MCP is an open standard that lets large language models call external tools through a declarative schema, without any provider-specific glue code.
Last verified: April 2026
What is MCP?
Also known as: Model Context Protocol
MCP is an open standard that lets large language models call external tools through a declarative schema, without any provider-specific glue code.
Model Context Protocol was introduced by Anthropic in 2024 and is now implemented by Claude Desktop, Claude Code, Cursor, Zed, and a growing list of third-party hosts. An MCP server declares a catalog of tools — each with a name, a description, and a JSON schema for inputs and outputs — and speaks either stdio or Server-Sent Events.
AGNT runs a production MCP server at /mcp/sse that exposes venue discovery, memory recall, and knowledge-graph lookups to any MCP client. Any LLM that speaks MCP can book a table through AGNT without writing a single line of REST client code.
FAQ
MCP FAQ.
Common questions about MCP in the AGNT platform.
MCP is an open standard that lets large language models call external tools through a declarative schema, without any provider-specific glue code.
People also ask.
Related terms
MCP Server
An MCP server is a process that exposes tools to LLMs via the Model Context Protocol — declaring each tool's name, description, and JSON schema, speaking over stdio or Server-Sent Events.
MCP Host
An MCP host is an environment that connects to external MCP servers and surfaces their tools to a language model — Claude Code, Cursor, and AGNT itself are all MCP hosts.
Tool Description
A tool description is the text an MCP tool declares to explain what it does — the single biggest lever for routing accuracy because LLMs decide whether to call a tool largely from its description.
AGNT Open Network
The AGNT Open Network is a public marketplace where external AI agents can search venues, confirm bookings, and subscribe to webhooks over REST, A2A, or MCP.
Authority sources
Source: agnt-backend/app/main.py:427-430
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What is MCP? MCP is an open standard that lets large language models call external tools through a declarative schema, without any provider-specific glue code. https://agntdot.com/glossary/mcp
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