NHTSA Crash API

The NHTSA Crash Data API provides access to the National Highway Traffic Safety Administration's crash data including crash reports, vehicle information, and safety statistics collected through the Fatality Analysis Reporting System (FARS) and Crash Report Sampling System (CRSS).

NHTSA Crash API publishes 3 API contracts indexed on the APIs.io network: Cases API, Crashes API, and FARS API. Tagged areas include Crash Data, Government, NHTSA, Traffic Safety, and Transportation.

The NHTSA Crash API catalog on APIs.io includes 1 Spectral governance ruleset.

NHTSA Crash API’s developer surface includes documentation, support, and 6 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

22.9/100 emerging ▬ flat Agent 19/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemium

1 published contract

Crash DataGovernment NHTSA Traffic Safety Transportation

Kin Score

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

Composite quality — 22.9/100 · emerging

Contract Quality 9.5 / 21

Developer Ergonomics 2.4 / 17

Access Clarity 1.3 / 17

Operational Transparency 0.9 / 11

Contract Governance 1.4 / 10

Discoverability 4.9 / 9

Regulatory Posture 0.9 / 15

Agent readiness — 19/100 · 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 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 0 / 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
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

8 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 14.3 — up to +17.1 composite points
Contract Quality scores 44.7 — up to +13.8 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/nhtsa-crash-api/apis.yml: open an issue on github.com/api-evangelist/nhtsa-crash-api 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 →

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 3

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

NHTSA Crash API Cases API

Case list and case detail lookups

NHTSA Crash API Crashes API

Crash queries by location, vehicle, and occupant

NHTSA Crash API FARS API

Fatality Analysis Reporting System datasets and queries

Open Collections 4

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

NHTSA Crash Data Cases API

OPEN COLLECTION

NHTSA Crash Data Cases Crashes API

OPEN COLLECTION

NHTSA Crash Data Cases FARS API

OPEN COLLECTION

NHTSA Crash Data API

OPEN COLLECTION

NHTSA Crash API pricing

Not yet checked against NHTSA Crash API'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 NHTSA Crash API's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Nhtsa Crash Api Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Nhtsa Crash Api 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.

NHTSA Crash API

SLA

FinOps 1

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

Nhtsa Crash Api Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

NHTSA Crash API API Rules

52 rules · 50 errors 1 warnings 1 info

SPECTRAL

Security Posture 1

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

Nhtsa Crash Api Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Nhtsa Crash Api Agentic Access

6 operations

6 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 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: nhtsa-crash-api
name: NHTSA Crash API
description: The NHTSA Crash Data API provides access to the National Highway Traffic Safety Administration's crash data including
  crash reports, vehicle information, and safety statistics collected through the Fatality Analysis Reporting System (FARS)
  and Crash Report Sampling System (CRSS).
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: 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/nhtsa-crash-api.png
tags:
- Crash Data
- Government
- NHTSA
- Traffic Safety
- Transportation
url: https://raw.githubusercontent.com/api-evangelist/nhtsa-crash-api/refs/heads/main/apis.yml
created: '2026-03-16'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: nhtsa-crash-api:nhtsa-crash-api-cases-api
  name: NHTSA Crash API Cases API
  description: Case list and case detail lookups
  humanURL: https://crashviewer.nhtsa.dot.gov/CrashAPI
  tags:
  - Cases
  properties:
  - type: OpenAPI
    url: openapi/nhtsa-crash-api-cases-api-openapi.yml
  - type: Documentation
    url: https://crashviewer.nhtsa.dot.gov/CrashAPI
- aid: nhtsa-crash-api:nhtsa-crash-api-crashes-api
  name: NHTSA Crash API Crashes API
  description: Crash queries by location, vehicle, and occupant
  humanURL: https://crashviewer.nhtsa.dot.gov/CrashAPI
  tags:
  - Crashes
  properties:
  - type: OpenAPI
    url: openapi/nhtsa-crash-api-crashes-api-openapi.yml
  - type: Documentation
    url: https://crashviewer.nhtsa.dot.gov/CrashAPI
- aid: nhtsa-crash-api:nhtsa-crash-api-fars-api
  name: NHTSA Crash API FARS API
  description: Fatality Analysis Reporting System datasets and queries
  humanURL: https://crashviewer.nhtsa.dot.gov/CrashAPI
  tags:
  - FARS
  properties:
  - type: OpenAPI
    url: openapi/nhtsa-crash-api-fars-api-openapi.yml
  - type: Documentation
    url: https://crashviewer.nhtsa.dot.gov/CrashAPI
common:
- type: Plans
  url: plans/nhtsa-crash-api-plans-pricing.yml
- type: RateLimits
  url: rate-limits/nhtsa-crash-api-rate-limits.yml
- type: FinOps
  url: finops/nhtsa-crash-api-finops.yml
- type: AgenticAccess
  url: agentic-access/nhtsa-crash-api-agentic-access.yml
- type: DomainSecurity
  url: security/nhtsa-crash-api-domain-security.yml
- type: Website
  url: https://www.nhtsa.gov/
- type: Documentation
  url: https://crashviewer.nhtsa.dot.gov/CrashAPI
- type: Support
  url: https://www.nhtsa.gov/contact
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

NHTSA Crash API — frequently asked questions

Does NHTSA Crash API have an API?

Yes. APIs.io lists 3 APIs from NHTSA Crash API, including NHTSA Crash API Cases API, NHTSA Crash API Crashes API and NHTSA Crash API FARS API.

Is there an OpenAPI specification for the NHTSA Crash API?

Yes. APIs.io indexes 3 OpenAPI specifications for NHTSA Crash API, each linked for download from this page.

How much does the NHTSA Crash API cost?

APIs.io lists 3 pricing plans for NHTSA Crash API, with each plan's price, limits and inclusions under Pricing on this page.

Is the NHTSA Crash API ready for AI agents?

NHTSA Crash API has a Kin Score of 22.9 out of 100 (emerging) and an Agent Readiness score of 19.0 (agent-aware), scored by API Evangelist on 2026-11-06.

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