The Problem: M-by-N Integrations
Why every AI app re-wiring every tool became unmanageable.
The Problem: M-by-N Integrations is a free MCP Academy lesson on CoddyKit — lesson 1 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the MCP Academy learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.
AI Wants to Reach Out
A chat model alone only knows text. To be useful, it needs to reach your files, databases, and apps. That reaching-out is an integration.
Every Tool Was Custom
Before MCP, each AI app wrote its own private glue code for every tool. A connector built for one app could not be reused by another. 🔌
Meet M and N
Picture M AI apps on one side and N tools on the other. Each app must learn to talk to each tool, all by itself.
The Math Gets Ugly
Wiring every app to every tool means up to M times N connectors. With 10 apps and 10 tools, that is already 100 pieces to build and maintain.
Duplicated Effort Everywhere
Ten different teams each rewrite a connector for the same database. That is the same work repeated ten times, with ten chances to get it wrong.
Breaks Are Contagious
When a tool changes its API, every custom connector that touched it can break at once. Maintenance becomes a never-ending chase.
A Familiar Story
This is the same mess old hardware had: every device needed its own special cable. The pain is real, and the pattern is well known.
What a Standard Buys You
A shared standard flips the math. Build each tool once to one spec, and any app that speaks it can connect for free.
From M times N to M plus N
With a common protocol you go from M times N down to M plus N. Ten apps plus ten tools is just twenty pieces, not a hundred.
Enter MCP
The Model Context Protocol is that shared standard for AI. It defines one common way for models and tools to talk to each other.
Why It Matters to You
Build one MCP server for your tool, and every MCP-aware app can use it. Your integration is written once and reused everywhere. ✨
Quick Check
Think about how the connector count changes with a shared standard.
Recap
Custom glue made integrations explode to M times N. A shared standard like MCP brings it down to M plus N, so each tool is built once and reused.
Frequently asked questions
Is the “The Problem: M-by-N Integrations” lesson free?
Yes — the full text of “The Problem: M-by-N Integrations” is free to read here on the web, and the MCP Academy course includes 4 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the MCP Academy course, upgrade to CoddyKit PRO.
What will I learn in “The Problem: M-by-N Integrations”?
Why every AI app re-wiring every tool became unmanageable. You practise MCP Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start MCP Academy?
No prior experience is required. MCP Academy on CoddyKit is structured for beginners through advanced learners; this is — lesson 1 of 4, so you can start here or from the beginning and move at your own pace.
How long does the “The Problem: M-by-N Integrations” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this MCP Academy lesson?
Yes. Every MCP Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- The Problem: M-by-N Integrations
- MCP as the USB-C for AI
- What an MCP Server Actually Does
- MCP in the Real World Today