The evolution of AI protocol: Why Model Context Protocol (MCP) can become the new HTTP for AI
Welcome to a new era of AI interoperability, where Model Context Protocol (MCP) prepares to provide agents and AI assistants with what HTTP does for the Web. If you are building, scaling, or analyzing an AI system, MCP is an open standard you can’t ignore – it provides a common contract that can discover tools in real time, acquire resources, and coordinate rich proxy workflows.
From split to standardization: the pre-AI protocol era
Between 2018 and 2023, integrators live in a world of fragmented APIs, custom connectors and countless hours to customize every feature call or tool integration. Each assistant or agent needs a unique pattern, custom connectors for GitHub or Slack and its own fragile handling of secrets. The context (whether it is a file, a database, or an embedded) is done with a one-time workaround.
The web faces the same problem before all the HTTP and URIS standards. AI desperately needs its own minimal, comboable contract, so any capable customer can plug into any server without glue code or custom hackers.
What has MCP actually standardized
Think of MCP as a universal bus for AI functions and contexts – Connecting hosts (agents/applications), clients (connectors), and servers (function providers) with clear interfaces: JSON-RPC messaging, a set of HTTP or STDIO shipping, and a defined security and negotiation contract.
MCP feature set
- tool: The typing function shown by the server described in JSON mode can be listed or called by any client.
- resource: Agents can reliably list, read, subscribe or update reliable contexts (files, tables, documents, uris).
- hint: Reusable prompt templates and workflows that you can dynamically discover, fill and trigger.
- sampling: When the server requires model interaction, the agent can delegate the LLM call or request to the host.
transportation: MCP runs via local STDIO (for fast desktop/server processes) and streaming http-requests, optional SSE for server events. The choice depends on size and deployment.
Safety: Definite user consent and OAuth style authorization designed for viewers. No token pass- the filer declares his identity, the server executes scope and approval under explicit UX prompts.
HTTP analogy
- Resource ≈ URL: Now, AI-Context blocks are routing, listable and obtainable.
- Tool ≈ HTTP method: The input interoperable action replaces the custom API call.
- Negotiation/version exploration≈Title/Content type: Capability negotiation, protocol versions and error handling are standardized.
Ways to Become “New HTTP for AI”
What makes MCP a reliable competitor to “HTTP for AI”?
Cross-approved adoption: MCP support is being launched extensively, from Claude Desktop and Jetbrains to the emerging cloud proxy framework – a connector that works anywhere.
Minimal core, strong convention: The core of MCP is simple – Core JSON-RPC plus clear API – makes the server as simple or complex as a requirement.
- Simple: a single tool, database or file server.
- Complex: mature prompt diagrams, event flow, multi-agent orchestration.
Running everywhere: Wrap local tools for security, or deploy enterprise-grade servers and reliable logging behind Oauth 2.1 – without sacrificing security.
Security, Governance and Audit: Built to meet business needs – oauth 2.1 traffic, audience tokens, explicit consent and audit trails are full of user data or tools.
Ecosystem momentum: Hundreds of open and commercial MCP servers now reveal databases, SaaS applications, search, observability, and cloud services. IDES and assistants converge on the protocol, exacerbating rapid adoption.
In-depth development of MCP architecture
The MCP architecture is intended to be direct:
- Initialization/negotiation: Client and server build functionality, negotiate versions and set security. Each server declares which tools, resources and tips it supports and which authentication is required.
- tool: Stable name for parameters, clear description and JSON mode (enable client UI, validation and call).
- resource: The roots and URIs exposed by the server, so AI agents can dynamically add, list or browse them.
- hint: Parameterized templates named consistent flows, such as “summary doc-stet” or “Repactor-pr”.
- sampling: The server may require the host to call LLM with explicit user consent.
- transportation: STDIO for fast/local processes; HTTP + SSE for production or remote communication. HTTP session adds status.
- Auth & Trust: OAuth 2.1 required for HTTP; the token must be for the audience and never be reused. All tool calls require explicit consent dialogue.
