X-energy

X-energy is an advanced nuclear reactor and fuel company headquartered in Rockville, Maryland, founded in 2009 by Dr. Kam Ghaffarian. The company's flagship product is the Xe-100, an 80 MWe (320 MWe four-pack) high-temperature gas-cooled small modular reactor (SMR) using helium coolant and TRISO-X pebble fuel, designed to deliver both electricity and high-temperature process steam to industrial customers. X-energy's fuel subsidiary, TRISO-X, is building a commercial TRISO fuel fabrication facility in Oak Ridge, Tennessee. Project pipeline includes a four-unit Xe-100 plant for Dow Chemical at Seadrift, Texas (NRC environmental assessment completed May 2026, the first US advanced reactor environmental review to be completed), a 12-unit Xe-100 deployment with Energy Northwest at the Tri-Cities, Washington site, a collaboration with Amazon Web Services for data-center power, a feasibility study with LG&E and KU in Kentucky, work with Ontario Power Generation in Canada, and selection under the US Department of Energy's Advanced Reactor Demonstration Program (ARDP). X-energy is led by CEO J. Clay Sell and Chairman/founder Dr. Kam Ghaffarian. Investors include Amazon (Climate Pledge Fund), Ares Management, Citadel, Segra Capital Management, Jane Street, Ken Griffin, the University of Michigan, and others. X-energy completed an upsized IPO on Nasdaq in April 2026. The company does not publish a public developer API or SDK.

X-energy is profiled on the APIs.io network. Tagged areas include Nuclear Energy, Small Modular Reactor, SMR, High-Temperature Gas Reactor, and HTGR.

X-energy’s developer surface includes product news, engineering blog, YouTube channel, and 14 more developer resources.

🌐 Visit website 📡 Source on GitHub

7.2/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

Nuclear EnergySmall Modular ReactorSMRHigh-Temperature Gas ReactorHTGRXe-100TRISO FuelTRISO-XAdvanced ReactorClean EnergyProcess HeatIndustrial Decarbonization

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 7.2/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.4 / 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/x-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 →

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 1

Status, limits, changes, and where to get help

Contact

Contact

Company 9

The organization behind the API

Website

Careers

News

Blog

InvestorRelations

InvestorRelations

LinkedIn

Twitter

Twitter

Facebook

Facebook

Instagram

Instagram

Scroll for all 9

Other 5

Properties that don't map to a standard resource type

Xe100

TRISOXFuel

Mission

Leadership

TikTok

Source (apis.yml)

aid: x-energy
name: X-energy
description: X-energy is an advanced nuclear reactor and fuel company headquartered in Rockville, Maryland, founded in 2009
  by Dr. Kam Ghaffarian. The company's flagship product is the Xe-100, an 80 MWe (320 MWe four-pack) high-temperature gas-cooled
  small modular reactor (SMR) using helium coolant and TRISO-X pebble fuel, designed to deliver both electricity and high-temperature
  process steam to industrial customers. X-energy's fuel subsidiary, TRISO-X, is building a commercial TRISO fuel fabrication
  facility in Oak Ridge, Tennessee. Project pipeline includes a four-unit Xe-100 plant for Dow Chemical at Seadrift, Texas
  (NRC environmental assessment completed May 2026, the first US advanced reactor environmental review to be completed), a
  12-unit Xe-100 deployment with Energy Northwest at the Tri-Cities, Washington site, a collaboration with Amazon Web Services
  for data-center power, a feasibility study with LG&E and KU in Kentucky, work with Ontario Power Generation in Canada, and
  selection under the US Department of Energy's Advanced Reactor Demonstration Program (ARDP). X-energy is led by CEO J. Clay
  Sell and Chairman/founder Dr. Kam Ghaffarian. Investors include Amazon (Climate Pledge Fund), Ares Management, Citadel,
  Segra Capital Management, Jane Street, Ken Griffin, the University of Michigan, and others. X-energy completed an upsized
  IPO on Nasdaq in April 2026. The company does not publish a public developer API or SDK.
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Provider
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/x-energy.png
tags:
- Nuclear Energy
- Small Modular Reactor
- SMR
- High-Temperature Gas Reactor
- HTGR
- Xe-100
- TRISO Fuel
- TRISO-X
- Advanced Reactor
- Clean Energy
- Process Heat
- Industrial Decarbonization
url: https://raw.githubusercontent.com/api-evangelist/x-energy/refs/heads/main/apis.yml
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.20'
apis: []
common:
- type: DomainSecurity
  url: security/x-energy-domain-security.yml
- type: Website
  url: https://x-energy.com
- type: Xe100
  url: https://x-energy.com/xe-100/
- type: TRISOXFuel
  url: https://x-energy.com/triso-x-fuel/
- type: Mission
  url: https://x-energy.com/our-mission/
- type: Leadership
  url: https://x-energy.com/leadership/
- type: Careers
  url: https://x-energy.com/careers/
- type: News
  url: https://x-energy.com/news/
- type: Blog
  url: https://x-energy.com/blog/
- type: Contact
  url: https://x-energy.com/contact/
- type: InvestorRelations
  url: https://investors.x-energy.com
- type: LinkedIn
  url: https://www.linkedin.com/company/x-energy-llc
- type: Twitter
  url: https://twitter.com/x_energy_nuclear
- type: Facebook
  url: https://www.facebook.com/xenergynuclear
- type: YouTube
  url: https://www.youtube.com/@xenergyllc
- type: Instagram
  url: https://www.instagram.com/x_energy_nuclear
- type: TikTok
  url: https://www.tiktok.com/@x_energy_nuclear
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com