Tool use, which enables Claude to interact with external tools and APIs, is now generally available across the entire Claude 3 model family on the Anthropic Messages API, Amazon Bedrock, and Google Cloud's Vertex AI. With tool use, Claude can perform tasks, manipulate data, and provide more dynamic—and accurate—responses.

Tool use

Define a toolset for Claude and specify your request in natural language. Claude will then select the appropriate tool to fulfill the task and, when appropriate, execute the corresponding action:

• Extract structured data from unstructured text: Pull names, dates, and amounts from invoices to reduce manual data entry.
• Convert natural language requests into structured API calls: Enable teams to self-serve common actions (e.g., "cancel subscription") with simple commands.
• Answer questions by searching databases or using web APIs: Provide instant, accurate responses to customer inquiries in support chatbots.
• Automate simple tasks through software APIs: Save time and minimize errors in data entry or file management.
• Orchestrate multiple fast Claude subagents for granular tasks: Automatically find the optimal meeting time based on attendee availability.

Felling like you want to find out more?

• Read the documentation
• Check the tool use tutorial
• Explore the Anthropic Cookbooks on tool use