Super Singularity MCP Server
A Model Context Protocol (MCP) server for integrating Claude Desktop with Super Singularity's course creation API, ElevenLabs text-to-speech, and Azure Blob Storage.
Features
- Complete Course Management: Create, update, and manage courses
- All Card Types: Support for content, quiz, poll, form, video, audio, and link cards
- Text-to-Speech: Generate audio from text using ElevenLabs TTS
- Cloud Storage: Upload and host audio files on Azure Blob Storage
- Script Preservation: Store original script text in audio card contents
- Production Ready: Environment configuration, error handling, and timeout management
Quick Start
-
Clone and Install:
git clone <repository-url> cd mcp-servers uv sync -
Configure Environment:
cp .env.example .env # Edit .env with your API keys and configuration -
Add to Claude Desktop: Add to
~/Library/Application Support/Claude/claude_desktop_config.json:{ "mcpServers": { "super-singularity": { "command": "uv", "args": ["run", "python", "/path/to/mcp-servers/server.py"] } } } -
Restart Claude Desktop and start creating courses!
Environment Configuration
Required environment variables in .env:
# Super Singularity API
API_BASE_URL=https://your-api-domain.com
API_TOKEN=your-bearer-token-here
COMPANY_ID=your-company-id-here
# ElevenLabs TTS
ELEVENLABS_API_KEY=your-elevenlabs-api-key-here
ELEVENLABS_VOICE_ID=21m00Tcm4TlvDq8ikWAM
# Azure Blob Storage
AZURE_STORAGE_CONNECTION_STRING=DefaultEndpointsProtocol=https;AccountName=...
AZURE_CONTAINER_NAME=audio-files
Available Tools
Course Management
get_course(course_id)- Get course detailscreate_course(title, ...)- Create new courseget_course_cards(course_id)- Get all cards in course
Card Creation
create_content_card()- Text content with optional imagecreate_quiz_card()- Multiple choice questionscreate_poll_card()- Opinion polls for collecting learner feedbackcreate_form_card()- Form inputs for collecting learner responsescreate_video_card()- Video contentcreate_audio_card()- Audio content with optional script preservationcreate_link_card()- External resource links
Audio Generation
generate_audio_from_text(text, title)- Generate audio using ElevenLabs TTS- Creates audio files and uploads to Azure Storage
- Returns URL and script preservation instructions
Audio Card Workflow
Due to MCP limitations, audio card creation from script requires two steps:
-
Generate Audio:
generate_audio_from_text("Your script text here", "Audio Title") -
Create Card with Script Preservation:
create_audio_card(course_id, audio_url, title, script="Your script text here")
The script parameter preserves the original text in the card contents for future reference.
MCP Limitations Discovered
The Problem
MCP tools that combine multiple async operations (ElevenLabs + Azure + API requests) cause "Internal Server Error" in Claude Desktop, regardless of function names or implementation approach.
Failed Attempts
All of these caused Internal Server Errors:
create_audio_card_from_script()generate_audio_url_from_script()create_audio_card_using_script()test_helper_function_plus_api()
Working Solution
Separate tools for each operation:
generate_audio_from_text()- Only handles ElevenLabs + Azurecreate_audio_card()- Only handles API requests- Two-step workflow with clear instructions for script preservation
Root Cause Analysis
The limitation appears to be related to:
- Complex async operation chains in single MCP tools
- Timeout thresholds for multi-step operations
- Memory/resource constraints in Claude Desktop MCP client
- Event loop handling of combined external service calls
Community Validation
Our findings align with known MCP issues documented in the community:
- GitHub Issue #424: "MCP Timeout needs to be configurable"
- GitHub Issue #417: "MCP Server Internal Server Error Report"
- Multiple forum discussions about timeout errors and Internal Server Errors
Best Practices Learned
- Keep MCP tools simple and atomic - Single responsibility per tool
- Avoid combining multiple external service calls in one tool
- Use helper functions for complex operations, but call them from separate tools
- Provide clear instructions in tool responses to guide multi-step workflows
- Test incrementally when adding new integrations
API Documentation
Complete API documentation available in: documentation/external-api-documentation.md
Dependencies
mcp- Model Context Protocol Python SDKhttpx- Async HTTP client for API requestselevenlabs- ElevenLabs TTS integrationazure-storage-blob- Azure Blob Storage clientpython-dotenv- Environment variable management
License
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Contributing
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