MCP is slightly different from a standard web API, in that the server can request data from a client, to which the client will respond. If no response is required, they send notifications.
Communication between client and server is stateful – meaning that the history of communication is kept and used as part of the response, thereby getting a larger context over time.
MCP uses primitives to describe the data / capability of the server. Primitives cover tools (functionality that servers will offer the AI applications), resources (data sources) and prompts (prompt templates).
MCP is probably one of the extra technologies alongside LLMs that will start breaking a lot of industries. When LLMs can just ‘talk’ directly to services, there will be a lot less requirement for user interfaces … and by that I mean a ton of SAAS products. Simply the functionality a SAAS product does will be abstracted away by automation and MCP. So the web dev industry for sure will start to have demand drop for such things.
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