Tokamak Energy

Tokamak Energy is a private fusion energy company founded in 2009 as a spinout from the UK Atomic Energy Authority, headquartered at 173 Brook Drive, Milton Park, Oxfordshire OX14 4SD, with subsidiaries in the United States and Japan and more than 300 employees. It runs a two-track strategy: advancing commercial fusion energy through compact spherical tokamaks, and developing high temperature superconducting (HTS) magnet technology as a business in its own right. Its flagship device ST40 is the world's highest field spherical tokamak and is undergoing a USD 52 million upgrade co-funded with the US Department of Energy and the UK Department for Energy Security and Net Zero. Demo4 became the first HTS fusion magnet system to achieve fusion-relevant magnetic fields in 2025, and the company was selected as Magnet Systems Partner for the UK's STEP programme under a GBP 70 million contract running to 2029. The group is organised into three integrated businesses — TE Magnetics (HTS technology, established 2024), Ridgway Machines (manufacturing, acquired 2025) and Fusion. Tokamak Energy is a fusion and superconducting hardware company rather than a software vendor: it publishes no commercial or developer-facing product API, no developer portal, no SDKs and no OpenAPI of its own. The only machine-readable interface it exposes publicly is the WordPress REST content API behind its corporate website at tokamakenergy.com, which is anonymously readable, read-only for unauthenticated callers, and is captured here for discovery purposes. Its public engineering output is instead released as open-source plasma physics code — GSFit, RTGSFit and FORGE — through the tokamak-energy GitHub organisation.

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. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.

How we profile Tokamak Energy

Each block below is one kind of artifact we hold for Tokamak 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.

APIs 9

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

Tokamak Energy Posts API

Public, unauthenticated read access to the Tokamak Energy news archive behind tokamakenergy.com/latest-news/ via the WordPress core REST API. Verified live at 84 published posts...

Tokamak Energy Pages API

Public, unauthenticated read access to the static pages of tokamakenergy.com — About Us, Our Fusion Energy and HTS Technology, TE Magnetics, Careers, Early Careers, Current Vaca...

Tokamak Energy Media API

Public, unauthenticated read access to the Tokamak Energy media library — images, diagrams, PDFs and video assets attached to news posts and pages, including ST40, Demo4 and TE ...

Tokamak Energy Area Items API

Public, unauthenticated read access to the site-specific `area-item` custom post type behind tokamakenergy.com — the structured content blocks Tokamak Energy uses to compose its...

Tokamak Energy Taxonomy API

Public, unauthenticated read access to the classification terms Tokamak Energy applies to its news archive — the category taxonomy (8 terms live on 2026-08-30) and the post tag ...

Tokamak Energy Search API

Public, unauthenticated full-text search across every searchable object on tokamakenergy.com — posts, pages and the area-item custom type — returning a lightweight result envelo...

Tokamak Energy Authors API

Public, unauthenticated read access to the post authors of the Tokamak Energy news archive. Verified live at 4 authors on 2026-08-30. WordPress exposes only the public author vi...

Tokamak Energy Discovery API

The machine-readable description of the Tokamak Energy content API itself — the REST root document, the registered content types (including the site-specific `portfolio` and `ar...

Tokamak Energy oEmbed API

Public, unauthenticated oEmbed 1.0 provider endpoint for tokamakenergy.com. Given the URL of any Tokamak Energy post or page it returns an oEmbed rich/link response suitable for...

Scroll within the panel for all 9 ·

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.

Published pricing tiers and plan structures.

Tokamak Energy Plans Pricing

0 plans

PLANS

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Tokamak Energy Rate Limits

0 limits

RATE LIMITS

Examples 9

Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.

Example request and response payloads for these APIs.

Tokamak Energy Area Item Example

2 fields

EXAMPLE

Tokamak Energy Authors Example

2 fields

EXAMPLE

Tokamak Energy Categories Example

2 fields

EXAMPLE

Tokamak Energy Media Example

2 fields

EXAMPLE

Tokamak Energy Oembed Example

2 fields

EXAMPLE

Tokamak Energy Pages Example

2 fields

EXAMPLE

Tokamak Energy Posts Example

2 fields

EXAMPLE

Tokamak Energy Search Example

2 fields

EXAMPLE

Tokamak Energy Types Example

2 fields

EXAMPLE

Scroll within the panel for all 9 ·

Security Posture 2

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.

Tokamak Energy Authentication

http · 1 scheme

SECURITY

Tokamak Energy Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Every other property we hold for Tokamak 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.

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