Quantum Circuits

Quantum Circuits, Inc. is a quantum computing hardware company (a Yale University spinout) building superconducting quantum systems with built-in error detection. Its dual-rail cavity qubits pair Quantum Error Detection (QED), Real-Time Control Flow (RTCF), and Error Detection Handling (EDH), and its Aqumen Seeker QPU (introduced November 2024) targets stable, repeatable, fault-tolerant quantum computation. The company engages early users through a Strategic Quantum Release (SQR) program that includes a simulator and access to Aqumen Seeker systems, rather than a public self-serve API. Surfaced as a portfolio company of Canaan Partners and added to the API Evangelist network.

Quantum Circuits is profiled on the APIs.io network. Tagged areas include Company, Quantum Computing, Quantum Hardware, Superconducting Qubits, and Error Correction.

Quantum Circuits’ developer surface includes engineering blog, support, and 3 more developer resources.

🌐 Visit website 📡 Source on GitHub
12.3/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyQuantum ComputingQuantum HardwareSuperconducting QubitsError CorrectionDeep TechResearch

Kin Score

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scored 2026-07-27 · rubric v0.5
Composite quality — 12.3/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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
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Resources

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: quantum-circuits
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/quantum-circuits.png
name: Quantum Circuits
description: Quantum Circuits, Inc. is a quantum computing hardware company (a Yale University spinout) building superconducting
  quantum systems with built-in error detection. Its dual-rail cavity qubits pair Quantum Error Detection (QED), Real-Time
  Control Flow (RTCF), and Error Detection Handling (EDH), and its Aqumen Seeker QPU (introduced November 2024) targets stable,
  repeatable, fault-tolerant quantum computation. The company engages early users through a Strategic Quantum Release (SQR)
  program that includes a simulator and access to Aqumen Seeker systems, rather than a public self-serve API. Surfaced as
  a portfolio company of Canaan Partners and added to the API Evangelist network.
url: https://raw.githubusercontent.com/api-evangelist/quantum-circuits/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- canaan-partners
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Quantum Computing
- Quantum Hardware
- Superconducting Qubits
- Error Correction
- Deep Tech
- Research
apis: []
common:
- type: Website
  url: https://quantumcircuits.com/
- type: Blog
  url: https://quantumcircuits.com/perspective/
- type: Support
  url: https://quantumcircuits.com/contact-us/
- type: TermsOfService
  url: https://quantumcircuits.com/terms-of-use/
- type: PrivacyPolicy
  url: https://quantumcircuits.com/privacy-policy/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 0
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