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Dictionary

MCP (Model Context Protocol)

Open standard letting AI clients call external tools, data and prompts.

2 min readupdated 2026-07-06

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The Model Context Protocol (MCP) is an open specification from Anthropic that standardises how LLM clients discover and call external servers exposing tools, resources and prompts. Instead of writing bespoke connectors per model, an MCP server can be reused by Claude, ChatGPT, Cursor, Windsurf, and any compliant client.

Open standard letting AI clients call external tools, data and prompts. The Model Context Protocol (MCP) is an open specification from Anthropic that standardises how LLM clients discover and call external servers exposing tools, resources and prompts. Instead of writing bespoke connectors per model, an MCP server can be reused by Claude, ChatGPT, Cursor, Windsurf, and any compliant client. In practice: You expose your Postgres database as an MCP server. Claude Desktop, Cursor and a local agent all query it with the same protocol — no per-client integration code. This dictionary node is part of the Onexial knowledge graph and links to related concepts, workflows and tools below.
Definition
The Model Context Protocol (MCP) is an open specification from Anthropic that standardises how LLM clients discover and call external servers exposing tools, resources and prompts. Instead of writing bespoke connectors per model, an MCP server can be reused by Claude, ChatGPT, Cursor, Windsurf, and any compliant client.
Example
You expose your Postgres database as an MCP server. Claude Desktop, Cursor and a local agent all query it with the same protocol — no per-client integration code.
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What is MCP (Model Context Protocol)?

The Model Context Protocol (MCP) is an open specification from Anthropic that standardises how LLM clients discover and call external servers exposing tools, resources and prompts. Instead of writing bespoke connectors per model, an MCP server can be reused by Claude, ChatGPT, Cursor, Windsurf, and any compliant client.

What is an example of MCP (Model Context Protocol)?

You expose your Postgres database as an MCP server. Claude Desktop, Cursor and a local agent all query it with the same protocol — no per-client integration code.

Why does MCP (Model Context Protocol) matter for AI and automation?

Open standard letting AI clients call external tools, data and prompts. It connects to the workflows, prompts and tool stacks linked on this page, so you can move from definition to execution without leaving Onexial.

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Related concepts

The vocabulary this page depends on.

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    EU AI Act Compliance refers to adhering to the regulatory framework established by the European Union to govern the development, deployment, and use of artificial intelligence systems within the EU.

  • Data Residency Compliance

    Data Residency Compliance refers to the legal requirement for data, particularly personal or sensitive data, to be stored and processed within specific geographic boundaries, typically a country or region.

  • AI Governance Framework

    An AI Governance Framework is a structured system of policies, processes, roles, and standards designed to guide the responsible, ethical, and compliant development and deployment of artificial intelligence systems within an organization.

  • MCP (Model Context Protocol)

    Open protocol that lets LLMs connect to tools, data sources and apps through a standard interface.

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Related prompts

Reusable prompts for this job.

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