Run terminal commands through a proxy with session-scoped routing from 120+ countries
Python framework for building and simulating dynamical systems using block diagrams
Stage
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Founded
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Based in
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Pricing model
Freemium
Open source
Pricing
Free with your own proxy. Built-in routes: $3 per GB for residential IPs, $1 per GB for datacenter IPs. New accounts start with $1 free credit, no card required. No monthly fees, no minimum spend, no contracts.
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Key features
Interactive shell mode for maintaining country connection across multiple commands
Single command execution through proxy with shellroute run
Support for 120+ countries and cities
Residential and datacenter proxy options
Session-scoped isolation keeping other apps on normal connection
IP rotation support within active sessions
SOCKS5 and HTTP/HTTPS proxy support
Bandwidth metering and usage tracking
Kill switch protection and auto-reconnect
CLI and API access
30+ solvers including implicit, explicit, and adaptive integrators
Zero-crossing detection and scheduled events for hybrid systems
Hot-swappable blocks and solvers during active simulation
Hierarchical subsystems for modular component design
MIMO support with multiple input and output ports
Browser-based visual editor with PathView
Domain toolboxes for chemical, battery, vehicle, flight, and RF engineering
Custom blocks through subclassing the base Block class
Supports continuous-time, discrete-time, and hybrid systems
FMI integration to wrap Co-Simulation and Model-Exchange FMUs
What makes it different
No subscription model: pay only per GB used with no contracts or minimum spend
Bring your own proxy or use built-in routes without signup requirements
One-command country selection instead of VPN or per-tool proxy configuration
Isolated proxy sessions keeping other terminals and apps unaffected
Open-source CLI tool designed for developer workflows in the terminal
Readable, scriptable alternative to traditional simulation tools with solver depth
Full ecosystem including FastSim Rust engine and standalone C code generation
Minimal runtime dependencies: only numpy, scipy, and matplotlib
Domain-specific toolboxes for chemical, battery, vehicle, flight, and RF engineering