MCP as a foundational layer of the AI-native internet

I believe this is not only plausible but strategically inevitable, particularly as we transition from human-centric UX to agent-centric APIs, with autonomous AI agents acting on our behalf to plan, decide, transact, and operate.

In the same way websites transformed how businesses interact with human users, Model Context Protocol (MCP) servers are poised to become the foundational interface for AI agents. As enterprises prepare for an era of autonomous, agent-driven transactions, hosting MCP endpoints will not be optional, it will be essential. This point of view outlines why enterprises should treat MCP as a first-class interface layer, how it differs from traditional APIs, and what strategic advantages it unlocks in the agentic economy.

The Evolution of Enterprise Interfaces

• Web 1.0: Static websites provided informational access.
• Web 2.0: Interactive apps enabled personalized transactions.
• API Economy: REST and GraphQL APIs allowed system-to-system automation.
• Agentic Web (emerging): AI agents act on behalf of users to transact, plan, and coordinate.

In this evolution, MCP represents the agent-native interface that standardizes how agents understand, interact with, and persist stateful tasks across businesses.

What is MCP?

Model Context Protocol (MCP) is a machine-readable, task-oriented interface specification designed to:

• Provide structured context to AI models and agents.
• Persist task states across sessions.
• Enable shared memory across agents and tools.
• Offer semantic access to business workflows, data, and services.

Analogy: Websites vs. MCP Servers

MCP servers become the programmable front door for agents just as websites were for humans.

Use Case: United Airlines as an MCP Host

A travel agent AI (e.g., a personal assistant agent) wants to:

• Discover flights based on user preferences.
• Understand upgrade policies, loyalty programs.
• Book, cancel, or modify itineraries.
• Persist user preferences and history.

Instead of scraping websites or reverse-engineering APIs, the agent interacts with:

GET https://mcp.united.com/context/flight-planner
POST https://mcp.united.com/task/create

MCP enables stateful, secure, explainable interactions.

Strategic Advantages for Enterprises

1. Agent-Readiness: Position as a first-class citizen in the agent economy.
2. Reduced CX Load: Offload support and transactional work to autonomous agents.
3. Programmable Business Models: New monetization models via "agent services".
4. Trust & Transparency: Auditable, rule-governed agent interactions.
5. Interoperability: Aligns with open protocols and emerging agent frameworks.

Adoption Models

• Central MCP Server: Enterprise-wide agent interface for all workflows.
• Departmental MCP Nodes: Per-function context servers (e.g., HR, Finance).
• Federated Schema Governance: Align context standards across lines of business.

Call to Action

Forward-thinking enterprises must:

• Define their MCP schema aligned to core workflows.
• Expose secure endpoints to partner agents (start private, grow public).
• Invest in observability and explainability of agent interactions.
• Collaborate on standards to shape the agentic web.

The MCP server is the next logical interface layer in digital transformation. What the website was to users, the MCP endpoint will be to autonomous agents. Enterprises that embrace this shift will gain an early-mover advantage in automation, interoperability, and digital trust.

In the future, every serious business will have an MCP interface. The question is not if, but when.

Key Differences Between MCP and Function Calling

Function calling in LLMs (like OpenAI's function_call or Anthropic's tool use) was introduced to bridge the gap between language models and external tools or systems.

At a glance, Model Context Protocol (MCP) might seem like an extension of that. However, they serve different scopes, and understanding these differences is key to building enterprise-grade AI systems.

Visual Overview