What the QCOS quantum operating system does
QCOS is the SoftQuantus operating system for quantum computers: a vendor-neutral runtime for quantum, GPU and hybrid workloads. Use it to submit circuits, route jobs to simulators or QPUs, estimate cost, retrieve evidence and expose quantum capabilities to applications and LLM agents.Quantum OS user manual
The complete end-user manual for the quantum operating system — no quantum background assumed.
Quantum computing use cases
QAOA portfolio optimisation, Grover DNA search, Shor RSA assessment and VQE chemistry.
Interfaces for running quantum circuits
QCOS quick start
Run a Bell-state circuit through the API, SDK, CLI or MCP in a few minutes.
REST API
Integrate QCOS from any application using HTTPS, API keys and JSON.
Python SDK
Build applications, notebooks and pipelines with
softqcos-sdk.CLI
Operate QCOS from local terminals, CI/CD and automation scripts.
MCP Server
Let Claude, Codex and other MCP-compatible agents call QCOS tools.
QuantumLock
Activate, validate and audit commercial QCOS licenses.
How to run a quantum circuit on QCOS
1
Create a SoftQuantus account
Open platform.softquantus.com, create an organization and generate a scoped API key.
2
Choose an interface
Use REST for applications, the Python SDK for notebooks and services, the CLI for automation, or MCP for LLM agents.
3
Submit jobs safely
Start on
simulator_aer, estimate cost, then move approved workloads to IBM Quantum, AWS Braket, Azure Quantum, IonQ or configured private providers.4
Track usage and evidence
Review credits, job status, result artifacts, evidence bundles and license validation logs.