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Zulip MCP Server

by avisekrath
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Zulip MCP Server

A Model Context Protocol (MCP) server that exposes Zulip REST API capabilities as tools for LLMs. This server allows AI assistants to interact with your Zulip workspace programmatically.

Features

🔄 Resources (Contextual Data)

  • User Directory: Browse organization members with roles and status

  • Stream Directory: Explore available streams and permissions

  • Message Formatting Guide: Complete Zulip markdown syntax reference

  • Organization Info: Server settings, policies, and custom emoji

  • User Groups: Available groups for mentions and permissions

🛠️ Tools (25 Available Actions)

Helper Tools (LLM-Friendly Discovery)

  • search-users - Find users by name/email before sending DMs

  • get-started - Test connection and get workspace overview

Message Operations

  • send-message - Send to streams or direct messages

  • get-messages - Retrieve with advanced filtering and search

  • get-message - Get detailed information about specific message

  • upload-file - Share files and images

  • edit-message - Modify content or move topics

  • delete-message - Remove messages (admin permissions required)

  • get-message-read-receipts - Check who read messages

  • add-emoji-reaction - React with Unicode or custom emoji

  • remove-emoji-reaction - Remove emoji reactions from messages

Scheduled Messages & Drafts

  • create-scheduled-message - Schedule future messages

  • edit-scheduled-message - Modify scheduled messages

  • create-draft - Create new message drafts

  • get-drafts - Retrieve saved drafts

  • edit-draft - Update draft content

Stream Management

  • get-subscribed-streams - List user's stream subscriptions

  • get-stream-id - Get stream ID by name

  • get-stream-by-id - Detailed stream information

  • get-topics-in-stream - Browse recent topics

User Operations

  • get-users - List organization members

  • get-user-by-email - Find users by email

  • get-user - Get detailed user information by ID

  • update-status - Set status message and availability

  • get-user-groups - List available user groups

📝 Zulip Terminology: Streams vs Channels

In Zulip, "streams" and "channels" refer to the same concept:

  • Stream = Official Zulip terminology (used in API, tools, interface)

  • Channel = Common term from Slack/Discord/Teams

  • Same thing = Conversation spaces where teams discuss topics

This MCP server uses "stream" to match Zulip's official documentation and API.

Installation & Setup

Prerequisites

Quick Start

  1. Clone and install dependencies:

git clone <repository-url> cd zulip-mcp-server npm install

  1. Configure environment variables:

cp .env.example .env # Edit .env with your Zulip credentials

  1. Build and run:

npm run build npm start

Environment Configuration

Create a .env file with your Zulip credentials:

ZULIP_URL=https://your-organization.zulipchat.com ZULIP_EMAIL=your-bot-email@yourcompany.com ZULIP_API_KEY=your-api-key-here NODE_ENV=production

Getting Zulip API Credentials

  1. For Bot Access (Recommended):

    • Go to your Zulip organization settings

    • Navigate to "Bots" section

    • Create a new bot or use existing one

    • Copy the bot email and API key

  2. For Personal Access:

    • Go to Personal Settings → Account & Privacy

    • Find "API key" section

    • Generate or reveal your API key

Claude Desktop Integration

To use this MCP server with Claude Desktop, add the following configuration to your Claude Desktop config file:

Option 1: Using Environment Variables (Recommended)

Add to your Claude Desktop configuration:

{ "mcpServers": { "zulip": { "command": "node", "args": ["/path/to/zulip-mcp-server/dist/server.js"], "env": { "ZULIP_URL": "https://your-organization.zulipchat.com", "ZULIP_EMAIL": "your-bot-email@yourcompany.com", "ZULIP_API_KEY": "your-api-key-here" } } } }

Option 2: Using .env File

If you prefer using a .env file, ensure it's in the project directory and use:

{ "mcpServers": { "zulip": { "command": "node", "args": ["/path/to/zulip-mcp-server/dist/server.js"], "cwd": "/path/to/zulip-mcp-server" } } }

Claude Desktop Config Location:

  • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

  • Windows: %APPDATA%\Claude\claude_desktop_config.json

Cursor Integration

To use this MCP server with Cursor IDE, add the following to your Cursor MCP settings:

Cursor MCP Configuration

Add to Cursor's MCP settings file (.cursor-mcp/config.json in your workspace or global settings):

{ "mcpServers": { "zulip": { "command": "node", "args": ["/path/to/zulip-mcp-server/dist/server.js"], "env": { "ZULIP_URL": "https://your-organization.zulipchat.com", "ZULIP_EMAIL": "your-bot-email@yourcompany.com", "ZULIP_API_KEY": "your-api-key-here" }, "capabilities": { "tools": true, "resources": true } } } }

Cursor MCP Config Location:

