Bedrock Agent Action Groups: Connect Your Agent to APIs with Terraform 🔌

A Bedrock Agent without tools is just a chatbot. Action groups give your agent the ability to call APIs, query databases, and take real actions. Here's how to wire up Lambda functions with OpenAPI schemas using Terraform. In the previous post , we deployed a Bedrock Agent that can reason and hold multi-turn conversations. But without tools, it can only generate text. Ask it to check inventory, create a ticket, or look up a customer, and it can only describe what it would do. Action groups change that. An action group connects your agent to a Lambda function through an OpenAPI schema that describes the available operations. The agent reads the schema, decides which operation to call based on the user's request, extracts the required parameters from the conversation, and invokes the Lambda function. The agent becomes an actor, not just a talker. 🎯 🏗️ How Action Groups Work User: "What's the exchange rate from USD to EUR?" ↓ Agent reads OpenAPI schema → finds getExchangeRate operation ↓ A