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Helion Energy

Helion Energy is a fusion energy company headquartered in Everett, Washington pursuing a pulsed, magneto-inertial field-reversed-configuration (FRC) approach that uses a deuterium-helium-3 fuel cycle and direct electricity recovery rather than steam turbines. The company is on its seventh-generation prototype, Polaris, which achieved first plasma in 2024 and is targeted to demonstrate net electricity production from fusion. Helion's prior machines include Trenta, the sixth-generation prototype that reached fusion-relevant plasma temperatures, and Hercules, an earlier device. Orion is Helion's planned first commercial fusion power plant, with a publicly announced 2028 target for delivering electricity to Microsoft under what the companies describe as the world's first commercial fusion power purchase agreement; a second customer agreement is in place with steelmaker Nucor. Helion is led by co-founder and CEO David Kirtley, CTO Chris Pihl, Chief Scientist George Votroubek, and co-founder Anthony Pancotti. Investors include Sam Altman (chair), Dustin Moskovitz, Reid Hoffman, SoftBank Vision Fund 2, Mithril Capital, Capricorn Investment Group, Peter Thiel, and others. Helion does not publish a public developer API or SDK.

human only

Index entry only — little beyond a description and a link, and nothing machine-readable enough for an agent to act on without a human reading the site first.

Kin Score

API Evangelist profiles Helion Energy the way a machine reads it — 1 machine-readable artifact, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Helion Energy scores 7.2/100 (minimal), with a separate agent-readiness read of 0/100 (human only). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

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

How we profile Helion Energy

Each block below is one kind of artifact we hold for Helion Energy. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

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

Helion Energy Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Every other property we hold for Helion Energy — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Access & Security 1

Authentication, authorization, and security posture

Learn 1

Tutorials, courses, talks, and written guidance

Operate 2

Status, limits, changes, and where to get help

Other 5

Properties that don't map to a standard resource type

← All providers · Data indexed from github.com/api-evangelist/helion-energy · machine-readable index on apis.io