ML Lab MCP

A comprehensive MCP (Model Context Protocol) server for ML model training, fine-tuning, and experimentation. Transform your AI assistant into a full ML engineering environment.

Features

Unified Credential Management

• Encrypted vault for API keys (Lambda Labs, RunPod, Mistral, OpenAI, Together AI, etc.)
• PBKDF2 key derivation with AES encryption
• Never stores credentials in plaintext

Dataset Management

• Register datasets from local files OR client-provided content (JSONL, CSV, Parquet)
• Upload datasets directly without server filesystem access
• Automatic schema inference and statistics
• Train/val/test splitting
• Template-based transformations

Experiment Tracking

• SQLite-backed experiment storage
• Version control and comparison
• Fork experiments with config modifications
• Full metrics history

Multi-Backend Training

• Local: transformers + peft + trl for local GPU training
• Mistral API: Native fine-tuning for Mistral models
• Together AI: Hosted fine-tuning service
• OpenAI: GPT model fine-tuning

Cloud GPU Provisioning

• Lambda Labs: H100, A100 instances
• RunPod: Spot and on-demand GPUs
• Automatic price comparison across providers
• Smart routing based on cost and availability

Remote VPS Support

• Use any SSH-accessible machine (Hetzner, Hostinger, OVH, home server, university cluster)
• Automatic environment setup
• Dataset sync via rsync
• Training runs in tmux (persistent across disconnects)
• Amortized hourly cost calculation from monthly fees

Cost Estimation

• Pre-training cost estimates across all providers
• Real-time pricing queries
• Time estimates based on model and dataset size

Ollama Integration

• Deploy fine-tuned GGUF models to Ollama
• Pull models from Ollama registry
• Chat/inference testing directly from MCP
• Model management (list, delete, copy)

Open WebUI Integration

• Create model presets with system prompts
• Knowledge base management (RAG)
• Chat through Open WebUI (applies configs + knowledge)
• Seamless Ollama ↔ Open WebUI workflow

Installation

pip install ml-lab-mcp
# With training dependencies
pip install ml-lab-mcp[training]
# With cloud provider support
pip install ml-lab-mcp[cloud]
# Everything
pip install ml-lab-mcp[training,cloud,dev]

Quick Start

1. Initialize and Create Vault

ml-lab init
ml-lab vault create

2. Add Provider Credentials

ml-lab vault unlock
ml-lab vault add --provider lambda_labs --api-key YOUR_KEY
ml-lab vault add --provider mistral --api-key YOUR_KEY

3. Configure with Claude Code / Claude Desktop

Add to your MCP configuration:

{
"mcpServers": {
"ml-lab": {
"command": "ml-lab",
"args": ["serve"]
}
}
}

MCP Tools

Credentials

Tool	Description
creds_create_vault	Create encrypted credential vault
creds_unlock	Unlock vault with password
creds_add	Add provider credentials
creds_list	List configured providers
creds_test	Verify credentials work (Lambda Labs, GCP, OpenAI supported)

Datasets

Tool	Description
dataset_register	Register a dataset from a local file
dataset_register_content	Register a dataset from client-provided content (CSV, JSON, JSONL, Parquet)
dataset_list	List all datasets
dataset_inspect	View schema and statistics
dataset_preview	Preview samples
dataset_split	Create train/val/test splits
dataset_transform	Apply template transformations

Experiments

Tool	Description
experiment_create	Create new experiment
experiment_list	List experiments
experiment_get	Get experiment details
experiment_compare	Compare multiple experiments
experiment_fork	Fork with modifications

Training

Tool	Description
train_estimate	Estimate cost/time across providers
train_launch	Start training run
train_status	Check run status
train_stop	Stop training

Infrastructure

Tool	Description
infra_list_gpus	List available GPUs with pricing
infra_provision	Provision cloud instance
infra_terminate	Terminate instance

Remote VPS

Tool	Description
vps_register	Register a VPS (host, user, key, GPU info, monthly cost)
vps_list	List all registered VPS machines
vps_status	Check VPS status (online, GPU, running jobs)
vps_unregister	Remove a VPS from registry
vps_setup	Install training dependencies on VPS
vps_sync	Sync dataset to VPS
vps_run	Run command on VPS
vps_logs	Get training logs from VPS

Ollama

Tool	Description
ollama_status	Check Ollama status (running, version, GPU)
ollama_list	List models in Ollama
ollama_pull	Pull model from registry
ollama_deploy	Deploy GGUF to Ollama
ollama_chat	Chat with a model
ollama_delete	Delete a model

Open WebUI

Tool	Description
owui_status	Check Open WebUI connection
owui_list_models	List model configurations
owui_create_model	Create model preset (system prompt, params)
owui_delete_model	Delete model configuration
owui_list_knowledge	List knowledge bases
owui_create_knowledge	Create knowledge base
owui_add_knowledge_file	Add file to knowledge base
owui_chat	Chat through Open WebUI

