CesiumAstro website screenshot

CesiumAstro

CesiumAstro designs, manufactures, and tests full-stack communication systems and satellites for space, air, and ground missions. The Austin, Texas company, founded in 2017, builds active phased array payloads (Vireo), software-defined radios (SDR-1001/2051/2104/3104), reconfigurable processing units, SATCOM terminals (Skylark), tactical ISR/PNT payloads (Nightingale), and the integrated Element LEO satellite platform. Its hardware enables inter-satellite links, high-speed downlinks, lunar communications, and 5G non-terrestrial networks. CesiumAstro publishes no public developer API, SDK, or documentation portal; this profile tracks the company as an aerospace hardware provider in the API Evangelist network.

CesiumAstro is profiled on the APIs.io network. Tagged areas include Company, Hardtech, Aerospace, Satellite, and Communications.

CesiumAstro’s developer surface includes engineering blog, support, and 5 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
CompanyHardtechAerospaceSatelliteCommunicationsPhased ArraySoftware-Defined RadioSpace

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/cesiumastro: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Resources

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

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
 About
About
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: cesiumastro
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/cesiumastro.png
name: CesiumAstro
description: CesiumAstro designs, manufactures, and tests full-stack communication systems and satellites for space, air,
  and ground missions. The Austin, Texas company, founded in 2017, builds active phased array payloads (Vireo), software-defined
  radios (SDR-1001/2051/2104/3104), reconfigurable processing units, SATCOM terminals (Skylark), tactical ISR/PNT payloads
  (Nightingale), and the integrated Element LEO satellite platform. Its hardware enables inter-satellite links, high-speed
  downlinks, lunar communications, and 5G non-terrestrial networks. CesiumAstro publishes no public developer API, SDK, or
  documentation portal; this profile tracks the company as an aerospace hardware provider in the API Evangelist network.
url: https://raw.githubusercontent.com/api-evangelist/cesiumastro/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- kleiner-perkins
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Hardtech
- Aerospace
- Satellite
- Communications
- Phased Array
- Software-Defined Radio
- Space
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.cesiumastro.com
- type: About
  url: https://www.cesiumastro.com/about
- type: Blog
  url: https://www.cesiumastro.com/newsroom
- type: Support
  url: https://www.cesiumastro.com/contact
- type: GitHubOrganization
  url: https://github.com/CesiumAstro
- type: PrivacyPolicy
  url: https://www.cesiumastro.com/privacy-policy
- type: TermsOfService
  url: https://www.cesiumastro.com/terms-and-conditions
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence