Model Context Protocol (MCP)
Also: MCP
What is Model Context Protocol (MCP)?
Model Context Protocol is an open standard for exposing tools, data sources and prompts to AI applications through a common interface, so an internal system can be connected once and used by any compatible agent or assistant.
What Model Context Protocol (MCP) means
MCP defines how an AI application (the client) discovers and calls capabilities offered by a server. A server wraps a system such as a CRM, a database or a document store and publishes tools with names and schemas, resources the model can read, and reusable prompts. Any MCP-compatible client, whether a coding assistant, a chat product or your own agent, can then list and use them without custom integration code for each pairing.
For a business this changes the integration economics. Instead of writing a bespoke connector for every agent and every system, teams build one MCP server per system and reuse it. The server is also the natural place to enforce authentication, per-user permissions, rate limits and logging, because every call passes through it.
MCP is not an agent framework and does not decide what an agent should do; it standardises how tools are described and served. It is also not a security boundary on its own: a server that exposes a delete tool to any client with no permission check is as dangerous as any other unguarded API. The value comes when the server is treated as a governed interface, with least-privilege tool sets and audit trails.
Who it really matters to
- CTO / Head of Engineering: one server per system, reused across agents and vendors, replaces a growing pile of one-off connectors.
- CISO: MCP servers are a single choke point for authentication, permissions and logging of what AI systems do to internal tools.
- Product manager: exposing your product through MCP lets customers' assistants use it, which is becoming an integration expectation.
- Operations head: internal tools become available to assistants staff already use, without a new interface to learn.
Why it exists
Every agent needed its own integrations to every system, and every vendor's assistant needed its own connector to your data. MCP exists to make tool integration a standard rather than a bespoke project each time, in the way an API specification did for web services. The failure it prevents is integration sprawl that nobody can secure or maintain. The trade-off is that a standard interface makes it easier to over-expose capabilities; teams must design servers with narrow tool sets and per-user authorisation, and evaluate agents on how they use them, rather than assume the protocol handles safety.
Where it is applied
- A SaaS company exposing its product through an MCP server so customers' AI assistants can act inside it with the user's permissions.
- A bank wrapping core-banking read operations in an internal MCP server used by several private agents, with every call logged.
- A hospital exposing scheduling and bed-status tools to internal assistants without giving any model direct database access.
- A logistics operator serving TMS and telematics tools to dispatch and customer-service agents from one governed server.
- An engineering team connecting internal wikis, ticketing and code repositories to coding assistants through MCP servers.
Is Model Context Protocol (MCP) a skill?
Standard / regulationAn open specification. Eazyware builds MCP servers over internal systems as part of private agentic AI and API development and integrations, with permission checks and audit logging inside the server rather than trusting the client.
Eazyware service that covers it: Agentic AI Solutions (self-hosted). Starting prices are on the pricing page.
Frequently asked questions
Is MCP secure by default?
No. It standardises how tools are described and called; it does not decide who may call them. Security comes from what the server exposes, how it authenticates the user behind each call, and what it logs. Treat a server like any other API.
Do we need MCP to build an agent?
No. Plain tool calling within your own application works fine. MCP pays off when several agents or third-party assistants need the same systems, or when you want customers' assistants to use your product without bespoke connectors.