Security

Tool	Description
security_audit_log	View recent audit log entries
security_audit_summary	Get audit activity summary
security_tailscale_status	Check Tailscale VPN connection
security_ssh_key_rotate	Rotate SSH key for a VPS
creds_expiry_check	Check credential expiry status
creds_rotate	Rotate credentials for a provider

Codex Integration (Executor LLM)

Tool	Description
codex_status	Check if Codex CLI is available
codex_analyze_error	Have Codex analyze errors and suggest fixes
codex_generate_training_script	Generate training script from experiment config
codex_fix_code	Have Codex fix issues in training code
codex_optimize_config	Optimize training config for quality/speed/memory
codex_debug_training	Debug training issues from logs
codex_run	Run arbitrary task with Codex

Architecture: Separation of intelligence vs execution:

• Planner LLM (Claude): Reasoning, architecture, tradeoffs
• Executor LLM (Codex): Precise code edits + CLI work
• World tools (ML Lab): Data, training, infra, deployment

Deep Thinking Analysis (Ollama Reasoning Models)

Tool	Description
thinking_analyze	Run deep analysis with reasoning models (DeepSeek R1, QwQ)
thinking_schedule	Schedule automated analysis (after training, daily, weekly)
thinking_reports	List and retrieve analysis reports

Analysis Types:

• training - Analyze loss curves, convergence, hyperparameters
• experiment - Compare experiments, suggest improvements
• activity - Review audit logs for patterns/anomalies
• cost - Cost efficiency analysis and recommendations
• dataset - Data quality and training suitability

Schedule Frequencies:

• after_training - Auto-analyze when training completes
• hourly / daily / weekly - Periodic reviews

Reports stored in ~/.cache/ml-lab/reports/ for historical reference.

Example Workflow

User: Fine-tune Llama 3.1 8B on my customer support data
Claude: I'll help you fine-tune Llama 3.1 8B. Let me first check your data.
[Uses dataset_register to load ./support_data.jsonl]
Found 15,000 samples. Let me estimate the costs:
[Uses train_estimate]
| Provider | Time | Cost | Availability |
|---------------|--------|--------|--------------|
| vps:hetzner-01| ~4h | $0.28* | Idle |
| Local (4090) | ~12h | $0 | Ready |
| Lambda H100 | ~2h | $5.50 | 3 available |
| Together API | ~4h | $12 | Queued |
*amortized from $200/mo
Which would you prefer?
User: Use Lambda Labs
Claude: [Uses experiment_create, then train_launch with backend=lambda]
Training started! Run ID: abc123
I'll monitor progress and let you know when it completes.

Architecture

src/ml_lab/
├── server.py # MCP server entry point (61 tools)
├── credentials.py # Encrypted credential vault
├── cli.py # Command-line interface
├── backends/
│ ├── base.py # Training backend interface
│ ├── local.py # Local GPU training
│ ├── mistral_api.py # Mistral fine-tuning API
│ ├── together_api.py # Together AI API
│ ├── openai_api.py # OpenAI fine-tuning API
│ └── vertex_api.py # Google Vertex AI (Gemini)
├── cloud/
│ ├── base.py # Cloud provider interface
│ ├── lambda_labs.py # Lambda Labs integration
│ ├── runpod.py # RunPod integration
│ ├── modal_provider.py # Modal integration
│ └── remote_vps.py # Generic SSH VPS support (+ Tailscale)
├── storage/
│ ├── datasets.py # Dataset management
│ └── experiments.py # Experiment tracking
├── inference/
│ ├── ollama.py # Ollama integration
│ ├── openwebui.py # Open WebUI integration
│ └── thinking.py # Deep thinking analysis (DeepSeek R1, QwQ)
├── integrations/
│ └── codex.py # Codex CLI integration (executor LLM)
├── security/
│ └── audit.py # Audit logging
└── evals/
└── benchmarks.py # Evaluation suite

Security

• Credentials encrypted with Fernet (AES-128-CBC)
• PBKDF2-SHA256 key derivation (480,000 iterations)
• Vault file permissions set to 600 (owner read/write only)
• API keys never logged or transmitted unencrypted
• Audit logging: All sensitive operations logged to ~/.cache/ml-lab/audit.log
• Credential expiry: Automatic tracking with rotation reminders
• Tailscale support: Optional VPN requirement for VPS connections
• SSH key rotation: Automated rotation with rollback on failure

Supported Providers

Compute Providers

• Lambda Labs (H100, A100, A10)
• RunPod (H100, A100, RTX 4090)
• Modal (serverless GPU functions)

Fine-Tuning APIs

• Mistral AI (Mistral, Mixtral, Codestral)
• Together AI (Llama, Mistral, Qwen)
• OpenAI (GPT-4o, GPT-3.5)
• Google Vertex AI (Gemini 1.5 Pro, Gemini 1.5 Flash)

Model Hubs

• Hugging Face Hub
• Replicate
• Ollama (local GGUF models)

Contributing

Contributions welcome! Please read CONTRIBUTING.md for guidelines.

License

PolyForm Noncommercial 1.0.0 - free for personal use, contact for commercial licensing.

See LICENSE for details.