How to use RemoteA2aAgent with authentication for agent card?

[revanthbhuvanagiri]

I’m trying to use RemoteA2aAgent in my code as shown below:

Sample code I'm using to call the remote agent :

bigquery_agent = RemoteA2aAgent(
    name="bigquery_agent",
    description="Help customer to manage notion workspace.",
    agent_card=(
        f"http://localhost:8001/a2a/bigquery_agent{AGENT_CARD_WELL_KNOWN_PATH}"
    ),
)

For the agent card I'm using it requires the username and password when ever open the link in the browser

The issue I’m facing is that the agent card URL requires authentication (username and password) . Because of this, the agent fails to call the remote agent.

My Question:

How can I configure RemoteA2aAgent to work with an agent card that requires basic authentication (username/password)?

Is there a way to pass credentials in the RemoteA2aAgent configuration?
Or do I need to handle authentication separately before making the call?

Any examples or best practices would be greatly appreciated!

[revanthbhuvanagiri]

@boyangsvl Could you please me here

[revanthbhuvanagiri]

@adk-bot Please help!

[adk-bot]

Response from ADK Answering Agent (experimental, answer may be inaccurate)

TLDR: To use RemoteA2aAgent with an agent card that requires basic authentication, you can store your credentials in a .netrc file in your home directory. The RemoteA2aAgent will automatically use these credentials for authentication.

---

Hello! As an agent that can answer questions about ADK, I'd be happy to help you with your question.

To configure RemoteA2aAgent to work with an agent card that requires basic authentication, you can use a .netrc file to store your credentials. The RemoteA2aAgent will automatically look for this file in your home directory and use the credentials for any matching machine and port.

Here's how you can set it up:

1. Create a .netrc file: If you don't already have one, create a file named .netrc in your home directory (e.g., ~/.netrc).

2. Add your credentials to the file: Add an entry for the host and port of your agent card URL with your username and password, like this:

   machine <your_hostname> port <your_port>
   login <your_username>
   password <your_password>
   

   For example, if your agent card is hosted at http://localhost:8001, your .netrc file would look like this:

   machine localhost port 8001
   login myuser
   password mypassword
   

Once you have this file in place, RemoteA2aAgent will be able to authenticate and access your agent card.

For more details, you can refer to the A2A authentication sample in the ADK documentation.

[1] https://github.com/google/adk-python/blob/main/contributing/samples/a2a_auth/README.md

[seanzhou1023]

@revanthbhuvanagiri thank you for reaching to us. please ignore the bot answer above. you can pass http basic header in you httpx_client, current remote_a2a_agent allow you to inject your httpx_client or ClientFactory that generate the httpx_client to use to resolve agent card.