PubNub Model Context Protocol (MCP) Server for Cursor IDE
@stephenlb
PubNub MCP Model Context Protocol Server for use in Cursor, Claude Desktop, Claude Code and OpenAI Codex and more!
Overview
What is PubNub Model Context Protocol (MCP) Server for Cursor IDE?
The PubNub Model Context Protocol (MCP) Server for Cursor IDE is a CLI-based MCP server that exposes PubNub SDK documentation and PubNub Functions resources to LLM-powered tools, enabling prompt-driven access to PubNub capabilities.
How to use PubNub Model Context Protocol (MCP) Server for Cursor IDE?
Install via npx -y @pubnub/mcp (requires Node.js >= 18). Configure in Cursor IDE by adding a mcp.json entry with command: "npx", args: ["-y", "@pubnub/mcp"], and optional PubNub keys as environment variables. Invoke resources like pubnub://docs/javascript or tools like publish_pubnub_message from the chat interface.
Key features of PubNub Model Context Protocol (MCP) Server for Cursor IDE
- Fetches formatted PubNub JavaScript, Python, and Java SDK documentation
- Accesses PubNub Functions documentation from a static Markdown file
- Publishes messages to PubNub channels
- Lists available PubNub Functions
- Retrieves message history and presence information
- Works with Cursor IDE, Claude Code, and Claude Desktop
Use cases of PubNub Model Context Protocol (MCP) Server for Cursor IDE
- Query PubNub SDK docs directly from an LLM chat (e.g., "Show me JavaScript SDK docs for subscribe()")
- Publish messages to PubNub channels using natural language prompts
- List available PubNub Functions resources
- Fetch Python or Java SDK documentation for specific methods
FAQ from PubNub Model Context Protocol (MCP) Server for Cursor IDE
What are the runtime requirements?
Node.js >= 18 and npm are required.
Do I need a PubNub account and API keys?
A PubNub account and API keys are optional for live actions like publishing messages; the server can still serve static documentation without them.
How do I configure the server in Cursor IDE?
Add a mcp.json entry (global at ~/.cursor/mcp.json or project-level .cursor/mcp.json) with the command npx, args ["-y", "@pubnub/mcp"], and optionally set environment variables for PUBNUB_SUBSCRIBE_KEY and PUBNUB_PUBLISH_KEY.
What transport protocol does the server use?
The server communicates over STDIN/STDOUT using JSON-RPC v2.0.
What documentation resources are available?
Resources include PubNub JavaScript, Python, and Java SDK docs, plus a static Markdown file for PubNub Functions.
