PARRITAI
Journal / Entry · 2026-06-12

MCP (Model Context Protocol): what is it and what is it for?

An open protocol for connecting tools and data sources to agents in a consistent way.

Model Context Protocol is an open standard developed by Anthropic. It lets agents connect to external data sources and tools through a common interface. Instead of maintaining a different plugin for every service, an organization can expose resources through one protocol.

How does MCP work in practice?

An MCP server exposes files, databases and internal APIs through a standardized protocol. The agent connects to that server rather than directly to each system. The server acts as an adapter, translating requests between the agent and the underlying tools.

What changes for a lawyer or a craft business?

A law firm can expose case files as resources without building a separate plugin for every agent feature. A craft business can make its booking system and product catalogue available through the same protocol. Integration moves into the server, which simplifies maintenance.

Is it different from a traditional API?

Yes. A traditional API is specific to one service. MCP defines how an agent discovers and communicates with tools. A company can place an adapter in front of a private or old system while the agent continues to see a consistent structure.

What are the immediate use cases?

Internal automation is the main one. A company can expose a CRM, an Access database and spreadsheets through MCP so an agent can build consolidated reports without migrating all the data. Commerce teams can connect inventory, back-office and logistics systems for operational alerts.

Who should implement an MCP server?

A developer or technical integrator who understands the systems being exposed. The concentrated effort is building and securing the server. Once it exists, agent capabilities can evolve without creating a new integration for each feature.

Will MCP replace plugins?

It points toward a less vendor-dependent integration model. Organizations can connect private systems instead of waiting for official marketplace plugins. Custom MCP servers are especially useful where the underlying software is proprietary.