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, support, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

14.7/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

0 APIs

CompanyEnergyPower GenerationClean EnergyDistributed EnergyData CentersHardwareClimate

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 14.7/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 6.3 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.3 / 9

Regulatory Posture 3.9 / 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

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/. 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 →

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

Compliance

Compliance

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

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

Source (apis.yml)

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: '0.23'
created: '2026-07-17'
modified: '2026-08-08'
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
- type: Support
  url: https://www.mainspringenergy.com/contact
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 0
  pass: local-v1
x-merged-from:
- mainspring-energy

Mainspring Energy

Kin Score

Security Posture 2

Mainspringenergy Domain Security

Mainspringenergy Trust Center

Resources

Access & Security 3

Operate 1

Commercial 2

Company 3

Source (apis.yml)