External data integration

The process of connecting llms and agentic-ai to external data sources, services, and tools to extend their utility beyond static training data.

Integration Methods

• API (Application Programming Interface): The traditional mechanism used to enable LLMs to interact with external systems and services.
• model-context-protocol (MCP): A “universal plug” protocol that allows AI models (e.g., Claude Code) to connect to external data and tools. It transforms chatbots into powerful agents by enabling direct access to external systems, bypassing the limitation of only accessing manually uploaded files.

Context

• llms require external interaction with tools and services to be functionally useful in real-world applications.

Sources

• 2026 04 14 MCP vs API for LLM by IBM
• 2026 04 14 Claude Code using powerful AI agents