Agent2Agent Protocol (A2A)
★ 4/5 · AI
Google-led open standard for autonomous agent discovery, task delegation, and coordination across different vendor platforms and frameworks.
Pros
- 150+ organizations in production (not pilot)
- launched April 2025 with 50+ partners
- contributed to Linux Foundation June 2025
- supports Agent Cards, Tasks, and JSON-RPC 2.0 transport
- includes enterprise authentication/authorization
Cons
- Relatively new standard (launched 2025)
- adoption still ramping
- requires agents to implement Card and Task specifications
Cost
Free (Apache 2.0 open-source via Linux Foundation)
Verdict
Essential for enterprises building heterogeneous multi-agent systems requiring task routing across vendors.
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