How to Give an LLM Real-Time Information: APIs, RAG, and MCP
Choose between live APIs, document retrieval, and MCP based on the information your assistant needs. Design for timestamps, permissions, stale caches, and unavailable sources.
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MCP vs RAG vs Function Calling: Differences and When to Use Each
MCP connects applications to tools and data. RAG retrieves evidence for answers. Function calling lets models request execution. Compare them through a reimbursement policy assistant.
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