Today, we’re announcing four new capabilities on the Anthropic API that enable developers to build more powerful AI agents: the code execution tool, MCP connector, Files API, and the ability to cache prompts for up to one hour.
Building better AI agents
Together with Claude Opus 4 and Sonnet 4, these beta features enable developers to build agents that execute code for advanced data analysis, connect to external systems through MCP servers, store and access files efficiently across sessions,…
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https://www.anthropic.com/news/agent-capabilities-api