Thermondo

Thermondo is Germany's largest residential heating installer, focused on heat pumps, photovoltaic (solar) systems, home energy management (thermondo smart), dynamic electricity tariffs, financing and subsidy assistance, and maintenance and repair services for homeowners. Founded in 2013 and headquartered in Berlin, the company employs over 1,200 staff and has completed installations for more than 55,000 customers. Thermondo is a consumer-facing climate-energy provider and a portfolio company of HV Capital. It publishes no public developer API or documentation surface; it does operate a security.txt vulnerability-disclosure program and a GitHub organization. This profile was added to the API Evangelist network from HV Capital's portfolio and enriched with the public security surface that could be verified.

Thermondo is profiled on the APIs.io network. Tagged areas include Company, Consumer; Climate Energy, Heat Pumps, Solar, and Home Energy.

🌐 Visit website 📡 Source on GitHub
8.8/100 minimal ▬ flat Agent 7/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyConsumer; Climate EnergyHeat PumpsSolarHome EnergyEnergy ManagementClimate Tech

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 8.8/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 2.1 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 7/100 · 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 4 / 4
Consent & Bot Identity 3 / 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/thermondo: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 2

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

Thermondo Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Thermondo Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 SecurityTxt
SecurityTxt
 VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: thermondo
name: Thermondo
description: Thermondo is Germany's largest residential heating installer, focused on heat pumps, photovoltaic (solar) systems,
  home energy management (thermondo smart), dynamic electricity tariffs, financing and subsidy assistance, and maintenance
  and repair services for homeowners. Founded in 2013 and headquartered in Berlin, the company employs over 1,200 staff and
  has completed installations for more than 55,000 customers. Thermondo is a consumer-facing climate-energy provider and a
  portfolio company of HV Capital. It publishes no public developer API or documentation surface; it does operate a security.txt
  vulnerability-disclosure program and a GitHub organization. This profile was added to the API Evangelist network from HV
  Capital's portfolio and enriched with the public security surface that could be verified.
url: https://raw.githubusercontent.com/api-evangelist/thermondo/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
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Consumer; Climate Energy
- Heat Pumps
- Solar
- Home Energy
- Energy Management
- Climate Tech
image: https://www.thermondo.de/favicon.ico
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/thermondo-domain-security.yml
- type: Website
  url: https://www.thermondo.de/
- type: SecurityTxt
  url: well-known/thermondo-security.txt
- type: VulnerabilityDisclosure
  url: security/thermondo-vulnerability-disclosure.yml
- type: Security
  url: https://github.com/thermondo/vulnerability-disclosure-policy
- type: WellKnown
  url: well-known/thermondo-well-known.yml
- type: GitHubOrganization
  url: https://github.com/thermondo
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 4
  pass: local-v1