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.

📡 Source on GitHub

31.4/100 thin ▬ flat Agent 20/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreemiumSelf serve⚡ Free to try

6 APIs

Federal-Government Space Space Situational AwarenessSatellite TrackingOpen Data

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 31.4/100 · thin

Contract Quality 13.0 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 2.7 / 17

Operational Transparency 0.9 / 11

Contract Governance 1.4 / 10

Discoverability 5.5 / 9

Regulatory Posture 4.7 / 15

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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.

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.

JSON Schema 1

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

Examples 2

Example request and response payloads for these APIs.

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

Source (apis.yml)

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
tags_raw:
- 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: '0.23'

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US Space Command

APIs 6

Open Collections 8

Pricing Plans 1