Radiant

Radiant is a nuclear technology company developing portable, transportable microreactors designed to deliver clean, reliable power to remote sites, military installations, disaster-relief operations, and industrial locations that today depend on diesel generators. Its flagship Kaleidos reactor is a factory-built, containerized ~1 MW microreactor intended to ship by truck, plane, or ship and be operational quickly on-site. Founded by former SpaceX engineers and headquartered in El Segundo, California, Radiant is backed by DCVC and Union Square Ventures. As of this enrichment pass the company publishes a corporate and careers web presence but no public developer program, API, SDK, or technical documentation surface.

Radiant is profiled on the APIs.io network. Tagged areas include Company, Nuclear, Energy, Microreactor, and Clean Energy.

🌐 Visit website 📡 Source on GitHub
3.3/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
0 APIs
CompanyNuclearEnergyMicroreactorClean EnergyPower GenerationHardware

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 3.3/100 · minimal
Contract Quality 0.0 / 21
Developer Ergonomics 0.0 / 17
Access Clarity 0.0 / 17
Operational Transparency 0.0 / 11
Contract Governance 0.0 / 10
Discoverability 4.3 / 9
Regulatory Posture 1.2 / 15
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
Regulatory Posture applies to this provider. Its tags matched the Energy & Utilities regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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/. This rating is computed from github.com/api-evangelist/radiant: 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.

Radiant Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: radiant
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/radiant.png
name: Radiant
description: Radiant is a nuclear technology company developing portable, transportable microreactors designed to deliver
  clean, reliable power to remote sites, military installations, disaster-relief operations, and industrial locations that
  today depend on diesel generators. Its flagship Kaleidos reactor is a factory-built, containerized ~1 MW microreactor intended
  to ship by truck, plane, or ship and be operational quickly on-site. Founded by former SpaceX engineers and headquartered
  in El Segundo, California, Radiant is backed by DCVC and Union Square Ventures. As of this enrichment pass the company publishes
  a corporate and careers web presence but no public developer program, API, SDK, or technical documentation surface.
url: https://raw.githubusercontent.com/api-evangelist/radiant/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- dcvc
- union-square-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Nuclear
- Energy
- Microreactor
- Clean Energy
- Power Generation
- Hardware
apis: []
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: 1
  pass: local-v1
common:
- type: DomainSecurity
  url: security/radiant-domain-security.yml
- type: Website
  url: https://www.radiantnuclear.com