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The Command+K blog

Field notes on AI-native SaaS.

How to ship MCP servers, embed in-product AI assistants, and monetize AI usage — written by the team building the platform.

All clustersMCP educationIn-product AIAI monetizationComparison & discovery
Clear tag: #Comparison ×
  • MCP education

    MCP vs function calling: what's actually different

    MCP and function calling solve different problems. Function calling is a per-model capability; MCP is the cross-model protocol that makes your tools portable. Here's how they fit together in production.

    Jun 22, 2026 · 5 min
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