Sunfire

Sunfire SE is a German hydrogen technology manufacturer headquartered in Dresden, Saxony, with additional sites in Berlin and Solingen. Founded in 2010 by Carl Berninghausen, Christian von Olshausen and Nils Aldag, and converted to a European stock corporation (SE) in 2025, the company builds industrial-scale electrolyzers and power-to-X plants that convert renewable electricity into green hydrogen and synthetic fuels. Its Sunfire-HyLink portfolio spans pressurized alkaline electrolysis (HyLink Alkaline 22 at 10 MW and HyLink Alkaline 23 at 50 MW per module, operating at 30 bar(g)) and high-temperature solid oxide electrolysis (HyLink SOEC, 10 MW modules, a claimed world-record 37.5 kWh/kg H2 efficiency), alongside FEED engineering, project delivery, maintenance and remote data-driven monitoring services. Customers and projects include RWE, Salzgitter, Neste, TotalEnergies, BASF, P2X Solutions, Nordic Ren-Gas and the Bad Lauchstaedt Energy Park. Sunfire is an industrial equipment manufacturer: it publishes no developer program, public API, SDK or machine-readable API contract of any kind.

Sunfire is profiled on the APIs.io network. Tagged areas include Company, Energy, Green Hydrogen, Electrolysis, and Power-to-X.

Sunfire’s developer surface includes engineering blog and 13 more developer resources.

🌐 Visit website 📡 Source on GitHub

10.4/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-09-02 · rubric v0.18.0

0 APIs

Company Energy Green HydrogenElectrolysisPower-to-XRenewable Energy Industrial ManufacturingHydrogen TechnologySynthetic Fuels Germany

Kin Score

Kin Score How this is scored →
scored 2026-09-02 · rubric v0.18.0

Composite quality — 10.4/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.4 / 17

Access Clarity 3.6 / 17

Operational Transparency 0.0 / 11

Contract 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

Documented Reversibility 0 / 6

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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

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/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/sunfire: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Contact

Contact

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 5

The organization behind the API

Website

About

Blog

Careers

LinkedIn

Other 4

Properties that don't map to a standard resource type

Products

Products

MediaCenter

MediaCenter

Imprint

Imprint

SecondaryMarketListing

SecondaryMarketListing

Source (apis.yml)

aid: sunfire
name: Sunfire
description: 'Sunfire SE is a German hydrogen technology manufacturer headquartered in Dresden, Saxony, with additional sites
  in Berlin and Solingen. Founded in 2010 by Carl Berninghausen, Christian von Olshausen and Nils Aldag, and converted to
  a European stock corporation (SE) in 2025, the company builds industrial-scale electrolyzers and power-to-X plants that
  convert renewable electricity into green hydrogen and synthetic fuels. Its Sunfire-HyLink portfolio spans pressurized alkaline
  electrolysis (HyLink Alkaline 22 at 10 MW and HyLink Alkaline 23 at 50 MW per module, operating at 30 bar(g)) and high-temperature
  solid oxide electrolysis (HyLink SOEC, 10 MW modules, a claimed world-record 37.5 kWh/kg H2 efficiency), alongside FEED
  engineering, project delivery, maintenance and remote data-driven monitoring services. Customers and projects include RWE,
  Salzgitter, Neste, TotalEnergies, BASF, P2X Solutions, Nordic Ren-Gas and the Bad Lauchstaedt Energy Park. Sunfire is an
  industrial equipment manufacturer: it publishes no developer program, public API, SDK or machine-readable API contract of
  any kind.'
url: https://raw.githubusercontent.com/api-evangelist/sunfire/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-09-02'
  method: derived
image: https://sunfire.de/logo.png
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment-pass
specificationVersion: '0.20'
created: '2026-08-29'
modified: '2026-08-29'
tags:
- Company
- Energy
- Green Hydrogen
- Electrolysis
- Power-to-X
- Renewable Energy
- Industrial Manufacturing
- Hydrogen Technology
- Synthetic Fuels
- Germany
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/sunfire-domain-security.yml
- type: Website
  url: https://sunfire.de/en/
- type: About
  url: https://sunfire.de/en/about/
- type: Products
  url: https://sunfire.de/en/products/portfolio/
- type: Blog
  url: https://sunfire.de/en/newsroom/
- type: MediaCenter
  url: https://sunfire.de/en/newsroom/media-center/
- type: Contact
  url: https://sunfire.de/en/contact/
- type: Careers
  url: https://sunfire.de/en/career/
- type: PrivacyPolicy
  url: https://sunfire.de/en/privacy/
- type: TermsOfService
  url: https://sunfire.de/en/general-conditions-of-delivery-and-purchase/
- type: Imprint
  url: https://sunfire.de/en/imprint/
- type: LinkedIn
  url: https://www.linkedin.com/company/sunfire-gmbh/
- type: SecondaryMarketListing
  url: https://www.hiive.com/securities/sunfire-stock
- type: LLMsTxt
  url: llms/sunfire-llms.txt
x-enrichment:
  date: '2026-08-29'
  status: minimal
  artifacts_added: 3
  pass: local-v1
x-coverage:
  state: none
  reason: not-a-software-company
  detail: Sunfire SE manufactures physical electrolyzer plant (HyLink Alkaline and HyLink SOEC modules) and sells it through
    a product-enquiry form; the site has 341 sitemap URLs and not one of them is a developer, docs or API page, and api./developer./docs./portal./status.sunfire.de
    do not resolve in DNS.
  evidence:
  - url: https://sunfire.de/openapi.json
    status: 404
  - url: https://sunfire.de/.well-known/api-catalog
    status: 404
  - url: https://sunfire.de/llms.txt
    status: 404
  - url: https://sunfire.de/en/products/service/
    status: 200
  - url: https://www.sunfire.de/sitemap.xml
    status: 200
  checked: '2026-08-29'

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