API Hub Tool

The ApiHubTool integrates your agent with Google Cloud API Hub, allowing the LLM to search for, discover, and understand enterprise APIs registered within your organization.

Usage

Ensure your application is authenticated and has permissions to read from the API Hub in the target project.

using GoogleAdk.Core.Agents;
using GoogleAdk.Core.Tools;

var agent = new LlmAgent(new LlmAgentConfig
{
    Name = "api_discoverer",
    Model = "gemini-2.5-flash",
    Instruction = "You help developers find internal APIs. Use the API Hub tool to search for enterprise APIs.",
    Tools = [ new ApiHubTool() ]
});

LLM Parameters

The LLM invokes this tool with: - projectId (string, required) - location (string, required) - e.g., "global". - searchQuery (string, required) - e.g., "payments api".

The tool returns a list of matching APIs and their descriptions for the LLM to synthesize.