Federal Motor Carrier Safety Administration

As the lead federal government agency responsible for regulating and providing safety oversight of commercial motor vehicles (CMVs), FMCSA's mission is to reduce crashes, injuries, and fatalities involving large trucks and buses.

Federal Motor Carrier Safety Administration publishes 1 API contract indexed on the APIs.io network: Carriers API. Tagged areas include Federal Government, Safety, and Transportation.

The Federal Motor Carrier Safety Administration catalog on APIs.io includes 1 Spectral governance ruleset.

Federal Motor Carrier Safety Administration’s developer surface includes authentication, documentation, and 7 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

24.6/100 emerging ▬ flat Agent 23/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Federal Government Safety Transportation

Kin Score

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

Composite quality — 24.6/100 · emerging

Contract Quality 9.0 / 21

Developer Ergonomics 3.6 / 17

Access Clarity 1.3 / 17

Operational Transparency 0.9 / 11

Contract Governance 1.4 / 10

Discoverability 4.9 / 9

Regulatory Posture 1.8 / 15

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 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 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
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
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
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 21.4 — up to +15.7 composite points
Contract Quality scores 42.2 — up to +14.5 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/federal-motor-carrier-safety-administration/apis.yml: open an issue on github.com/api-evangelist/federal-motor-carrier-safety-administration 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 1

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

Federal Motor Carrier Safety Administration Carriers API

The Carriers API from Federal Motor Carrier Safety Administration — 7 operation(s) for carriers.

Open Collections 2

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

Federal Motor Carrier Safety Administration QCMobile Carriers API

OPEN COLLECTION

Federal Motor Carrier Safety Administration QCMobile API

OPEN COLLECTION

Federal Motor Carrier Safety Administration API pricing

Not yet checked against Federal Motor Carrier Safety Administration'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 Federal Motor Carrier Safety Administration's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Federal Motor Carrier Safety Administration Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Federal Motor Carrier Safety Administration 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.

Federal Motor Carrier Safety Administration

SLA

FinOps 1

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

Federal Motor Carrier Safety Administration Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Federal Motor Carrier Safety Administration API Rules

46 rules · 44 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

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

Federal Motor Carrier Safety Administration Authentication

apiKey · 1 scheme

SECURITY

Federal Motor Carrier Safety Administration Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Federal Motor Carrier Safety Administration Agentic Access

7 operations

7 operations · 0 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

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

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 2

The organization behind the API

LinkedIn

Website

Website

Source (apis.yml)

aid: federal-motor-carrier-safety-administration
name: Federal Motor Carrier Safety Administration
description: As the lead federal government agency responsible for regulating and providing safety oversight of commercial
  motor vehicles (CMVs), FMCSA's mission is to reduce crashes, injuries, and fatalities involving large trucks and buses.
type: Index
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: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/federal-motor-carrier-safety-administration.png
access: 3rd-Party
created: '2024-12-03'
modified: '2026-05-19'
position: Consuming
tags:
- Federal Government
- Safety
- Transportation
tags_raw:
- Federal Government
- Safety
- Transportation
- Federal-Government
url: https://raw.githubusercontent.com/api-evangelist/federal-motor-carrier-safety-administration/refs/heads/main/apis.yml
specificationVersion: '0.23'
apis:
- aid: federal-motor-carrier-safety-administration:federal-motor-carrier-safety-administration-carriers-api
  name: Federal Motor Carrier Safety Administration Carriers API
  description: The Carriers API from Federal Motor Carrier Safety Administration — 7 operation(s) for carriers.
  humanURL: https://mobile.fmcsa.dot.gov/QCDevsite/docs/apiAccess
  baseURL: https://mobile.fmcsa.dot.gov/qc/services
  tags:
  - Carrier
  tags_raw:
  - Carriers
  properties:
  - type: OpenAPI
    url: openapi/federal-motor-carrier-safety-administration-carriers-api-openapi.yml
  - type: Documentation
    url: https://mobile.fmcsa.dot.gov/QCDevsite/docs/apiAccess
common:
- type: Plans
  url: plans/federal-motor-carrier-safety-administration-plans-pricing.yml
- type: RateLimits
  url: rate-limits/federal-motor-carrier-safety-administration-rate-limits.yml
- type: FinOps
  url: finops/federal-motor-carrier-safety-administration-finops.yml
- type: AgenticAccess
  url: agentic-access/federal-motor-carrier-safety-administration-agentic-access.yml
- type: DomainSecurity
  url: security/federal-motor-carrier-safety-administration-domain-security.yml
- type: Authentication
  url: authentication/federal-motor-carrier-safety-administration-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/fmcsa
- type: Website
  url: https://www.fmcsa.dot.gov/
- type: Documentation
  url: https://mobile.fmcsa.dot.gov/QCDevsite/docs/apiAccess
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Federal Motor Carrier Safety Administration API — frequently asked questions

Does Federal Motor Carrier Safety Administration have an API?

Yes. APIs.io lists 1 API from Federal Motor Carrier Safety Administration, including Federal Motor Carrier Safety Administration Carriers API.

Is there an OpenAPI specification for the Federal Motor Carrier Safety Administration API?

Yes. APIs.io indexes 1 OpenAPI specification for Federal Motor Carrier Safety Administration, each linked for download from this page.

How do I authenticate with the Federal Motor Carrier Safety Administration API?

Federal Motor Carrier Safety Administration uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Federal Motor Carrier Safety Administration Authentication.

How much does the Federal Motor Carrier Safety Administration API cost?

APIs.io lists 3 pricing plans for Federal Motor Carrier Safety Administration, with each plan's price, limits and inclusions under Pricing on this page.

Is the Federal Motor Carrier Safety Administration API ready for AI agents?

Federal Motor Carrier Safety Administration has a Kin Score of 24.6 out of 100 (emerging) and an Agent Readiness score of 22.7 (agent-aware), scored by API Evangelist on 2026-11-06.

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