Infleqtion

Infleqtion is a Louisville/Boulder, Colorado quantum-technology company — formerly ColdQuanta — that builds neutral-atom quantum computers, precision atomic clocks, and quantum sensors for governments, corporations, and research institutions. Its computing portfolio spans Sqale (a full-stack, fault-tolerant neutral-atom quantum computer), Quantum Cores (ready-to-use neutral-atom systems for laboratories), and Superstaq, an open-source quantum software platform with proprietary cross-layer optimization that compiles Qiskit, Cirq, and OpenQASM circuits down to hardware-native operations and routes them across heterogeneous quantum backends. Infleqtion's sensing portfolio includes the Tiqker optical atomic clock, Quantum Spectrum (Rydberg atomic spectrum sensing), and inertial sensors for GPS-denied positioning. The company was founded in 2007 as ColdQuanta, rebranded to Infleqtion in November 2022 after absorbing the Super.tech quantum-software acquisition, and became Infleqtion, Inc. (NASDAQ: INFQ) in January 2026. Superstaq (qiskit-superstaq, cirq-superstaq, general-superstaq) is the only developer-facing public surface; the hardware and sensing businesses are sold via direct engagement and government contracts rather than a self-serve API.

Infleqtion publishes 1 API on the APIs.io network. Tagged areas include Quantum Computing, Quantum Software, Neutral Atom, Atomic Clocks, and Quantum Sensing.

Infleqtion’s developer surface includes documentation, engineering blog, YouTube channel, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub

18.1/100 emerging ▬ flat Agent 0/100 human only self hosted · Apache-2.0 Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Quantum Computing Quantum Software Neutral AtomAtomic ClocksQuantum SensingSuperstaqSqaleTiqkerRydbergInertial SensingHardware Research

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 18.1/100 · emerging

Contract Quality 0.0 / 23

Developer Ergonomics 8.1 / 18

Access Clarity 0.0 / 18

Operational Transparency 2.2 / 12

Contract Governance 0.0 / 11

Discoverability 5.3 / 9

Open Source Surface 2.5 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 90 points between them, because the conditional facet above carries the other 10. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 90% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/infleqtion: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Superstaq

Superstaq is Infleqtion's open-source quantum software platform. Developers write circuits in Qiskit, Cirq, or OpenQASM, and Superstaq applies cross-layer compilation, dynamical...

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Infleqtion Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

DocumentLibrary

DocumentLibrary

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 3

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

Releases

Releases

Contact

Contact

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 8

The organization behind the API

Website

About

Newsroom

Blog

Careers

Investors

Twitter

LinkedIn

Scroll for all 8

Other 8

Properties that don't map to a standard resource type

QuantumSoftware

Product

Product

Product

Product

Product

Product

Research

Scroll for all 8

Source (apis.yml)

