https://github.com/a2aproject/a2a-python
Official Python SDK for the Agent2Agent (A2A) Protocol
https://github.com/a2aproject/a2a-python
agents generative-ai google
Last synced: 7 months ago
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Official Python SDK for the Agent2Agent (A2A) Protocol
- Host: GitHub
- URL: https://github.com/a2aproject/a2a-python
- Owner: a2aproject
- License: apache-2.0
- Created: 2025-05-09T05:42:15.000Z (9 months ago)
- Default Branch: main
- Last Pushed: 2025-06-23T12:55:09.000Z (7 months ago)
- Last Synced: 2025-06-23T19:50:15.038Z (7 months ago)
- Topics: agents, generative-ai, google
- Language: Python
- Homepage: https://goo.gle/a2a-python-sdk
- Size: 1010 KB
- Stars: 536
- Watchers: 14
- Forks: 115
- Open Issues: 25
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
- Codeowners: .github/CODEOWNERS
- Security: SECURITY.md
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README
# A2A Python SDK
[](LICENSE)
[](https://pypi.org/project/a2a-sdk/)
[](https://pypistats.org/packages/a2a-sdk)
A Python library that helps run agentic applications as A2AServers following the Agent2Agent (A2A) Protocol.
## Installation
You can install the A2A SDK using either `uv` or `pip`.
## Prerequisites
- Python 3.10+
- `uv` (optional, but recommended) or `pip`
### Using `uv`
When you're working within a uv project or a virtual environment managed by uv, the preferred way to add packages is using uv add.
```bash
uv add a2a-sdk
```
### Using `pip`
If you prefer to use pip, the standard Python package installer, you can install `a2a-sdk` as follows
```bash
pip install a2a-sdk
```
## Examples
### [Helloworld Example](https://github.com/a2aproject/a2a-samples/tree/main/samples/python/agents/helloworld)
1. Run Remote Agent
```bash
git clone https://github.com/a2aproject/a2a-samples.git
cd a2a-samples/samples/python/agents/helloworld
uv run .
```
2. In another terminal, run the client
```bash
cd a2a-samples/samples/python/agents/helloworld
uv run test_client.py
```
3. You can validate your agent using the agent inspector. Follow the instructions at the [a2a-inspector](https://github.com/a2aproject/a2a-inspector) repo.
You can also find more Python samples [here](https://github.com/a2aproject/a2a-samples/tree/main/samples/python) and JavaScript samples [here](https://github.com/a2aproject/a2a-samples/tree/main/samples/js).
## License
This project is licensed under the terms of the [Apache 2.0 License](https://raw.githubusercontent.com/a2aproject/a2a-python/refs/heads/main/LICENSE).
## Contributing
See [CONTRIBUTING.md](https://github.com/a2aproject/a2a-python/blob/main/CONTRIBUTING.md) for contribution guidelines.