Thea Energy

Thea Energy, Inc. is a fusion energy company headquartered in Kearny, New Jersey, founded in 2022 on stellarator physics and engineering developed at Princeton University and the Princeton Plasma Physics Laboratory. Thea is reinventing the stellarator by replacing complex, hand-wound 3D modular coils with a phased array of simple planar electromagnetic coils, moving the complexity of shaping the magnetic field out of the hardware and into a software control stack that can be tuned over an asset's lifetime. Its first integrated machine, Eos, is a steady-state, neutron-producing stellarator; the follow-on Helios is intended to be an electricity-producing plant. The company raised a $100M Series B in May 2026 led by Thomas Tull's US Innovative Technology Fund, and the U.S. Department of Energy has certified its power plant preconceptual design milestone. Thea publishes no public API, developer portal, or machine-readable contract; its only public software surface is a small set of open-source nuclear-engineering and simulation libraries on GitHub.

Thea Energy is profiled on the APIs.io network. Tagged areas include Company, Energy, Fusion Energy, Nuclear Fusion, and Stellarator.

Thea Energy’s developer surface includes engineering blog and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub
12.3/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
0 APIs
CompanyEnergyFusion EnergyNuclear FusionStellaratorClean EnergyScientific ComputingSimulationOpen SourceDeep TechNew Jersey

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 12.3/100 · minimal
Contract Quality 0.0 / 21
Developer Ergonomics 0.4 / 17
Commercial Clarity 3.6 / 17
Operational Transparency 0.6 / 11
Governance 0.0 / 10
Discoverability 4.9 / 9
Regulatory Posture 2.8 / 15
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
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/thea-energy: 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.

Thea Energy Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Contact
Contact
 PressReleases
PressReleases

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 9

The organization behind the API

Website
Website
 About
About
 Careers
Careers
 Blog
Blog
 BlogFeeds
BlogFeeds
 Partners
Partners
 Twitter
Twitter
 LinkedIn
LinkedIn
 Investors
Investors

Scroll for all 9

Other 3

Properties that don't map to a standard resource type

Team
Team
 Research
Research
 OpenSource
OpenSource

Source (apis.yml)

apis.yml Raw ↑ 
aid: thea-energy
name: Thea Energy
description: Thea Energy, Inc. is a fusion energy company headquartered in Kearny, New Jersey, founded in 2022 on stellarator
  physics and engineering developed at Princeton University and the Princeton Plasma Physics Laboratory. Thea is reinventing
  the stellarator by replacing complex, hand-wound 3D modular coils with a phased array of simple planar electromagnetic coils,
  moving the complexity of shaping the magnetic field out of the hardware and into a software control stack that can be tuned
  over an asset's lifetime. Its first integrated machine, Eos, is a steady-state, neutron-producing stellarator; the follow-on
  Helios is intended to be an electricity-producing plant. The company raised a $100M Series B in May 2026 led by Thomas Tull's
  US Innovative Technology Fund, and the U.S. Department of Energy has certified its power plant preconceptual design milestone.
  Thea publishes no public API, developer portal, or machine-readable contract; its only public software surface is a small
  set of open-source nuclear-engineering and simulation libraries on GitHub.
image: https://thea.energy/wp-content/uploads/2023/04/cropped-favicon-192x192.png
url: https://raw.githubusercontent.com/api-evangelist/thea-energy/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profile
x-tier-reason: no-api-surface
specificationVersion: '0.20'
created: '2026-08-05'
modified: '2026-08-05'
tags:
- Company
- Energy
- Fusion Energy
- Nuclear Fusion
- Stellarator
- Clean Energy
- Scientific Computing
- Simulation
- Open Source
- Deep Tech
- New Jersey
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/thea-energy-domain-security.yml
- type: Website
  url: https://thea.energy/
- type: About
  url: https://thea.energy/about-us/
- type: Team
  url: https://thea.energy/about-us/
- type: Careers
  url: https://thea.energy/careers/
- type: Contact
  url: https://thea.energy/contact-us/
- type: Blog
  url: https://thea.energy/media-press/
- type: BlogFeeds
  url: https://thea.energy/feed/
- type: PressReleases
  url: https://thea.energy/press-release/
- type: Research
  url: https://thea.energy/presentations-and-publications/
- type: Partners
  url: https://thea.energy/partnerships/
- type: GitHubOrganization
  url: https://github.com/Thea-Energy
- type: OpenSource
  url: https://github.com/Thea-Energy
- type: TermsOfService
  url: https://thea.energy/terms-conditions/
- type: PrivacyPolicy
  url: https://thea.energy/privacy-policy/
- type: Twitter
  url: https://twitter.com/TheaEnergy
- type: LinkedIn
  url: https://www.linkedin.com/company/thea
- type: Investors
  url: https://forgeglobal.com/thea-energy_stock/
- type: Packages
  url: packages/thea-energy-packages.yml
- type: LLMsTxt
  url: llms/thea-energy-llms.txt
x-enrichment:
  date: '2026-08-05'
  status: minimal
  artifacts_added: 3
  pass: local-v1
x-coverage:
  state: none
  reason: not-a-software-company
  detail: Thea Energy builds fusion power plant hardware — planar-coil stellarator magnets and the Eos machine — and its control
    software is internal to the device, so there is nothing to expose as an API; thea.energy is a WordPress marketing site
    with no /developers, no /api, and no api./docs./developer. subdomain in DNS at all.
  evidence:
  - url: https://thea.energy/developers
    status: 404
  - url: https://thea.energy/openapi.json
    status: 404
  - url: https://thea.energy/llms.txt
    status: 404
  - url: https://thea.energy/.well-known/agent-card.json
    status: 404
  - url: https://api.thea.energy/openapi.json
    status: 0
  checked: '2026-08-05'