# io.github.cyanheads/nhtsa-vehicle-safety-mcp-server

> Decode VINs, search recalls, complaints, crash ratings, and investigations.

- name: io.github.cyanheads/nhtsa-vehicle-safety-mcp-server
- version: 0.10.0
- connection class: R0 (autonomous)
- trust: 94/100
- quality: 84/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.cyanheads%2Fnhtsa-vehicle-safety-mcp-server
- tools: https://api.protogrid.dev/v1/servers/io.github.cyanheads%2Fnhtsa-vehicle-safety-mcp-server/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "nhtsa-vehicle-safety-mcp-server": {
      "type": "http",
      "url": "https://nhtsa.caseyjhand.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 100
- provenance: 80
- drivers: +repository +namespace-matches-repo +reachable +uptime-99% +updated-2d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 84/100 (good)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list declares ttlMs 0, so clients re-fetch it on every use

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 7 of 7 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: nhtsa_search_recalls (destructiveHint, idempotentHint, openWorldHint); nhtsa_search_complaints (destructiveHint, idempotentHint, openWorldHint); nhtsa_decode_vin (destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 2,576 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 75 (weight 15)

- warn `stability.changes`: 7 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: deps.dev does not know @cyanheads/nhtsa-vehicle-safety-mcp-server@0.10.0, @cyanheads/nhtsa-vehicle-safety-mcp-server@0.10.0

- tools: 7, about 2,576 tokens to load them all
- tool set hash: 6b9db580d28709b7850c9b747343b8ed
- tools last changed: 2026-10-19T03:00:21.409Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.cyanheads/nhtsa-vehicle-safety-mcp-server.svg)](https://protogrid.dev/servers/io.github.cyanheads/nhtsa-vehicle-safety-mcp-server)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-19 `nhtsa_lookup_vehicles` changed (outputSchema)
- 2026-10-19 `nhtsa_search_investigations` changed (inputSchema, outputSchema)
- 2026-10-19 `nhtsa_decode_vin` changed (outputSchema)
- 2026-10-19 `nhtsa_get_safety_ratings` changed (inputSchema, outputSchema)
- 2026-10-19 `nhtsa_search_complaints` changed (inputSchema)
- 2026-10-19 `nhtsa_search_recalls` changed (inputSchema, outputSchema)
- 2026-10-19 `nhtsa_get_vehicle_safety` changed (inputSchema)

Full history: https://api.protogrid.dev/v1/servers/io.github.cyanheads%2Fnhtsa-vehicle-safety-mcp-server/changes

## Dependencies

- npm @cyanheads/nhtsa-vehicle-safety-mcp-server@0.10.0: unknown
- npm @cyanheads/nhtsa-vehicle-safety-mcp-server@0.10.0: unknown

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0.

## Remotes

- https://nhtsa.caseyjhand.com/mcp (streamable-http, auth none, reachable true, uptime30d 0.99159664)

## Packages

- npm @cyanheads/nhtsa-vehicle-safety-mcp-server@0.10.0
- npm @cyanheads/nhtsa-vehicle-safety-mcp-server@0.10.0

## Tools (7)

- `nhtsa_decode_vin`: Decode a Vehicle Identification Number to extract make, model, year, body type, engine, safety equipment, and manufacturing details. Pass a single 17-character VIN string, or an array of up to 50 VINs for batch decode. Partial VINs accepted — use * for unknown positions.
- `nhtsa_get_safety_ratings`: Get NCAP crash test ratings and ADAS feature availability for a vehicle. Use when the user specifically wants crash test stars, rollover risk, or wants to compare safety features across vehicles. NCAP data available from 1990+, best coverage for 2011+.
- `nhtsa_get_vehicle_safety`: Get a comprehensive safety profile for a vehicle. Combines NCAP crash test ratings, recalls, and complaint summary into a single response. Use as the default when asked about vehicle safety, reliability, or purchase decisions.
- `nhtsa_lookup_vehicles`: Look up valid makes, models, and vehicle types in NHTSA's database. Use to resolve ambiguous vehicle names, find correct make/model spelling, or discover what models a manufacturer produces.
- `nhtsa_search_complaints`: Search consumer safety complaints filed with NHTSA for a specific vehicle. Returns a component breakdown over all matching complaints plus a paginated slice of the most recent complaints. Use for common problems, failure patterns, or owner-reported issues.
- `nhtsa_search_investigations`: Search NHTSA defect investigations from the ODI flat file — covering Preliminary Evaluations (PE), Engineering Analyses (EA), Defect Petitions (DP), Recall Queries (RQ), Audit Queries (AQ), and additional ODI types. make, model, and component are structured filters against the investigation record's vehicle associations. All filters are ANDed. Use nhtsaId to fetch one investigation by its exact ID — including the investigationId nhtsa_search_recalls returns for a campaign. Investigations may link to a resulting recall campaign via recallCampaign.
- `nhtsa_search_recalls`: Search recall campaigns by vehicle or campaign number. Use for specific recall lookups, recall history for a vehicle, or looking up a known campaign number.