Introducing The Quantum Infrastructure Cloud Learn more

Software infrastructure

The software between your work and a quantum computer.

QCOS is how you write a quantum job, send it and get back a result you can check. Softquantus Cloud reaches the computers. The Research Platform keeps the accounts.

See QCOSTalk to us

Three layers, each with one job.

Development

Write a job and estimate it from the SDK, the CLI, MCP or the REST API, in the tools you already keep open.

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Deployment

Put that job inside your own software and your own queues, with access keys, cost checks and a record.

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Execution

QCOS checks the job and hands it to Softquantus Cloud. The result comes back with evidence you can check offline.

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What it looks like

A job, from the first line to the record.

A researcher aligning optics on a vacuum chamber in a laboratory.

Python SDK

from softqcos_sdk import QCOSClient

qcos = QCOSClient(api_key="your-api-key")

job = qcos.jobs.submit(
    qasm=bell_state,
    backend_id="simulator",
    shots=1000,
)
result = qcos.jobs.wait(job["job_id"])
print(result["result"]["counts"])

From your own code

A short Python program submits a circuit, waits and reads the counts. The CLI and MCP reach the same jobs.

Before the job runs

  • Estimated costReturned by the dry run
  • Plan limitsChecked before the job runs
  • Credit balanceChecked before the job runs
  • Cost confirmationHardware and higher-cost jobs

Cost before compute

A dry run returns the estimated cost, and QCOS checks the job against your plan limits and credit balance.

Machines by kind

through Softquantus Cloud

  • CPU state-vectorSoftQuantus simulator
  • Trapped-ionQuantum computer
  • SuperconductingQuantum computer
  • Neutral-atomQuantum computer

One path to every kind of machine

You name the backend. Every computer, simulator or otherwise, is reached through Softquantus Cloud.

Softquantus Research Platform

  • Workspaces
  • API keys
  • Usage
  • Credits

One place for the accounts

Workspaces, access keys, usage and credits live on the Softquantus Research Platform, apart from the science.

Circuit hash

SHA-256

Backend identity

Named for the job

Measurement results

With parameters and seeds

A result you can check

Every run leaves SHA-256 content hashes under one Merkle root, sealed and ready to check offline.

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Make quantum computers useful today.

That is our mission, and it starts with the ordinary things: a job you can send from your own code, a cost you see first and a result anyone can check.

Read the mission and roadmap
  • QCOS is software. It provides no computer of its own.
  • You name the backend for every job.
  • Hardware runs and higher-cost jobs wait until you confirm the cost.
  • One Platform for access, usage and credits.

Where the jobs go

Quantum systems and integration

How a machine connects to QCOS through Softquantus Cloud.

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Machines

Simulators, quantum computers and supercomputers, by kind and path.

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Hardware testbed

Everything we test up to the chip, and what we are building next.

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Cropped and recompressed. Film: NASA Ames Research Center (public domain); Laboratory photograph: NIST (public domain); Colour field derived from: NIST (public domain). These machines and facilities are not SoftQuantus sites or customers, and no partnership or endorsement is implied.