US Space Command website screenshot

US Space Command

US Space Command (USSPACECOM) is a unified combatant command in the United States Department of Defense responsible for conducting operations in, from, and through space to deter conflict and, if necessary, defeat aggressors. The command provides space situational awareness (SSA) data through Space-Track.org, including the official satellite catalog with orbital element sets, conjunction warnings, and reentry predictions for all tracked objects.

US Space Command publishes 6 APIs on the APIs.io network, including Authentication API, Conjunction Data API, Decay and Reentry API, and 3 more. Tagged areas include Federal Government, Space, Space Situational Awareness, Satellite Tracking, and Open Data.

The US Space Command catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

US Space Command’s developer surface includes authentication and 3 more developer resources.

🌐 Visit website 📡 Source on GitHub
42.5/100 developing ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serve⚡ Free to try
6 APIs
Federal GovernmentSpaceSpace Situational AwarenessSatellite TrackingOpen Data

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 42.5/100 · developing
Contract Quality 16.7 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.1 / 13
Governance 7.0 / 12
Discoverability 6.5 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 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/us-space-comman: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

US Space Command Authentication API

Session-based authentication

US Space Command Conjunction Data API

Conjunction data messages (collision warnings)

US Space Command Decay and Reentry API

Satellite decay data and tracking impact predictions

US Space Command General Perturbations API

Current orbital element sets for tracked space objects

US Space Command Satellite Catalog API

Satellite catalog metadata

US Space Command Space Object History API

Historical orbital ephemerides

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Space-Track.org REST API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Us Space Comman Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Us Space Comman Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Us Space Comman Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Us Space Comman Context

3 classes · 20 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

US Space Command API Rules

5 rules · 4 warnings 1 info

SPECTRAL

US Space Command API Rules

6 rules · 2 errors 2 warnings 2 info

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

USSPACECOM General Perturbations (GP) Orbital Element Set

19 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Us Space Command Gp Structure

0 properties

JSON STRUCTURE

Examples 2

Example request and response payloads for these APIs.

Space Track Conjunction Data Example

2 fields

EXAMPLE

Space Track Query Iss Gp Example

2 fields

EXAMPLE

Security Posture 2

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

Us Space Comman Authentication

apiKey · 1 scheme

SECURITY

Us Space Comman Domain Security

TLSv1.3

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Us Space Comman Agentic Access

8 operations · 1 acting

8 operations · 1 acting

AGENTIC

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Company 1

The organization behind the API

LinkedIn
LinkedIn

Source (apis.yml)

apis.yml Raw ↑ 
aid: us-space-comman
url: https://raw.githubusercontent.com/api-evangelist/us-space-comman/refs/heads/main/apis.yml
common:
- type: AgenticAccess
  url: agentic-access/us-space-comman-agentic-access.yml
- type: DomainSecurity
  url: security/us-space-comman-domain-security.yml
- type: Authentication
  url: authentication/us-space-comman-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/usspacecom
apis:
- aid: us-space-comman:us-space-comman-authentication-api
  name: US Space Command Authentication API
  description: Session-based authentication
  humanURL: https://www.space-track.org/documentation
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/us-space-comman-authentication-api-openapi.yml
  - type: Documentation
    url: https://www.space-track.org/documentation
  - type: Portal
    url: https://www.space-track.org
- aid: us-space-comman:us-space-comman-conjunction-data-api
  name: US Space Command Conjunction Data API
  description: Conjunction data messages (collision warnings)
  humanURL: https://www.space-track.org/documentation
  tags:
  - Conjunction Data
  properties:
  - type: OpenAPI
    url: openapi/us-space-comman-conjunction-data-api-openapi.yml
  - type: Documentation
    url: https://www.space-track.org/documentation
  - type: Portal
    url: https://www.space-track.org
- aid: us-space-comman:us-space-comman-decay-and-reentry-api
  name: US Space Command Decay and Reentry API
  description: Satellite decay data and tracking impact predictions
  humanURL: https://www.space-track.org/documentation
  tags:
  - Decay and Reentry
  properties:
  - type: OpenAPI
    url: openapi/us-space-comman-decay-and-reentry-api-openapi.yml
  - type: Documentation
    url: https://www.space-track.org/documentation
  - type: Portal
    url: https://www.space-track.org
- aid: us-space-comman:us-space-comman-general-perturbations-api
  name: US Space Command General Perturbations API
  description: Current orbital element sets for tracked space objects
  humanURL: https://www.space-track.org/documentation
  tags:
  - General Perturbations
  properties:
  - type: OpenAPI
    url: openapi/us-space-comman-general-perturbations-api-openapi.yml
  - type: Documentation
    url: https://www.space-track.org/documentation
  - type: Portal
    url: https://www.space-track.org
- aid: us-space-comman:us-space-comman-satellite-catalog-api
  name: US Space Command Satellite Catalog API
  description: Satellite catalog metadata
  humanURL: https://www.space-track.org/documentation
  tags:
  - Satellite Catalog
  properties:
  - type: OpenAPI
    url: openapi/us-space-comman-satellite-catalog-api-openapi.yml
  - type: Documentation
    url: https://www.space-track.org/documentation
  - type: Portal
    url: https://www.space-track.org
- aid: us-space-comman:us-space-comman-space-object-history-api
  name: US Space Command Space Object History API
  description: Historical orbital ephemerides
  humanURL: https://www.space-track.org/documentation
  tags:
  - Space Object History
  properties:
  - type: OpenAPI
    url: openapi/us-space-comman-space-object-history-api-openapi.yml
  - type: Documentation
    url: https://www.space-track.org/documentation
  - type: Portal
    url: https://www.space-track.org
name: US Space Command
tags:
- Federal Government
- Space
- Space Situational Awareness
- Satellite Tracking
- Open Data
kind: contract
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/us-space-comman.png
access: 3rd-Party
created: '2024-12-03'
modified: '2026-05-19'
position: Consuming
description: US Space Command (USSPACECOM) is a unified combatant command in the United States Department of Defense responsible
  for conducting operations in, from, and through space to deter conflict and, if necessary, defeat aggressors. The command
  provides space situational awareness (SSA) data through Space-Track.org, including the official satellite catalog with orbital
  element sets, conjunction warnings, and reentry predictions for all tracked objects.
features:
- Orbital Element Sets (GP / TLE)
- Satellite Catalog (SATCAT)
- Conjunction Data Messages (CDM)
- Tracking and Impact Prediction (TIP)
- Historical Orbital Ephemerides
- Space Object Decay Data
useCases:
- Satellite operations and collision avoidance
- Space debris monitoring
- Orbital mechanics research
- Satellite tracking and identification
- Space traffic management
- Launch planning and collision risk assessment
integrations:
- TraCSS (Traffic Coordination System for Space)
solutions:
- Space Situational Awareness
- Space Traffic Management
- Orbital Debris Research
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
specificationVersion: '0.19'