Green Fusion

Green Fusion GmbH is a Berlin-based climate-energy software company that provides an intelligent 360-degree energy management platform for the residential real estate sector (Wohnungswirtschaft). Its software digitizes and optimizes building heating systems: "Der Energiespar-Pilot" delivers digital boiler-room management and optimized operation of conventional heat sources (gas, oil, district heating, CHP/BHKW), while its AI platform for sector coupling (Sektorkopplung) integrates heat pumps, PV systems, storage, and grid connectivity for intelligent monitoring and control. The platform is TUV-certified under GEG section 71a. Green Fusion is backed by HV Capital and surfaced in the API Evangelist network as a climate-energy provider; it operates a customer control platform (control.green-fusion.de) but publishes no public developer API at this time.

Green Fusion is profiled on the APIs.io network. Tagged areas include Company, Climate Energy, Energy Management, Heating, and Building Automation.

Green Fusion’s developer surface includes engineering blog, support, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

12.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyClimate EnergyEnergy ManagementHeatingBuilding AutomationSustainabilityGermanyIoT

Kin Score

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

Composite quality — 12.8/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 4.7 / 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/green-fusion: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 1

Portal, sign-up, and the first successful call

Login

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Source (apis.yml)

aid: green-fusion
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/green-fusion.png
name: Green Fusion
description: 'Green Fusion GmbH is a Berlin-based climate-energy software company that provides an intelligent 360-degree
  energy management platform for the residential real estate sector (Wohnungswirtschaft). Its software digitizes and optimizes
  building heating systems: "Der Energiespar-Pilot" delivers digital boiler-room management and optimized operation of conventional
  heat sources (gas, oil, district heating, CHP/BHKW), while its AI platform for sector coupling (Sektorkopplung) integrates
  heat pumps, PV systems, storage, and grid connectivity for intelligent monitoring and control. The platform is TUV-certified
  under GEG section 71a. Green Fusion is backed by HV Capital and surfaced in the API Evangelist network as a climate-energy
  provider; it operates a customer control platform (control.green-fusion.de) but publishes no public developer API at this
  time.'
url: https://raw.githubusercontent.com/api-evangelist/green-fusion/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- hv-capital
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Climate Energy
- Energy Management
- Heating
- Building Automation
- Sustainability
- Germany
- IoT
apis: []
common:
- type: DomainSecurity
  url: security/green-fusion-domain-security.yml
- type: Website
  url: https://green-fusion.de
- type: Login
  url: https://control.green-fusion.de/
- type: Blog
  url: https://green-fusion.de/aktuelles/news-blog
- type: Support
  url: https://green-fusion.de/uber-uns/kontakt
- type: PrivacyPolicy
  url: https://green-fusion.de/datenschutz
- type: LinkedIn
  url: https://www.linkedin.com/company/green-fusion-gmbh/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence