You can install the A2A SDK using either uv or pip.
uv (optional, but recommended) or pipWhen you're working within a uv project or a virtual environment managed by uv, the preferred way to add packages is using uv add.
To include the optional HTTP server components (FastAPI, Starlette), install the http-server extra:
uv add a2a-sdk[http-server]
To install with gRPC support:
To install with OpenTelemetry tracing support:
uv add "a2a-sdk[telemetry]"
To install with database support:
# PostgreSQL support uv add "a2a-sdk[postgresql]" # MySQL support uv add "a2a-sdk[mysql]" # SQLite support uv add "a2a-sdk[sqlite]" # All database drivers uv add "a2a-sdk[sql]"
If you prefer to use pip, the standard Python package installer, you can install a2a-sdk as follows
To include the optional HTTP server components (FastAPI, Starlette), install the http-server extra:
pip install a2a-sdk[http-server]
To install with gRPC support:
pip install "a2a-sdk[grpc]"
To install with OpenTelemetry tracing support:
pip install "a2a-sdk[telemetry]"
To install with database support:
# PostgreSQL support pip install "a2a-sdk[postgresql]" # MySQL support pip install "a2a-sdk[mysql]" # SQLite support pip install "a2a-sdk[sqlite]" # All database drivers pip install "a2a-sdk[sql]"
Run Remote Agent
git clone https://github.com/a2aproject/a2a-samples.git cd a2a-samples/samples/python/agents/helloworld uv run .
In another terminal, run the client
cd a2a-samples/samples/python/agents/helloworld uv run test_client.py
You can validate your agent using the agent inspector. Follow the instructions at the a2a-inspector repo.
You can also find more Python samples here and JavaScript samples here.
This project is licensed under the terms of the Apache 2.0 License.
See CONTRIBUTING.md for contribution guidelines.
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