Mainspring Energy website screenshot

Mainspring Energy

Mainspring Energy is a Menlo Park, California power-infrastructure company that designs, manufactures, and deploys the Linear Generator, a modular, fuel-flexible onsite power generation system. Its technology delivers firm, dispatchable, and low-emission electricity for data centers, utilities, and industrial and enterprise facilities, running today on natural gas and biogas with a seamless transition to zero-carbon fuels such as hydrogen and ammonia. Backed by Khosla Ventures and other investors, Mainspring has more than one gigawatt of Linear Generator capacity in late-stage development and operation. Mainspring is a hardware and power-systems company and does not currently publish a public developer API, SDK, or developer portal; this profile captures its corporate, security, and compliance surface.

Mainspring Energy is profiled on the APIs.io network. Tagged areas include Company, Energy, Power Generation, Clean Energy, and Distributed Energy.

Mainspring Energy’s developer surface includes engineering blog and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
14.6/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyEnergyPower GenerationClean EnergyDistributed EnergyData CentersHardwareClimate

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 14.6/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 7.4 / 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/mainspringenergy: 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.

Mainspringenergy Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Mainspringenergy Trust Center

SOC 2, ISO 27001

SECURITY

Resources

Access & Security 3

Authentication, authorization, and security posture

TrustCenter
TrustCenter
 Compliance
Compliance
 DomainSecurity
DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy
 TermsOfService
TermsOfService

Company 3

The organization behind the API

Website
Website
 Blog
Blog
 LinkedIn
LinkedIn

Source (apis.yml)

apis.yml Raw ↑ 
aid: mainspringenergy
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/mainspringenergy.png
name: Mainspring Energy
description: Mainspring Energy is a Menlo Park, California power-infrastructure company that designs, manufactures, and deploys
  the Linear Generator, a modular, fuel-flexible onsite power generation system. Its technology delivers firm, dispatchable,
  and low-emission electricity for data centers, utilities, and industrial and enterprise facilities, running today on natural
  gas and biogas with a seamless transition to zero-carbon fuels such as hydrogen and ammonia. Backed by Khosla Ventures and
  other investors, Mainspring has more than one gigawatt of Linear Generator capacity in late-stage development and operation.
  Mainspring is a hardware and power-systems company and does not currently publish a public developer API, SDK, or developer
  portal; this profile captures its corporate, security, and compliance surface.
url: https://raw.githubusercontent.com/api-evangelist/mainspringenergy/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- khosla-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Energy
- Power Generation
- Clean Energy
- Distributed Energy
- Data Centers
- Hardware
- Climate
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.mainspringenergy.com/
- type: TrustCenter
  url: security/mainspringenergy-trust-center.yml
- type: Compliance
  url: https://app.drata.com/trust/cd627a7d-b3f0-496c-81b8-b3c69cde90da
- type: DomainSecurity
  url: security/mainspringenergy-domain-security.yml
- type: PrivacyPolicy
  url: https://www.mainspringenergy.com/privacy-policy
- type: TermsOfService
  url: https://www.mainspringenergy.com/terms-of-use
- type: Blog
  url: https://www.mainspringenergy.com/news-perspectives
- type: LinkedIn
  url: https://www.linkedin.com/company/mainspringenergy
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 0
  pass: local-v1