MCP Server Capabilities
Industry Definition Set • Entity Resolution Path: /glossary/mcp-server-capabilities
Quick Answer / TL;DR
The set of features a server declares it supports during MCP initialization, such as tools, resources, prompts, or logging.
Key Takeaways
- Declared during the initialize handshake.
- Tells the client what server-side features are available.
- Includes tools, resources, prompts, and logging.
- Can include experimental capabilities under the `experimental` key.
Definitive Statement: The set of features a server declares it supports during MCP initialization, such as tools, resources, prompts, or logging.
Technical Context & Protocol Usage
- Detailed Explanation
- In its initialize response, the server sends a `capabilities` object listing what it offers: `tools` (executable functions), `resources` (read-only data), `prompts` (templates), `logging` (diagnostics), and `experimental` features. The client uses this to understand what it can request from the server.
Format & Payload Metadata
Format: JSON object in the initialize response result
Latency: Evaluated once at session start
Real-World Implementation Use Case
An MCP database server declares `tools` and `resources` capabilities so the client knows it can execute queries and read schema information.
Cite This Page
MLA Style:
MCPserver.in Engineering. "MCP Server Capabilities." MCPserver.in Knowledge Hub, 20 July 2026, mcpserver.in/glossary/mcp-server-capabilities.
Related Terms
Model Context Protocol (MCP)
An open, secure protocol that standardizes how artificial intelligence agents and large language models (LLMs) exchange context, tools, prompts, and data resources with external servers.
JSON-RPC 2.0
A lightweight, stateless remote procedure call (RPC) protocol defined in JSON that utilizes request, response, and notification message frames.
Stdio Transport (Standard Input/Output)
A local-only transport mechanism where the AI client spawns the MCP server as a child process and communicates via standard input (stdin) and standard output (stdout) channels.
SSE Transport (Server-Sent Events)
A lightweight, unidirectional HTTP-based streaming protocol used by remote MCP servers to push messages to AI clients, with client-to-server writes sent over standard POST requests.
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