16
Oct 16, 2026	26,169	+15
Oct 15, 2026	26,154	+14
Oct 14, 2026	26,140	+17
Oct 13, 2026	26,123	+13
Oct 12, 2026	26,110	+8
Oct 11, 2026	26,102	+10
Oct 10, 2026	26,092	+14
Oct 9, 2026	26,078	+25
Oct 8, 2026	26,053	+18
Oct 7, 2026	26,035	+15
Oct 6, 2026	26,020	+11
Oct 5, 2026	26,009	+1
Oct 4, 2026	26,008	+12
Oct 3, 2026	25,996	+9
Oct 2, 2026	25,987	+2
Oct 1, 2026	25,985	+10
Sep 30, 2026	25,975	+14
Sep 29, 2026	25,961	+14
Sep 28, 2026	25,947	+5
Sep 27, 2026	25,942	+6
Sep 26, 2026	25,936	+11
Sep 25, 2026	25,925	+14
Sep 24, 2026	25,911	+13
Sep 23, 2026	25,898	+8
Sep 22, 2026	25,890	·