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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

26,211stars · Oct 20, 2026

+923 (+3.6 %)since Aug 11, 2026

Aug 11, 2026 : 25,288 starsAug 12, 2026 : 25,311 starsAug 13, 2026 : 25,327 starsAug 14, 2026 : 25,346 starsAug 15, 2026 : 25,349 starsAug 16, 2026 : 25,358 starsAug 17, 2026 : 25,375 starsAug 18, 2026 : 25,382 starsAug 19, 2026 : 25,404 starsAug 20, 2026 : 25,425 starsAug 21, 2026 : 25,436 starsAug 22, 2026 : 25,448 starsAug 23, 2026 : 25,460 starsAug 24, 2026 : 25,470 starsAug 25, 2026 : 25,484 starsAug 26, 2026 : 25,493 starsAug 27, 2026 : 25,506 starsAug 28, 2026 : 25,520 starsAug 29, 2026 : 25,532 starsAug 30, 2026 : 25,548 starsAug 31, 2026 : 25,559 starsSep 2, 2026 : 25,589 starsSep 4, 2026 : 25,622 starsSep 5, 2026 : 25,634 starsSep 6, 2026 : 25,654 starsSep 7, 2026 : 25,663 starsSep 8, 2026 : 25,689 starsSep 9, 2026 : 25,697 starsSep 10, 2026 : 25,706 starsSep 11, 2026 : 25,725 starsSep 12, 2026 : 25,745 starsSep 13, 2026 : 25,756 starsSep 14, 2026 : 25,757 starsSep 15, 2026 : 25,778 starsSep 16, 2026 : 25,797 starsSep 17, 2026 : 25,815 starsSep 18, 2026 : 25,830 starsSep 19, 2026 : 25,842 starsSep 20, 2026 : 25,859 starsSep 22, 2026 : 25,890 starsSep 23, 2026 : 25,898 starsSep 24, 2026 : 25,911 starsSep 25, 2026 : 25,925 starsSep 26, 2026 : 25,936 starsSep 27, 2026 : 25,942 starsSep 28, 2026 : 25,947 starsSep 29, 2026 : 25,961 starsSep 30, 2026 : 25,975 starsOct 1, 2026 : 25,985 starsOct 2, 2026 : 25,987 starsOct 3, 2026 : 25,996 starsOct 4, 2026 : 26,008 starsOct 5, 2026 : 26,009 starsOct 6, 2026 : 26,020 starsOct 7, 2026 : 26,035 starsOct 8, 2026 : 26,053 starsOct 9, 2026 : 26,078 starsOct 10, 2026 : 26,092 starsOct 11, 2026 : 26,102 starsOct 12, 2026 : 26,110 starsOct 13, 2026 : 26,123 starsOct 14, 2026 : 26,140 starsOct 15, 2026 : 26,154 starsOct 16, 2026 : 26,169 starsOct 17, 2026 : 26,185 starsOct 18, 2026 : 26,195 starsOct 19, 2026 : 26,199 starsOct 20, 2026 : 26,211 stars
Exact values · 68 readings
MeasuredstarsChange
26,211+12
26,199+4
26,195+10
26,185+16
26,169+15
26,154+14
26,140+17
26,123+13
26,110+8
26,102+10
26,092+14
26,078+25
26,053+18
26,035+15
26,020+11
26,009+1
26,008+12
25,996+9
25,987+2
25,985+10
25,975+14
25,961+14
25,947+5
25,942+6
25,936+11
25,925+14
25,911+13
25,898+8
25,890+31
25,859+17
25,842+12
25,830+15
25,815+18
25,797+19
25,778+21
25,757+1
25,756+11
25,745+20
25,725+19
25,706+9
25,697+8
25,689+26
25,663+9
25,654+20
25,634+12
25,622+33
25,589+30
25,559+11
25,548+16
25,532+12
25,520+14
25,506+13
25,493+9
25,484+14
25,470+10
25,460+12
25,448+12
25,436+11
25,425+21
25,404+22
25,382+7
25,375+17
25,358+9
25,349+3
25,346+19
25,327+16
25,311+23
25,288·