Elroy Air website screenshot

Elroy Air

Elroy Air develops autonomous vertical takeoff and landing (VTOL) cargo aircraft for defense, commercial, and rapid-response logistics. Its flagship Chaparral is a hybrid-electric aircraft designed to carry up to 300 pounds of cargo across roughly 300 miles with no crew onboard, taking off and landing vertically and cruising autonomously between points. Founded in 2016 and based in San Francisco, the company works with partners including FedEx, NASA, the U.S. Air Force, and Lockheed Martin, and was selected for the U.S. Department of Transportation eVTOL Integration Pilot Program. Elroy Air is a hardware and autonomy company; it does not currently publish a public developer API, OpenAPI, SDKs, or MCP surface. This profile was added to the API Evangelist network as a portfolio lead and enriched with identity and domain-security data.

Elroy Air is profiled on the APIs.io network. Tagged areas include Company, Aerospace Defense, Autonomous Aircraft, Cargo Delivery, and VTOL.

Elroy Air’s developer surface includes engineering blog, support, YouTube channel, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
13.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyAerospace DefenseAutonomous AircraftCargo DeliveryVTOLDronesLogisticsDefense

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 13.0/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 0.7 / 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/elroy-air: 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.

Elroy Air Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Resources

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube
YouTube

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 4

The organization behind the API

Website
Website
 About
About
 Blog
Blog
 LinkedIn
LinkedIn

Source (apis.yml)

apis.yml Raw ↑ 
aid: elroy-air
name: Elroy Air
description: Elroy Air develops autonomous vertical takeoff and landing (VTOL) cargo aircraft for defense, commercial, and
  rapid-response logistics. Its flagship Chaparral is a hybrid-electric aircraft designed to carry up to 300 pounds of cargo
  across roughly 300 miles with no crew onboard, taking off and landing vertically and cruising autonomously between points.
  Founded in 2016 and based in San Francisco, the company works with partners including FedEx, NASA, the U.S. Air Force, and
  Lockheed Martin, and was selected for the U.S. Department of Transportation eVTOL Integration Pilot Program. Elroy Air is
  a hardware and autonomy company; it does not currently publish a public developer API, OpenAPI, SDKs, or MCP surface. This
  profile was added to the API Evangelist network as a portfolio lead and enriched with identity and domain-security data.
url: https://raw.githubusercontent.com/api-evangelist/elroy-air/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- homebrew
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: '2026-07-19'
image: https://elroyair.com/images/seo/EA_Home_Social-SW.jpg
tags:
- Company
- Aerospace Defense
- Autonomous Aircraft
- Cargo Delivery
- VTOL
- Drones
- Logistics
- Defense
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://elroyair.com
- type: About
  url: https://elroyair.com/company/about-us
- type: Blog
  url: https://elroyair.medium.com/
- type: Support
  url: https://elroyair.com/contact-us
- type: TermsOfService
  url: https://elroyair.com/terms-of-use
- type: PrivacyPolicy
  url: https://elroyair.com/privacy-policy
- type: GitHubOrganization
  url: https://github.com/elroyair
- type: LinkedIn
  url: https://www.linkedin.com/company/elroy-air
- type: YouTube
  url: https://www.youtube.com/@elroyair
- type: DomainSecurity
  url: security/elroy-air-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence