piper-cli 0.0.5

Piper is a coding agent for data teams.

Piper CLI

Coding agents for data engineers - write code, manage databases, connect to Airflow and more.

Install

Requirements: macOS or Linux, Python 3.12, ripgrep:

brew install ripgrep          # macOS
sudo apt install ripgrep      # Ubuntu / Debian

You need a Solo plan subscription at data-engineer.ai.

pip install piper-cli

Setup

Set at least one LLM API key:

export ANTHROPIC_API_KEY="sk-ant-..."
export OPENAI_API_KEY="sk-proj-..."
export GEMINI_API_KEY="...

Then run:

piper

Configuration

Piper stores config in ~/.piper/:

~/.piper/
├── charts/               # Generated charts and visualizations
├── mcp/
│   └── servers.json      # MCP server configurations
├── plans/                # Saved execution plans
├── projects/             # Project-specific context
├── skills/               # User-defined reusable skills
├── .env                  # Environment variables (API keys, credentials)
├── chats.db              # Conversation history (SQLite)
├── config.json           # User preferences (model)
├── credentials.json      # Auth credentials (managed by CLI)
└── databases.yaml        # Database connections (Jinja2 templated)

Commands

/help /model /database /mcp /chats /subagents /tokens /upgrade /clear /logout /exit

Links

Docs · Pricing · data-engineer.ai