# Department of Transportation

**Canonical:** https://apis.io/providers/department-of-transportation/  
**Website:** https://www.transportation.gov/  
**APIs profiled:** 18

The U.S. Department of Transportation (DOT) and its operating administrations - NHTSA, FMCSA, FAA, FRA, FTA, MARAD, PHMSA, and BTS - publish a number of public APIs covering vehicles, motor carriers, aviation, transit, freight, and transportation statistics.

## Kin Score — 30.9 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 30.9).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 57.3 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 19.0 |
| Commercial Clarity | 13.2 |
| Access Clarity | 13.2 |

Regulatory layer — **Government & Public Sector**: 31.5 (matched via tags).

## Agent readiness — 29.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Free · Self-serve signup — onboarding: self-serve, pricing: free, trial: no (confidence: high).

## APIs (18)

- **Bureau of Transportation Statistics Data Portal** — Public datasets and downloadable data products published by BTS.
- **Federal Railroad Administration Safety Data** — FRA Office of Safety Analysis - rail incident, accident, and inspection data.
- **Federal Transit Administration National Transit Database** — Public-transportation operating, financial, and asset data submitted by transit agencies under the National Transit Database.
- **PHMSA Pipeline Safety Data** — Pipeline and Hazardous Materials Safety Administration incident, mileage, and operator data for U.S. pipelines.
- **Department of Transportation Airport Status API** — The Airport Status API from Department of Transportation — 1 operation(s) for airport status.
- **Department of Transportation Authority API** — Operating authority records
- **Department of Transportation Carriers API** — Motor carrier lookups
- **Department of Transportation Complaints API** — Consumer complaint data
- **Department of Transportation Crashes API** — Crash data
- **Department of Transportation Inspections API** — Roadside inspection data
- **Department of Transportation Makes API** — Vehicle makes
- **Department of Transportation Manufacturers API** — Vehicle manufacturers
- **Department of Transportation Models API** — Vehicle models
- **Department of Transportation Ratings API** — 5-Star Safety Ratings
- **Department of Transportation Recalls API** — Vehicle, equipment, child seat, and tire recalls
- **Department of Transportation Vehicle Variables API** — Vehicle variable definitions
- **Department of Transportation VIN Decode API** — Decode VINs into structured vehicle data
- **Department of Transportation WMI API** — World Manufacturer Identifier (WMI) decoding

## Agentic access (1)

- **Department Of Transportation Agentic Access** — 20 operations · 1 acting

## Security (2)

- **Department Of Transportation Authentication** — apiKey · 1 scheme
- **Department Of Transportation Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Department Of Transportation Plans Pricing**

## Tags

Federal-Government, Transportation, Vehicles, Aviation, Motor Carriers

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/department-of-transportation/). Scores are computed from the provider's own public artifacts under a published rubric.