aid: infleqtion
name: Infleqtion
description: 'Infleqtion is a Louisville/Boulder, Colorado quantum-technology company — formerly ColdQuanta — that builds
  neutral-atom quantum computers, precision atomic clocks, and quantum sensors for governments, corporations, and research
  institutions. Its computing portfolio spans Sqale (a full-stack, fault-tolerant neutral-atom quantum computer), Quantum
  Cores (ready-to-use neutral-atom systems for laboratories), and Superstaq, an open-source quantum software platform with
  proprietary cross-layer optimization that compiles Qiskit, Cirq, and OpenQASM circuits down to hardware-native operations
  and routes them across heterogeneous quantum backends. Infleqtion''s sensing portfolio includes the Tiqker optical atomic
  clock, Quantum Spectrum (Rydberg atomic spectrum sensing), and inertial sensors for GPS-denied positioning. The company
  was founded in 2007 as ColdQuanta, rebranded to Infleqtion in November 2022 after absorbing the Super.tech quantum-software
  acquisition, and became Infleqtion, Inc. (NASDAQ: INFQ) in January 2026. Superstaq (qiskit-superstaq, cirq-superstaq, general-superstaq)
  is the only developer-facing public surface; the hardware and sensing businesses are sold via direct engagement and government
  contracts rather than a self-serve API.'
type: Index
deliveryModel:
  model: self-hosted
  license: Apache-2.0
  open_source: true
  commercial: false
  callable_host: false
  label: Self-hosted open source · you run it yourself
  confidence: high
  source:
  - license
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Producing
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/infleqtion.png
tags:
- Quantum Computing
- Quantum Software
- Neutral Atom
- Atomic Clocks
- Quantum Sensing
- Superstaq
- Sqale
- Tiqker
- Rydberg
- Inertial Sensing
- Hardware
- Research
url: https://raw.githubusercontent.com/api-evangelist/infleqtion/refs/heads/main/apis.yml
created: '2026-05-24'
modified: '2026-05-24'
specificationVersion: '0.23'
apis:
- aid: infleqtion:superstaq
  name: Superstaq
  description: Superstaq is Infleqtion's open-source quantum software platform. Developers write circuits in Qiskit, Cirq,
    or OpenQASM, and Superstaq applies cross-layer compilation, dynamical-decoupling error mitigation, and hardware-native
    gate decomposition to deliver up to ~10x performance on benchmarks. Distributed as three pip packages — qiskit-superstaq,
    cirq-superstaq, and general-superstaq — backed by a hosted execution service that routes jobs across heterogeneous quantum
    backends. Apache 2.0 licensed client; the underlying REST service requires an Infleqtion API key obtained via request.
  humanURL: https://superstaq.readthedocs.io/en/latest/
  tags:
  - Quantum Computing
  - Quantum Software
  - Compilation
  - Error Mitigation
  properties:
  - type: Documentation
    url: https://superstaq.readthedocs.io/en/latest/
  - type: GettingStarted
    url: https://superstaq.readthedocs.io/en/latest/get_started/installation.html
  - type: SourceCode
    url: https://github.com/Infleqtion/client-superstaq
  - type: SDKs
    url: https://pypi.org/project/qiskit-superstaq/
  - type: SDKs
    url: https://pypi.org/project/cirq-superstaq/
  - type: SDKs
    url: https://pypi.org/project/general-superstaq/
  - type: WhitePaper
    url: https://arxiv.org/abs/2309.05157
  - type: Forums
    url: https://join.slack.com/t/superstaq/shared_invite/zt-1wr6eok5j-fMwB7dPEWGG~5S474xGhxw
  - type: Support
    url: mailto:superstaq@infleqtion.com
common:
- type: IssueTracker
  url: https://github.com/Infleqtion/client-superstaq/issues
- type: Releases
  url: https://github.com/Infleqtion/client-superstaq/releases
- type: License
  name: Apache-2.0
  url: https://github.com/Infleqtion/client-superstaq/blob/main/LICENSE
- type: DomainSecurity
  url: security/infleqtion-domain-security.yml
- type: Website
  url: https://www.infleqtion.com
- type: About
  url: https://infleqtion.com/about/
- type: QuantumSoftware
  url: https://infleqtion.com/quantum-software/
- type: Product
  url: https://infleqtion.com/quantum-computing/
- type: Product
  url: https://infleqtion.com/quantum-cores/
- type: Product
  url: https://infleqtion.com/tiqker/
- type: Product
  url: https://infleqtion.com/quantum-spectrum/
- type: Product
  url: https://infleqtion.com/inertial-sensing/
- type: Product
  url: https://infleqtion.com/contextual-machine-learning/
- type: Documentation
  url: https://superstaq.readthedocs.io/en/latest/
- type: GitHubOrganization
  url: https://github.com/Infleqtion
- type: Research
  url: https://infleqtion.com/research/
- type: DocumentLibrary
  url: https://infleqtion.com/document-library/
- type: Newsroom
  url: https://infleqtion.com/newsroom/
- type: Blog
  url: https://infleqtion.com/blog/
- type: Careers
  url: https://infleqtion.com/careers/
- type: Contact
  url: https://infleqtion.com/contact/
- type: Investors
  url: https://finance.yahoo.com/quote/INFQ/
- type: Twitter
  url: https://x.com/infleqtion
- type: LinkedIn
  url: https://www.linkedin.com/company/infq/
- type: YouTube
  url: https://www.youtube.com/coldquanta
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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