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 5 API contracts indexed on the APIs.io network, including Equipment API, Incident Reports API, Port State Information API, and 2 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.

📡 Profile data on GitHub

25.3/100 emerging ▬ flat Agent 26/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemium

1 published contract

Federal GovernmentMaritime SafetyVessel DocumentationEmergency Response Law Enforcement

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 25.3/100 · emerging

Contract Quality 11.3 / 21

Developer Ergonomics 1.6 / 17

Access Clarity 1.3 / 17

Operational Transparency 0.9 / 11

Contract Governance 1.0 / 10

Discoverability 5.6 / 9

Regulatory Posture 1.6 / 15

Agent readiness — 26/100 · 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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.

Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 7.9 — up to +18.4 composite points
Developer Ergonomics scores 9.5 — up to +18.1 composite points
Operational Transparency scores 7.9 — up to +12.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/united-states-coast-guard/apis.yml: open an issue on github.com/api-evangelist/united-states-coast-guard to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
US Federal API Programs (api.data.gov, Login.gov, GSA MAS, FedRAMP)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

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 5

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

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

United States Coast Guard API pricing

Not yet checked against United States Coast Guard's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against United States Coast Guard's documentation. All 5 limits →

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

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

United States Coast Guard

SLA

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 — cgmix maritime information exchange rules

7 rules · 3 errors 4 warnings

SPECTRAL

United States Coast Guard — jsonschema 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

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 1

The organization behind the API

LinkedIn

Source (apis.yml)

aid: united-states-coast-guard
url: https://raw.githubusercontent.com/api-evangelist/united-states-coast-guard/refs/heads/main/apis.yml
common:
- type: Plans
  url: plans/united-states-coast-guard-plans-pricing.yml
- type: RateLimits
  url: rate-limits/united-states-coast-guard-rate-limits.yml
- type: FinOps
  url: finops/united-states-coast-guard-finops.yml
- 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
  - 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
- Federal-Government
kind: contract
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  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'

United States Coast Guard API — frequently asked questions

Does United States Coast Guard have an API?

Yes. APIs.io lists 5 APIs from United States Coast Guard, including NAVCEN AIS Vessel Information Verification Service, United States Coast Guard Equipment API and United States Coast Guard Incident Reports API, and 2 more.

Is there an OpenAPI specification for the United States Coast Guard API?

Yes. APIs.io indexes 4 OpenAPI specifications for United States Coast Guard, each linked for download from this page.

How much does the United States Coast Guard API cost?

APIs.io lists 3 pricing plans for United States Coast Guard, with each plan's price, limits and inclusions under Pricing on this page.

Is the United States Coast Guard API ready for AI agents?

United States Coast Guard has a Kin Score of 25.3 out of 100 (emerging) and an Agent Readiness score of 25.5 (agent-aware), scored by API Evangelist on 2026-11-06.

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