# Qphox

**Canonical:** https://apis.io/providers/qphox/  
**Website:** https://www.qphox.eu  
**APIs profiled:** 0

QphoX is a Delft, Netherlands-based quantum technology company founded in 2021 and spun out of Delft University of Technology (TU Delft). It develops quantum networking hardware to tackle the scaling challenges of quantum computing, centered on its Quantum Transducer, described as the first quantum interface between single optical and single microwave photons, enabling optical interconnects between superconducting quantum processors. Alongside the transducer, QphoX offers an Optical Control System for delivering RF signals into extreme cryogenic environments and a CryoSwitch Control Module for use with Radiall's cryogenic latching actuator. The company publishes open-source Python instrument-control libraries (QCoDeS drivers) on GitHub for operating its hardware. QphoX is backed by Speedinvest. QphoX exposes no public web API or developer portal.

## Kin Score — 5.3 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 5.3).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Qphox Domain Security** — TLSv1.3 · DMARC

## Tags

Company, Quantum Computing, Quantum Networking, Hardware, Photonics, Cryogenics, Deep Tech, Instrument Control

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/qphox/). Scores are computed from the provider's own public artifacts under a published rubric.