If MCP wins, what changes
If MCP becomes the main protocol:
- One connector, many customers: The vendor ships a single MCP server to any IDE or assistant that supports MCP.
- Portable Agent Skills: “Skills” become a server-side tool/tip that can be combined between the proxy and the host.
- Centralized policy: Enterprise Management Scope, Audit, DLP and Rate Limit Server-No fragmented controls.
- Quick Start: “Add” deep links (such as the browser’s protocol handler) install the connector immediately.
- No more fragile scratches: Context resources become the first category, replacing replication hacking.
Gap and risk: Hype Realism
- Standards Organizations and Governance: The MCP version is open and open, but has not yet become a formal IETF or ISO standard.
- Security supply chain: Thousands of servers need trust, signatures, sandboxes; OAuth must be implemented correctly.
- Ability creep: The protocol must be kept to a minimum; richer patterns belong to the library, not the core of the protocol.
- Service room composition: Moving resources across servers (e.g. from Concept → S3 → Indexer) requires a new IDEMPOTENCY/retry mode.
- Observability and SLA: Standard indicators and error classification are essential for strong production monitoring.
Migration: Adapter and First Script
- Inventory use cases: Map the current operation, connecting CRUD/Search/Workflow tools and resources.
- Define the pattern: A concise name, description and JSON pattern for each tool/resource.
- Select Shipping and Verification: STDIO for fast local prototypes; HTTP/OAUTH is used for cloud and team deployment.
- Shipping reference server: Start with a single domain and then scale to more workflows and motivate templates.
- Cross-customer testing: Make sure Claude Desktop, VS code/adverb, cursor, jet bridge, etc. All type together.
- Add a guardrail: Implement allowable lists, dry styles, consent prompts, rate limits and call logs.
- observe: Send tracking logs, metrics and errors. Add a circuit breaker for external API.
- Documentation/version: The publishing server reads files, ChangElog and Semver’D tool directories and respects version titles.
MCP server design comments
- Deterministic output: Structured results; return resource links to big data.
- Depotency key: The client provides the request_ID for a secure retry.
- Fine-grained range: Token range for each tool/operation (ReadOnly vs. Write).
- Human Online: Provides Dryrrun and planning tools so that users can see the effect of the plan first.
- Resource Directory: Reveal the list endpoints with paging; supports CACHE refreshed ETAG/UPDATAT.
Will MCP become “AI’s new HTTP?”
If “new HTTP” refers to a universal, low-friction contract that enables any AI customer to securely interact with any capability provider, then MCP is the closest we are today. Its tiny core, flexible shipping, typing contracts and clear security all bring the right ingredients. The success of MCP depends on neutral governance, industry weight and strong operating mode. Given the current momentum, MCP is in a realistic way to become the default interoperability layer between AI agents and the software they act as.
FAQ
FAQ 1: What is MCP?
MCP (Model Context Protocol) is an open, standardized protocol that allows AI models (such as assistants, agents, or large language models) to securely connect and interact with external tools, services, and data sources through common languages and interfaces.
FAQ 2: Why is MCP important to AI?
MCP eliminates custom, fragmented integration by providing a common framework that connects AI systems to real-time contexts (databases, APIs, business tools, and others), making models more accurate, relevant and proxy while improving security and scalability for developers and enterprises.
FAQ 3: How does MCP work in practice?
MCP uses a client server architecture with JSON-RPC messaging, supporting local (STDIO) and remote (HTTP+SSE) communication; the AI host sends requests to the MCP server, which reveals features and resources and handles authentication and consent, allowing secure, structured, cross-platform automation and data retrieval.
FAQ 4: How to get started using MCP in your project?
Deploy or reuse an MCP server for your data source, embed MCP clients into your host application, negotiate with JSON-RPC 2.0, and ensure any HTTP transmission using OAuth 2.1 oscilloscope and audience tokens.
Michal Sutter is a data science professional with a master’s degree in data science from the University of Padua. With a solid foundation in statistical analysis, machine learning, and data engineering, Michal excels in transforming complex data sets into actionable insights.