  • Workspace: .cursor-mcp/config.json in your project root

  • Global: Platform-specific Cursor settings directory

Raycast MCP Extension

To use this MCP server with Raycast, configure it in the MCP extension settings:

Raycast MCP Configuration

Add to Raycast MCP extension configuration:

{ "servers": { "zulip": { "name": "Zulip Integration", "description": "Send messages and interact with Zulip workspace", "command": "node", "args": ["/path/to/zulip-mcp-server/dist/server.js"], "env": { "ZULIP_URL": "https://your-organization.zulipchat.com", "ZULIP_EMAIL": "your-bot-email@yourcompany.com", "ZULIP_API_KEY": "your-api-key-here" }, "icon": "💬", "categories": ["communication", "productivity"] } } }

Raycast Setup Steps:

  1. Install the Raycast MCP extension

  2. Open Raycast preferences → Extensions → MCP

  3. Add new server configuration

  4. Paste the JSON configuration above

  5. Update paths and credentials accordingly

Raycast Usage:

  • Use ⌘ + Space to open Raycast

  • Search for "Zulip" commands

  • Execute MCP tools directly from Raycast interface

Supported MCP Clients

This server is compatible with any MCP-compliant client. Here are the verified integrations:

Platform

Config Type

Status

Usage

Claude Desktop

JSON config

✅ Verified

AI conversations with Zulip integration

Cursor IDE

Workspace/Global config

✅ Verified

Code editor with Zulip notifications

Raycast

Extension config

✅ Verified

Quick commands and automation

Other MCP Clients

Standard MCP protocol

🔄 Compatible

Any MCP-compliant application

Universal MCP Command:

node /path/to/zulip-mcp-server/dist/server.js

Development

Scripts

npm run dev # Development with hot reload npm run build # Build for production npm test # Run tests npm run lint # Lint TypeScript npm run typecheck # Type checking

Project Structure

src/ ├── server.ts # Main MCP server ├── zulip/ │ └── client.ts # Zulip API client └── types.ts # TypeScript definitions

Testing

Test the server using MCP Inspector:

npx @modelcontextprotocol/inspector npm start

Usage Examples

Sending Messages

// Send to a stream await callTool("send-message", { type: "stream", to: "general", topic: "Daily Standup", content: "Good morning team! 👋\n\n**Today's Goals:**\n- Review PR #123\n- Deploy feature X" }); // Direct message await callTool("send-message", { type: "direct", to: "user@example.com", content: "Hey! Can you review the latest changes when you have a moment?" });

Getting Messages

// Get recent messages from a stream await callTool("get-messages", { narrow: [["stream", "general"], ["topic", "announcements"]], num_before: 50 }); // Search messages await callTool("get-messages", { narrow: [["search", "deployment"], ["sender", "admin@example.com"]] });

Stream Management

// List subscribed streams await callTool("get-subscribed-streams", { include_subscribers: true }); // Get stream topics await callTool("get-topics-in-stream", { stream_id: 123 });

Markdown Formatting Support

The server includes a comprehensive formatting guide resource. Zulip supports:

  • Standard Markdown: Bold, italic, code, links, lists

  • Mentions: @**Full Name** (notify), @_**Name**_ (silent)

  • Stream Links: #**stream-name**

  • Code Blocks: With syntax highlighting

  • Math: LaTeX expressions with $$math$$

  • Spoilers: ||hidden content||

  • Custom Emoji: Organization-specific emoji

Error Handling

The server provides comprehensive error handling:

  • Network connectivity issues

  • Authentication failures

  • Permission errors

  • Rate limiting

  • Invalid parameters

  • Zulip API errors

All errors include helpful messages for debugging.

Contributing

  1. Fork the repository

  2. Create a feature branch

  3. Add tests for new functionality

  4. Ensure TypeScript compilation passes

  5. Submit a pull request

Support

For issues and questions:

Deploy Server
A
security – no known vulnerabilities
F
license - not found
A
quality - confirmed to work

How are these scores calculated?

remote-capable server

The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.

Tools

View all tools

A Model Context Protocol server that enables AI assistants to interact with Zulip workspaces by exposing REST API capabilities as tools for message operations, channel management, and user interactions.

  1. Features
    1. 🔄 Resources (Contextual Data)
    2. 🛠️ Tools (25 Available Actions)
  2. 📝 Zulip Terminology: Streams vs Channels
    1. Installation & Setup
      1. Prerequisites
      2. Quick Start
      3. Environment Configuration
      4. Claude Desktop Integration
      5. Cursor Integration
      6. Raycast MCP Extension
      7. Supported MCP Clients
    2. Development
      1. Scripts
      2. Project Structure
      3. Testing
    3. Usage Examples
      1. Sending Messages
      2. Getting Messages
      3. Stream Management
    4. Markdown Formatting Support
      1. Error Handling
        1. Contributing
          1. Support

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