Guide · AI agents

What is MCP (Model Context Protocol) and what is it for in a company

MCP (Model Context Protocol) is an open standard for connecting AI applications to tools and data sources in a uniform way: an assistant or agent can use your CRM, your files or your database through an "MCP server" without custom integrations for every combination. It brings order and reuse, but requires well-defined permissions and security.

By Oliver Guirado · Updated on October 28, 2026 · 4 min read

Layers of an MCP architecture: an AI application or agent, an MCP client, MCP servers for each tool and the company systems such as CRM, ERP or files

What problem MCP solves

For an AI agent to do something useful it needs tools: query an order, search a document, create a task. Until now every AI application integrated each tool in its own way, and every change meant redoing the work. The Model Context Protocol is an open standard, initially driven by Anthropic and later adopted by other players, that defines how an AI application discovers and uses external tools and data.

The idea is that of a "universal connector": if your tool exposes an MCP server, any compatible application can use it, and if you change model or application, your connectors are still valid.

How it works

  1. MCP server: a small service that exposes tools (actions), resources (data) and instruction templates of a specific system, with its permissions.
  2. MCP client: the AI application (an assistant, an agent, a code editor) that connects to one or more servers.
  3. Discovery: the client asks which tools are available and the model decides when to use them.
  4. Controlled execution: each call goes through the server's rules (permissions, validation, logging) and, where appropriate, through a person's approval.

Business use cases

Agents connected to your systems

An agent that queries the CRM, the ERP and email through MCP servers with their own permissions.

AI agents →

Access to internal knowledge

Servers that give the assistant access to documentation, wikis and repositories.

RAG assistant →

Tools for the technical team

Code editors and development assistants connected to tickets, repositories and test databases.

A common layer for several models

The same tools available to different models and applications, without duplicated integrations.

AI integration →

MCP, API and automation: how they differ

APIAutomation (n8n, etc.)MCP
What it is forCommunication between systemsFlows with fixed rulesLetting a model discover and use tools
Who decides the stepThe programmerThe designed flowThe model, within the server's limits
Common standardEvery API is differentEvery platform is differentA common protocol

It does not replace APIs: an MCP server usually wraps an existing API. And it coexists with n8n: predictable flows are automated and MCP gives the agent access to tools for the unpredictable.

Security: what to take care of

  • Minimum permissions: each server exposes only the necessary actions and, when enough, read-only.
  • Human approval for critical or irreversible actions.
  • Prompt injection: the content the agent reads (an email, a web page) may contain malicious instructions; what triggers actions must be isolated and validated.
  • Third-party servers: install only trusted servers and review what data they receive.
  • Authentication and logging: per-user credentials, not shared, and traceability of every call.
  • Compliance: data passing through the server remains subject to GDPR; see AI, GDPR and the AI Act.

When it makes sense to adopt MCP

If you have several agents or assistants that must use the same tools, if you want to avoid duplicated integrations or if you work with AI development tools, MCP brings order. If you only need one specific automation, an API and a flow are enough. We evaluate it in the AI diagnostic and implement it with our AI agents and AI integration services.

Frequently asked questions

What is MCP in artificial intelligence?

MCP (Model Context Protocol) is an open standard that defines how an AI application connects to external tools and data sources, so an agent can use your systems in a uniform way.

Who created the Model Context Protocol?

It was initially driven by Anthropic as an open standard and has been adopted by other providers and tools.

Does MCP replace APIs?

No. An MCP server normally wraps an existing API and exposes it in a standard way to language models.

Is it safe to use MCP in a company?

It can be, with minimum permissions, human approval for critical actions, trusted servers, per-user authentication and logging of every call, and protection against prompt injection.

Do I need MCP to build an AI agent?

It is not essential. It is useful when several agents or applications share tools; for a specific case it is enough to integrate the APIs directly.

Shall we talk about your project?

Tell us about your case and we will reply within 24-48 hours with a proposed scope and an indicative quote.

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Tell us about your project

Describe what you want to achieve and which systems you work with. We reply within 24-48 hours.

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