United States Coast Guard website screenshot

United States Coast Guard

The United States Coast Guard is a branch of the military responsible for enforcing maritime laws, protecting the nation's waterways and coastlines, and ensuring the safety and security of seafarers. They conduct search and rescue operations, respond to environmental disasters, combat illegal drug trafficking and immigration, and conduct security patrols to thwart terrorism threats. The USCG provides public APIs and data services through the CGMIX Maritime Information Exchange, the Navigation Center (NAVCEN), and the National Vessel Documentation Center (NVDC).

United States Coast Guard publishes 4 APIs on the APIs.io network, including Equipment API, Incident Reports API, Port State Information API, and 1 more. Tagged areas include Federal-Government, Maritime Safety, Vessel Documentation, Emergency Response, and Law Enforcement.

The United States Coast Guard catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

🌐 Visit website 📡 Source on GitHub
26.9/100 thin ▬ flat Agent 32/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
AccessFreemium
5 APIs
Federal-GovernmentMaritime SafetyVessel DocumentationEmergency ResponseLaw Enforcement

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 26.9/100 · thin
Contract Quality 12.8 / 21
Developer Ergonomics 0.0 / 17
Access Clarity 0.0 / 17
Operational Transparency 0.9 / 11
Contract Governance 3.1 / 10
Discoverability 6.3 / 9
Regulatory Posture 3.1 / 15
Agent readiness — 32/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 6 / 6
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 9 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 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 4 / 4
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/united-states-coast-guard: 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 5

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

NAVCEN AIS Vessel Information Verification Service

The Vessel Information Verification Service (VIVS) is a NAVCEN web service that allows retrieval of a vessel's broadcasted AIS static data, including Maritime Mobile Service Ide...

United States Coast Guard Equipment API

USCG approved equipment certification data

United States Coast Guard Incident Reports API

Incident Investigation Report data

United States Coast Guard Port State Information API

Port State Information Exchange vessel safety data

United States Coast Guard Vessel Documentation API

National Vessel Documentation Center vessel records

Open Collections 6

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

API Collection

OPEN COLLECTION

CGMIX Maritime Information Exchange API

OPEN COLLECTION

CGMIX Maritime Information Exchange Equipment API

OPEN COLLECTION

CGMIX Maritime Information Exchange Equipment Incident Reports API

OPEN COLLECTION

CGMIX Maritime Information Exchange Equipment Port State Information API

OPEN COLLECTION

CGMIX Maritime Information Exchange Equipment Vessel Documentation API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

United States Coast Guard Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

United States Coast Guard Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

United States Coast Guard Finops

FINOPS

Semantic Vocabularies 1

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

United States Coast Guard Context

5 classes · 19 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

United States Coast Guard API Rules

7 rules · 3 errors 4 warnings

SPECTRAL

United States Coast Guard API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 2

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

CGMIX Vessel Inspection Case

11 properties

JSON SCHEMA

CGMIX Vessel

16 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Cgmix Vessel Structure

0 properties

JSON STRUCTURE

Examples 3

Example request and response payloads for these APIs.

Cgmix Get Equipment Details Example

3 fields

EXAMPLE

Cgmix Get Vessel Cases Example

3 fields

EXAMPLE

Cgmix Get Vessel Summary Example

3 fields

EXAMPLE

Security Posture 1

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

United States Coast Guard Domain Security

TLSv1.2 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

United States Coast Guard Agentic Access

8 operations

8 operations · 0 acting

AGENTIC

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 1

The organization behind the API

LinkedIn
LinkedIn

Source (apis.yml)

