systemprompt-mcp-reddit

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A specialized Model Context Protocol (MCP) server that enables AI agents to interact with Reddit, including reading posts, creating content, and managing subreddit configurations. The server is designed to work specifically with systemprompt.io client that support sampling and notification features, and may not function properly with other MCP clients.

An API KEY is required to use this server. This is currently free, although this may change in the future. You can get one here.

This server uses Sampling and Notification functionality from the @modelcontextprotocol/sdk.

Features

Core Functionality

Subreddit Configuration: Configure and manage multiple subreddits for the AI agent
Content Retrieval: Fetch hot, new, or controversial posts from configured subreddits
Content Creation: Generate AI-powered posts and replies with customizable parameters
Writing Style Control: Configure tone, vocabulary, and content guidelines for the AI

Advanced Features

Rule Compliance: Automatic adherence to subreddit rules and requirements
Content Guidelines: Customizable instructions for content generation
Flexible Post Types: Support for both text and link posts
Smart Replies: Context-aware response generation

Integration Features

MCP Protocol Integration: Full implementation of Model Context Protocol
Type-Safe Implementation: Complete TypeScript support
Real-Time Processing: Supports streaming responses
Advanced Error Handling: Comprehensive error management

System Architecture

This project follows a modular architecture designed to be adaptable for other MCP server implementations:

Core Components

MCP Protocol Layer: Implements the complete Model Context Protocol
Service Layer: Abstracts Reddit API interactions
Handler Layer: Routes and processes MCP requests
Tool Layer: Defines operations AI agents can perform
Utility Layer: Provides helpers for validation and data transformation

Directory Structure

/src/config: Server configuration and capabilities
/src/constants: Tool schemas, sampling templates, and system constants
/src/handlers: Request handlers and tool implementations
/src/services: API integration services
/src/types: TypeScript type definitions
/src/utils: Utility functions and helpers

For detailed documentation of the architecture and implementation patterns, see:

ARCHITECTURE.md: Complete system overview
TEMPLATE_GUIDE.md: Guide for creating new MCP servers

Using as a Template

This codebase is designed to serve as a template for creating other MCP servers. The modular architecture makes it straightforward to replace the Reddit integration with other APIs:

Replace the service layer with your API implementation
Define new tools appropriate for your domain
Update type definitions and schemas
Configure server capabilities

See TEMPLATE_GUIDE.md for detailed step-by-step instructions.

🎥 Demo & Showcase

Watch our video demonstration to see Systemprompt MCP Reddit in action:

▶️ Watch Demo Video

systemprompt-mcp-reddit