Quintessent

Quintessent is a Goleta, California deep-tech photonics company developing quantum dot laser and optical interconnect technology to scale computing and AI infrastructure. The company builds quantum dot epitaxial wafer supply chains (in partnership with IQE) and optical connectivity solutions for AI optical interconnects, targeting the bandwidth and energy-efficiency bottlenecks of next-generation data centers. Backed by Sierra Ventures, Quintessent is a hardware and semiconductor company; as of this profile it publishes no public API, developer portal, SDKs, or machine-readable API documentation.

Quintessent is profiled on the APIs.io network. Tagged areas include Company, Deep Tech, Photonics, Semiconductors, and Optical Interconnects.

Quintessent’s developer surface includes engineering blog, support, and 3 more developer resources.

🌐 Visit website 📡 Source on GitHub
8.1/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyDeep TechPhotonicsSemiconductorsOptical InterconnectsQuantum DotAI InfrastructureHardware

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 8.1/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 0.0 / 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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/quintessent: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

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

Quintessent Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support
Support

Company 3

The organization behind the API

Website
Website
 About
About
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: quintessent
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/quintessent.png
name: Quintessent
description: Quintessent is a Goleta, California deep-tech photonics company developing quantum dot laser and optical interconnect
  technology to scale computing and AI infrastructure. The company builds quantum dot epitaxial wafer supply chains (in partnership
  with IQE) and optical connectivity solutions for AI optical interconnects, targeting the bandwidth and energy-efficiency
  bottlenecks of next-generation data centers. Backed by Sierra Ventures, Quintessent is a hardware and semiconductor company;
  as of this profile it publishes no public API, developer portal, SDKs, or machine-readable API documentation.
url: https://raw.githubusercontent.com/api-evangelist/quintessent/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- sierra-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Deep Tech
- Photonics
- Semiconductors
- Optical Interconnects
- Quantum Dot
- AI Infrastructure
- Hardware
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/quintessent-domain-security.yml
- type: Website
  url: https://quintessent.com/
- type: About
  url: https://quintessent.com/about
- type: Blog
  url: https://quintessent.com/news
- type: Support
  url: https://quintessent.com/contact
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 1
  pass: local-v1