apis.yml Raw ↑ 
aid: united-states-coast-guard
url: https://raw.githubusercontent.com/api-evangelist/united-states-coast-guard/refs/heads/main/apis.yml
common:
- type: AgenticAccess
  url: agentic-access/united-states-coast-guard-agentic-access.yml
- type: DomainSecurity
  url: security/united-states-coast-guard-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/uscoastguard
apis:
- aid: united-states-coast-guard:navcen-ais-vessel-information
  name: NAVCEN AIS Vessel Information Verification Service
  tags:
  - Maritime
  - AIS
  - Vessel Tracking
  - Federal-Government
  tags_raw:
  - Maritime
  - AIS
  - Vessel Tracking
  - Federal Government
  humanURL: https://www.navcen.uscg.gov/ais-vivs-home
  baseURL: https://www.navcen.uscg.gov
  properties:
  - url: https://www.navcen.uscg.gov/ais-vivs-home
    type: Documentation
  - url: https://www.navcen.uscg.gov/ais-vessel-information-verification-service
    type: Documentation
  description: The Vessel Information Verification Service (VIVS) is a NAVCEN web service that allows retrieval of a vessel's
    broadcasted AIS static data, including Maritime Mobile Service Identity (MMSI), call sign, vessel name, official number,
    dimensions, draft, vessel type, and positioning source. Provided by the U.S. Coast Guard Navigation Center.
- aid: united-states-coast-guard:united-states-coast-guard-equipment-api
  name: United States Coast Guard Equipment API
  description: USCG approved equipment certification data
  humanURL: https://cgmix.uscg.mil/xml/default.aspx
  baseURL: https://cgmix.uscg.mil
  tags:
  - Equipment
  properties:
  - type: OpenAPI
    url: openapi/united-states-coast-guard-equipment-api-openapi.yml
  - type: Documentation
    url: https://cgmix.uscg.mil/xml/default.aspx
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/united-states-coast-guard/refs/heads/main/rules/cgmix-maritime-information-exchange-rules.yml
- aid: united-states-coast-guard:united-states-coast-guard-incident-reports-api
  name: United States Coast Guard Incident Reports API
  description: Incident Investigation Report data
  humanURL: https://cgmix.uscg.mil/xml/default.aspx
  baseURL: https://cgmix.uscg.mil
  tags:
  - Incident Reports
  properties:
  - type: OpenAPI
    url: openapi/united-states-coast-guard-incident-reports-api-openapi.yml
  - type: Documentation
    url: https://cgmix.uscg.mil/xml/default.aspx
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/united-states-coast-guard/refs/heads/main/rules/cgmix-maritime-information-exchange-rules.yml
- aid: united-states-coast-guard:united-states-coast-guard-port-state-information-api
  name: United States Coast Guard Port State Information API
  description: Port State Information Exchange vessel safety data
  humanURL: https://cgmix.uscg.mil/xml/default.aspx
  baseURL: https://cgmix.uscg.mil
  tags:
  - Port State Information
  properties:
  - type: OpenAPI
    url: openapi/united-states-coast-guard-port-state-information-api-openapi.yml
  - type: Documentation
    url: https://cgmix.uscg.mil/xml/default.aspx
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/united-states-coast-guard/refs/heads/main/rules/cgmix-maritime-information-exchange-rules.yml
- aid: united-states-coast-guard:united-states-coast-guard-vessel-documentation-api
  name: United States Coast Guard Vessel Documentation API
  description: National Vessel Documentation Center vessel records
  humanURL: https://cgmix.uscg.mil/xml/default.aspx
  baseURL: https://cgmix.uscg.mil
  tags:
  - Vessel Documentation
  properties:
  - type: OpenAPI
    url: openapi/united-states-coast-guard-vessel-documentation-api-openapi.yml
  - type: Documentation
    url: https://cgmix.uscg.mil/xml/default.aspx
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/united-states-coast-guard/refs/heads/main/rules/cgmix-maritime-information-exchange-rules.yml
name: United States Coast Guard
tags:
- Federal-Government
- Maritime Safety
- Vessel Documentation
- Emergency Response
- Law Enforcement
tags_raw:
- Federal Government
- Maritime Safety
- Vessel Documentation
- Emergency Response
- Law Enforcement
kind: contract
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/united-states-coast-guard.png
access: 3rd-Party
created: '2024-12-03'
modified: '2026-05-19'
position: Consuming
description: The United States Coast Guard is a branch of the military responsible for enforcing maritime laws, protecting
  the nation's waterways and coastlines, and ensuring the safety and security of seafarers. They conduct search and rescue
  operations, respond to environmental disasters, combat illegal drug trafficking and immigration, and conduct security patrols
  to thwart terrorism threats. The USCG provides public APIs and data services through the CGMIX Maritime Information Exchange,
  the Navigation Center (NAVCEN), and the National Vessel Documentation Center (NVDC).
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
specificationVersion: '0.23'