# X-energy

**Canonical:** https://apis.io/providers/x-energy/  
**Website:** https://x-energy.com  
**APIs profiled:** 0

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.

## Kin Score — 3.8 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 3.8).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 2.4 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Energy & Utilities**: 8.1 (matched via tags).

## 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)

- **X Energy Domain Security** — TLSv1.3 · DMARC

## 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

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