> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cascadeflow.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Installation

> Install cascadeflow with pip extras for Python or npm packages for TypeScript, including provider-specific setup.

## Python

### Minimal install

```bash theme={null}
pip install cascadeflow
```

Core dependencies: `pydantic>=2.0.0`, `httpx>=0.25.0`, `tiktoken>=0.5.0`, `rich>=13.0.0`.

### With providers

```bash theme={null}
pip install "cascadeflow[providers]"  # OpenAI + Anthropic + Groq
```

Individual providers:

```bash theme={null}
pip install "cascadeflow[openai]"      # OpenAI
pip install "cascadeflow[anthropic]"   # Anthropic
pip install "cascadeflow[groq]"        # Groq
pip install "cascadeflow[huggingface]" # Hugging Face
pip install "cascadeflow[together]"    # Together AI
```

### With framework integrations

```bash theme={null}
pip install "cascadeflow[langchain]"       # LangChain/LangGraph
pip install "cascadeflow[openai-agents]"   # OpenAI Agents SDK
pip install "cascadeflow[crewai]"          # CrewAI (Python 3.10+)
pip install "cascadeflow[google-adk]"      # Google ADK (Python 3.10+)
```

### Local inference

```bash theme={null}
pip install "cascadeflow[vllm]"  # vLLM (Python 3.10-3.13)
```

Ollama does not need a Python package — cascadeflow communicates with Ollama via HTTP at `localhost:11434`. Install Ollama separately from [ollama.ai](https://ollama.ai).

### Everything

```bash theme={null}
pip install "cascadeflow[all]"  # All providers + semantic routing
```

### Development

```bash theme={null}
git clone https://github.com/lemony-ai/cascadeflow.git
cd cascadeflow
pip install -e ".[dev]"
```

## TypeScript

### Core

```bash theme={null}
npm install @cascadeflow/core
```

### Framework packages

```bash theme={null}
npm install @cascadeflow/langchain                # LangChain integration
npm install @cascadeflow/vercel-ai                 # Vercel AI SDK middleware
npm install @cascadeflow/n8n-nodes-cascadeflow     # n8n community node
```

## Provider Setup

Set API keys as environment variables:

```bash theme={null}
export OPENAI_API_KEY="sk-..."
export ANTHROPIC_API_KEY="sk-ant-..."
export GROQ_API_KEY="gsk_..."
```

cascadeflow auto-detects available providers based on which API keys are set.

## Verify Installation

```bash theme={null}
python -c "import cascadeflow; print(cascadeflow.__version__)"
```

```bash theme={null}
python -c "from cascadeflow import init, run, HarnessConfig, HarnessRunContext; print('OK')"
```

## Next Step

Start observing your LLM calls with zero code changes. [Quickstart: Observe Mode →](/get-started/observe)