Heart Aerospace

Heart Aerospace is a hybrid-electric aircraft manufacturer founded in 2019 and headquartered in Torrance / Los Angeles, California, working to decarbonize and lower the cost of regional air travel. The company is developing the X1, a full-scale hybrid-electric technology demonstrator, and the ES-30, a 30-seat regional production aircraft, backed by strategic airline partners including United Airlines and Air Canada and investors such as Breakthrough Energy Ventures, Lowercarbon Capital, EQT Ventures, and Y Combinator. Heart Aerospace publishes no public developer or API surface; this profile tracks the company as an API Evangelist network entry in the sustainable-transport sector.

Heart Aerospace is profiled on the APIs.io network. Tagged areas include Company, Sustainable Transport, Aviation, Aerospace, and Electric Aircraft.

Heart Aerospace’s developer surface includes engineering blog, support, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

6.4/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

CompanySustainable TransportAviation Aerospace Electric AircraftRegional AviationClimate Tech

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 6.4/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 1.4 / 20

Access Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Contract Governance 0.0 / 12

Discoverability 5.0 / 10

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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/heart-aerospace: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

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

Heart Aerospace Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Company 5

The organization behind the API

Website

Blog

About

Careers

LinkedIn

Source (apis.yml)

aid: heart-aerospace
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
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/heart-aerospace.png
name: Heart Aerospace
description: Heart Aerospace is a hybrid-electric aircraft manufacturer founded in 2019 and headquartered in Torrance / Los
  Angeles, California, working to decarbonize and lower the cost of regional air travel. The company is developing the X1,
  a full-scale hybrid-electric technology demonstrator, and the ES-30, a 30-seat regional production aircraft, backed by strategic
  airline partners including United Airlines and Air Canada and investors such as Breakthrough Energy Ventures, Lowercarbon
  Capital, EQT Ventures, and Y Combinator. Heart Aerospace publishes no public developer or API surface; this profile tracks
  the company as an API Evangelist network entry in the sustainable-transport sector.
url: https://raw.githubusercontent.com/api-evangelist/heart-aerospace/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- eqt-ventures
x-tier: stub
x-tier-reason: portfolio-lead
x-api-surface: none
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Sustainable Transport
- Aviation
- Aerospace
- Electric Aircraft
- Regional Aviation
- Climate Tech
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/heart-aerospace-domain-security.yml
- type: Website
  url: https://heartaerospace.com/
- type: Blog
  url: https://heartaerospace.com/newsroom
- type: Support
  url: https://heartaerospace.com/contact
- type: About
  url: https://heartaerospace.com/company
- type: Careers
  url: https://heartaerospace.com/careers
- type: LinkedIn
  url: https://www.linkedin.com/company/heart-aerospace
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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