Sierra Space

Sierra Space is a commercial space and defense technology company headquartered in Louisville, Colorado, spun out of Sierra Nevada Corporation as an independent entity in April 2021 and building on more than three decades of spaceflight heritage. The company designs and manufactures the Dream Chaser reusable lifting-body spaceplane and Shooting Star cargo module, the LIFE expandable space habitat and the Orbital Reef commercial space station developed with Blue Origin, Eclipse-class satellites for national security and on-orbit servicing missions, VORTEX rocket propulsion and hypersonics, space solar arrays and electrical power systems, environmental control and life support systems, and a broad spaceflight hardware catalog spanning valves, regulators, radiators, sensors, actuators, docking and berthing systems, deployable structures and launch adapters. Sierra Space states it has delivered more than 4,000 space systems, subsystems and components across more than 500 space missions. It is a hardware and mission-systems manufacturer rather than a software platform: as of this profiling pass it publishes no public developer portal, API documentation or machine-readable API contract.

Sierra Space is profiled on the APIs.io network. Tagged areas include Company, Aerospace, Space, Defense, and Satellites.

Sierra Space’s developer surface includes engineering blog, product news, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub
11.5/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
0 APIs
CompanyAerospaceSpaceDefenseSatellitesSpacecraftPropulsionManufacturingNational SecuritySpace Stations

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 11.5/100 · 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 6.9 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
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
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/sierra-space: 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.

Sierra Space Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

PayloadUsersGuide
PayloadUsersGuide

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Build 1

SDKs, sample code, and the tooling you integrate with

CodeOfConduct
CodeOfConduct

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Contact
Contact

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 8

The organization behind the API

Website
Website
 About
About
 Blog
Blog
 BlogRSS
BlogRSS
 News
News
 Newsroom
Newsroom
 Careers
Careers
 WebsiteSitemap
WebsiteSitemap

Scroll for all 8

Other 6

Properties that don't map to a standard resource type

CompanyOverview
CompanyOverview
 Media
Media
 Leadership
Leadership
 Suppliers
Suppliers
 Patents
Patents
 ProductCatalog
ProductCatalog

Source (apis.yml)

apis.yml Raw ↑ 
aid: sierra-space
name: Sierra Space
description: 'Sierra Space is a commercial space and defense technology company headquartered in Louisville, Colorado, spun
  out of Sierra Nevada Corporation as an independent entity in April 2021 and building on more than three decades of spaceflight
  heritage. The company designs and manufactures the Dream Chaser reusable lifting-body spaceplane and Shooting Star cargo
  module, the LIFE expandable space habitat and the Orbital Reef commercial space station developed with Blue Origin, Eclipse-class
  satellites for national security and on-orbit servicing missions, VORTEX rocket propulsion and hypersonics, space solar
  arrays and electrical power systems, environmental control and life support systems, and a broad spaceflight hardware catalog
  spanning valves, regulators, radiators, sensors, actuators, docking and berthing systems, deployable structures and launch
  adapters. Sierra Space states it has delivered more than 4,000 space systems, subsystems and components across more than
  500 space missions. It is a hardware and mission-systems manufacturer rather than a software platform: as of this profiling
  pass it publishes no public developer portal, API documentation or machine-readable API contract.'
url: https://raw.githubusercontent.com/api-evangelist/sierra-space/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
image: https://www.sierraspace.com/wp-content/uploads/2025/09/SS_KV_2025_08_01_001_HIGH-RES-4.webp
specificationVersion: '0.20'
created: '2026-07-31'
modified: '2026-07-31'
tags:
- Company
- Aerospace
- Space
- Defense
- Satellites
- Spacecraft
- Propulsion
- Manufacturing
- National Security
- Space Stations
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/sierra-space-domain-security.yml
- type: Website
  url: https://www.sierraspace.com/
- type: About
  url: https://www.sierraspace.com/about/
- type: CompanyOverview
  url: https://www.sierraspace.com/company-overview/
- type: Blog
  url: https://www.sierraspace.com/blog/
- type: BlogRSS
  url: https://www.sierraspace.com/feed/
- type: News
  url: https://www.sierraspace.com/news/
- type: Newsroom
  url: https://www.sierraspace.com/newsroom/
- type: Media
  url: https://www.sierraspace.com/media/
- type: Leadership
  url: https://www.sierraspace.com/leadership/
- type: Careers
  url: https://www.sierraspace.com/careers/
- type: Contact
  url: https://www.sierraspace.com/contact/
- type: Suppliers
  url: https://www.sierraspace.com/suppliers/
- type: Patents
  url: https://www.sierraspace.com/patents/
- type: TermsOfService
  url: https://www.sierraspace.com/terms-of-use/
- type: PrivacyPolicy
  url: https://www.sierraspace.com/privacy-policy/
- type: CodeOfConduct
  url: https://www.sierraspace.com/careers/code-of-conduct/
- type: ProductCatalog
  url: https://www.sierraspace.com/spaceflight-hardware-catalog/
- type: PayloadUsersGuide
  url: https://www.sierraspace.com/payload-users-guide/
- type: LLMsTxt
  url: llms/sierra-space-llms.txt
- type: WebsiteSitemap
  url: https://www.sierraspace.com/sitemap_index.xml
x-enrichment:
  date: '2026-07-31'
  status: enriched
  artifacts_added: 3
  pass: local-v1