# Car Handshake

> Search and compare live vehicles from participating US and Canadian dealers outside Quebec.

- name: com.carhandshake/inventory
- version: 1.2.12-discovery.1
- connection class: R0 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 91/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.carhandshake%2Finventory
- tools: https://api.protogrid.dev/v1/servers/com.carhandshake%2Finventory/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "inventory": {
      "type": "http",
      "url": "https://mcp.carhandshake.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-6d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 91/100 (strong)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### 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: 100 (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`: 10 of 10 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 2,893 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no 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`: no npm or PyPI package

- tools: 10, about 2,893 tokens to load them all
- tool set hash: d3eef942548b23724b8efda5882abd0b
- badge: [![protogrid quality](https://protogrid.dev/badge/com.carhandshake/inventory.svg)](https://protogrid.dev/servers/com.carhandshake/inventory)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://mcp.carhandshake.com/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (10)

- `compare_vehicles`: Only for explicit comparison: after exactly one shop_vehicles call, pass 2-4 distinct returned listing IDs. Never search or shop again.
- `fetch`: Citation only after search; never shopping/detail. Fetch one exact ID.
- `find_dealerships`: Use this once to find dealerships by name/place with IDs, addresses, and listing counts. Named stock: one shop_vehicles call with a returned dealer_id. For contacts or sales/service hours: get_dealership once.
- `get_dealership`: Use this with an exact dealer_id to return every public rooftop, contact, site, capability, and named sales/service schedule.
- `get_vehicle`: For full detail, pass exact shop_vehicles listing_id; returns dealer.dealer_id.
- `request_trade_in_appraisal`: After explicit consent and confirmation, request a trade-in appraisal for this listing.
- `schedule_test_drive`: After explicit consent and confirmation, request a test drive for this listing.
- `search`: Citation only; never shopping/detail/compare. Search once, then fetch exact IDs.
- `shop_vehicles`: Use for live US/CA cars/SUVs/trucks/EVs/motorcycles/RVs/trailers by place (near me), budget, mileage, make/model, condition, body, fuel, features, named dealer, or live-listing recommendation. Quebec excluded. Call once; never retry/refine/broaden. Fallback stays in-country; filters exact. Facts only; web only if asked. Named-dealer stock: find_dealerships then shop. Not repair/reliability/facts/MSRP/out-of-market, named-source, web-only, or no-app. Verbatim request; never ask for ZIP/postal.
- `submit_vehicle_inquiry`: After explicit consent and confirmation, send this listing's dealer a question.