AI EngineeringInterview preparation
Intermediate·Discussion·2 min read

MCP versus function calling?

Practice this question
  • Function calling lets a model propose a structured operation.
  • MCP provides an integration protocol for discovering/invoking capabilities.
  • The host can turn a model proposal into an MCP request that calls an existing REST service underneath.
Adapted from 13_AI.MD · “29.9 MCP”. Code examples are study fragments. Difficulty and core labels are editorial estimates; version-specific behavior should be checked against your project.