Whisper Aero

Whisper Aero is a Crossville, Tennessee based aerospace company developing ultra-quiet electric ducted-fan propulsion that converts electricity into thrust with roughly 20 percent more efficiency and 20 dB less noise than conventional systems, scaling from 5 to 500 pounds of thrust and 40 to 400 knots for aviation, defense, and commercial applications. Backed by Kindred Ventures, Lux Capital, and Menlo Ventures. The company is a hardware manufacturer and, as of this enrichment pass, publishes no public developer API, portal, or documentation surface.

Whisper Aero is profiled on the APIs.io network. Tagged areas include Company, Mobility Logistics, Aerospace, Electric Propulsion, and Aviation.

Whisper Aero’s developer surface includes engineering blog and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub
11.4/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyMobility LogisticsAerospaceElectric PropulsionAviationDefenseManufacturingCleantech

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 11.4/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 4.2 / 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/whisper-aero: 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 1

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

Whisper Aero Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy
 TermsOfService
TermsOfService

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: whisper-aero
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/whisper-aero.png
name: Whisper Aero
description: Whisper Aero is a Crossville, Tennessee based aerospace company developing ultra-quiet electric ducted-fan propulsion
  that converts electricity into thrust with roughly 20 percent more efficiency and 20 dB less noise than conventional systems,
  scaling from 5 to 500 pounds of thrust and 40 to 400 knots for aviation, defense, and commercial applications. Backed by
  Kindred Ventures, Lux Capital, and Menlo Ventures. The company is a hardware manufacturer and, as of this enrichment pass,
  publishes no public developer API, portal, or documentation surface.
url: https://raw.githubusercontent.com/api-evangelist/whisper-aero/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- kindred-ventures
- lux-capital
- menlo-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Mobility Logistics
- Aerospace
- Electric Propulsion
- Aviation
- Defense
- Manufacturing
- Cleantech
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/whisper-aero-domain-security.yml
- type: Website
  url: https://www.whisper.aero/
- type: Blog
  url: https://www.whisper.aero/news
- type: PrivacyPolicy
  url: https://www.whisper.aero/legal/privacy-policy
- type: TermsOfService
  url: https://www.whisper.aero/legal/terms-and-conditions
x-enrichment:
  date: '2026-07-21'
  status: minimal
  artifacts_added: 1
  pass: local-v1