Model Context Protocol
Also called: mcp, MCP
The Model Context Protocol (MCP) is an open standard, introduced by Anthropic in November 2024, that lets AI applications like Claude and ChatGPT connect to external data sources, tools, and workflows through one shared interface instead of custom, one-off integrations.
How MCP works
The official docs describe MCP as “a USB-C port for AI applications”: one standardized way to plug an assistant into outside systems. It uses a client-server model. An MCP host (the AI app, such as Claude Desktop or VS Code) starts one MCP client for each MCP server it connects to. Servers expose three primitives: tools (functions the model can call), resources (data it can read), and prompts (reusable templates). Messages travel over JSON-RPC 2.0, with two transports, stdio for local servers and Streamable HTTP for remote ones.
A typical exchange: the client calls tools/list to discover what a server offers, then tools/call to run one.
{ "method": "tools/call",
"params": { "name": "weather_current",
"arguments": { "location": "San Francisco" } } }Anthropic released MCP to replace fragmented, per-source integrations with a single protocol. Through 2025 it moved from an Anthropic project to a broadly supported standard, with OpenAI and Google DeepMind adopting it and clients like ChatGPT, Cursor, and VS Code shipping support. MCP focuses only on how context and actions flow in and out; it does not dictate how the model reasons or uses that context.
How it affects your traffic
MCP is not a search ranking signal, so do not expect it to move keyword positions on its own. It matters because it is the plumbing behind the AI assistants that increasingly sit between users and your website: as people ask Claude or ChatGPT instead of clicking ten blue links, your visibility depends on whether those assistants surface and cite your content, and eventually on whether you expose your own data and tools to them through a server. Getting picked up in AI answers, and deciding where an MCP integration fits your funnel, is the work our AI SEO service handles.
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