Bifalgorithm post

"If APIs already exist, then why do we need MCP? Here is a real answer. So every API is different. It has a different signature, different auth, different docs, etc. So if you want your AI to use 10 different tools, a developer has to manually code every single API integration. That is what MCP fixes. So it's not actually replacing APIs. It is a standard layer on top of it. So that the AI can see what all tools are available and call them itself. With a normal API, you write the exact API call yourself. But with MCP, the AI looks at the available tools, pick the right one and calls it on its own. So APIs are still doing the actual work. MCP just lets the AI use them without you hard-quoting everything. That's the real reason it exists, not because APIs were broken, but because AI needed a way to read them."

"If APIs already exist, then why do we need MCP? Here is a real answer. So every API is different. It has a different signature, different auth, different docs…