Icarus website screenshot

Icarus

Icarus is an aerospace and defense company building autonomous, solar-powered stratospheric aircraft for persistent surveillance and connectivity. Its APOLLO platform operates continuously above 60,000 feet, delivering rapid aerial intelligence, wide-area coverage across 1,000+ square miles, and always-on, low-latency (5-10ms) direct-to-device communications for weeks-long missions without ground infrastructure. Founded in 2023 and based in El Segundo, California, Icarus was part of Y Combinator's Fall 2025 batch. The company operates in the defense/aerospace hardware space and does not currently publish any public API, developer portal, SDK, or technical developer surface; this profile captures its identity for the API Evangelist network.

Icarus is profiled on the APIs.io network. Tagged areas include Company, Aerospace, Defense, Surveillance, and Connectivity.

🌐 Visit website 📡 Source on GitHub
6.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyAerospaceDefenseSurveillanceConnectivityStratosphericAutonomous AircraftSolar Power

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 6.8/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 0.0 / 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/icarus: 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.

Icarus Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: icarus
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/icarus.png
name: Icarus
description: Icarus is an aerospace and defense company building autonomous, solar-powered stratospheric aircraft for persistent
  surveillance and connectivity. Its APOLLO platform operates continuously above 60,000 feet, delivering rapid aerial intelligence,
  wide-area coverage across 1,000+ square miles, and always-on, low-latency (5-10ms) direct-to-device communications for weeks-long
  missions without ground infrastructure. Founded in 2023 and based in El Segundo, California, Icarus was part of Y Combinator's
  Fall 2025 batch. The company operates in the defense/aerospace hardware space and does not currently publish any public
  API, developer portal, SDK, or technical developer surface; this profile captures its identity for the API Evangelist network.
url: https://raw.githubusercontent.com/api-evangelist/icarus/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-yc-batch: Fall 2025
x-founded: '2023'
x-headquarters: El Segundo, CA
x-founder: Henry Kwan
x-tier: stub
x-tier-reason: portfolio-lead
x-enrichment-note: No public API, developer portal, SDK, or MCP surface found (defense/aerospace hardware company). Identity
  enriched from icarus.one and Y Combinator; domain security probed.
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Aerospace
- Defense
- Surveillance
- Connectivity
- Stratospheric
- Autonomous Aircraft
- Solar Power
apis: []
common:
- type: DomainSecurity
  url: security/icarus-domain-security.yml
- type: Website
  url: https://www.icarus.one/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence