a2aproject / A2A
Agent2Agent (A2A) is an open protocol enabling communication and interoperability between opaque agentic applications.
Why this job: works in the areas we cover, but does not say which job it does
What it does
- Standardized Communication. JSON-RPC 2.0 over HTTP(S).
- Agent Discovery. Via "Agent Cards" detailing capabilities and connection info.
- Flexible Interaction. Supports synchronous request/response, streaming (SSE), and asynchronous push notifications.
- Rich Data Exchange. Handles text, files, and structured JSON data.
- Enterprise-Ready. Designed with security, authentication, and observability in mind.
Get started
No single install command. Read the steps in the README (opens in new tab)
- Maintenance
- Active
- Last commit 4 days ago
- Stars
- 26,459
- +66 this week
- Licence
- Apache-2.0
- Allows business use
- Downloads for
- None listed
- No release files
- Latest version
- v1.0.1
- Released 5 months ago
- Built with
- Shell
- 91% of the code
Is it looked after?
- Contributors
- 34
- Last 90 days
- Issues
- 73% closed
- 233 still open
- Pull requests
- 645 merged
- 73 waiting
- Releases
- 11
- 2 in the last year
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| sing1ee / a2a-directory | 242 | 2 days ago | MIT | No downloads |
| google / agentmesh | 1,187 | 6 days ago | Apache-2.0 | Mac, Windows, Linux |
| openpactprotocol / openpactprotocol | 114 | 34 days ago | Apache-2.0 | No downloads |
More: languages, topics and project record
Languages
- Shell 91%
- Python 9%
Topics
- a2a
- a2a-mcp
- a2a-protocol
- a2a-server
- agents
- generative-ai
- linux-foundation
Project record
- JobOther AI tools
- StatusListed
- Commits659
- Forks2,692
- Watching238
- Stars in 28 days+371
- CreatedMar 25, 2025
- First seen by usNov 7, 2026
- CheckedNov 9, 2026