QuantumAPI CLI
February 18, 2026 February 27, 2026 v1.1.0
The QuantumAPI CLI (qapi) is a command-line tool for encrypting, signing, and managing secrets directly from your terminal. It provides a fast, scriptable interface to all QuantumAPI services.
Built as a single static binary with no dependencies, the CLI runs on macOS, Windows, and Linux. It's designed for CI/CD pipelines, automation scripts, and developers who prefer working in the terminal.
Key features
Encrypt & Decrypt
Encrypt files and data with ML-KEM post-quantum encryption.
Key Management
Create, rotate, and manage encryption keys from the command line.
Secret Vault
Store, retrieve, and inject secrets into your applications.
CI/CD Ready
Integrate with GitHub Actions, GitLab CI, and other pipelines.
Quantum-Safe
All operations use NIST-standardized post-quantum algorithms.
Fast & Lightweight
Single binary, no dependencies, instant startup.
Quick start
Install and authenticate
# macOS / Linux — curl (recommended)
curl -sSL https://docs.quantumapi.eu/cli/install.sh | sh
# macOS / Linux — Homebrew
brew install quantumapi-eu/tap/qapi
# Windows — PowerShell (no admin required)
irm https://docs.quantumapi.eu/cli/install.ps1 | iex
# All platforms — npm (requires Node.js)
npm install -g @quantumapi/cli
# Login (opens browser, OAuth2 PKCE)
qapi login
# Check it works
qapi health
# Encrypt a file
qapi encrypt -k my-key -i secret.txt -o secret.enc