Open Source

OPEN SOURCE

AI Tools for Developers.

Terminal-native AI agents built for developers who live in the command line. Open source, multi-model, and designed to get out of your way.

~$ npm install -g @calliopelabs/cli

~$ calliope

The Tools

Calliope CLI

The simplest way to use AI from your terminal. One command to install, one command to run. Switch models and providers on the fly. Run autonomous loops for complex tasks.

npm install -g @calliopelabs/cli

Documentation

Multi-Model Gateway

The CLI uses a unified model gateway supporting 12+ providers. Hot-swap providers without code changes. Use the best model for each task.

Anthropic, OpenAI, Google, Mistral, Groq, Together, Fireworks, AI21, HuggingFace, OpenRouter, LiteLLM, Ollama.

Documentation

CLI Features

Multi-model

Claude, GPT, Gemini, Mistral, Ollama, and more. Switch between providers seamlessly.

Switch Providers

/provider anthropic, /provider openai, /provider google — Change AI providers with a single command.

Autonomous Loops

Run tasks to completion with /loop — Let the AI work until the job is done.

Persona Modes

Calliope (creative), Professional, Minimal — Choose the personality that fits your workflow.

Tool Execution

Shell commands, file operations, structured reasoning — Full system integration.

God Mode

Run without permission prompts for trusted tasks — Maximum productivity when you need it.

AUTONOMOUS LOOPS

Run complex tasks until completion.

The loop runs your prompt repeatedly, with each iteration seeing previous work. Stops when it outputs the completion promise or hits max iterations.

Perfect for refactoring, migrations, or any task that needs multiple iterations to complete.

Example: TypeScript Strict Mode Migration

calliope> /loop "Refactor all TypeScript to strict mode. Fix each error. Output DONE when tsc passes." --max-iterations 30 --completion-promise "DONE"

Getting Started with Calliope CLI

Few simple steps to start building with AI

Install Calliope CLI

Quick installation via npm. One command gets you started.