# com.containermath/cbm

> Calculate shipment volume (CBM/CFT), weight, and how cargo fits standard shipping containers.

- name: com.containermath/cbm
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 79/100 flags: no-repository
- quality: 91/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.containermath%2Fcbm
- tools: https://api.protogrid.dev/v1/servers/com.containermath%2Fcbm/tools

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

## Connection (mcpServers)

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


## Trust

- hygiene: 80
- liveness: 99
- freshness: 85
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-98% ~updated-89d-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 2025-06-18; 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`: 4 of 4 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,647 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`: 3 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: 4, about 1,647 tokens to load them all
- tool set hash: 8551319ced71fc165bdce13a9e483765
- tools last changed: 2026-10-05T13:36:36.405Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.containermath/cbm.svg)](https://protogrid.dev/servers/com.containermath/cbm)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-05 `get_container_dimensions` added
  - Interior dimensions, volume, floor area and maximum payload for 47 shipping containers, truck trailers, rail wagons and air ULDs. Use this when someone asks for the internal or interior dimensions, cubic capacity, floor area, payload or weight limit of a container or trailer — 20ft, 40ft, 40ft High Cube, 45ft, reefer, open top, flat rack, 53ft dry van, curtainsider, boxcar, LD-3, PMC and more. Called with no arguments (optionally filtered by mode) it lists the whole catalog with the slug for each vessel.
- 2026-10-05 `how_many_pallets_fit` added
  - How many pallets fit in a given shipping container, truck trailer, rail wagon or air ULD. Use this whenever someone asks how many pallets (Euro 1200x800, standard 1200x1000, or US GMA 48x40) fit in a 20ft, 40ft, 40ft High Cube, 45ft, 53ft trailer or any other vessel. Returns the best single-layer floor count with pallets turned to their best orientation — a solved pallet-loading result, not length divided by length, so a 20ft holds 11 Euro pallets and a 40ft holds 25 — plus the double-stacked count with the load height that allows it, and how many the payload allows, which is what decides whether weight or floor space runs out first.
- 2026-10-05 `plan_cargo_load` added
  - Plan how one cargo size loads into a shipping container, truck trailer or rail wagon. Use this when someone asks how many of their boxes, cartons, crates or pallets (of a given size, and optionally weight) fit in a 20ft, 40ft, 40ft High Cube, 45ft, 53ft dry van, curtainsider or other vehicle, how many containers or trucks a quantity needs, or whether weight or space limits the load. Returns units per floor layer (mixed orientations), layers by interior height, units per load, whether space or payload binds, loads needed, utilisation, and a link to the same plan drawn on the web. One size per call; for several sizes, call once per size.

Full history: https://api.protogrid.dev/v1/servers/com.containermath%2Fcbm/changes

## Remotes

- https://mcp.containermath.com (streamable-http, auth none, reachable true, uptime30d 0.9830508)

## Packages

_none_

## Tools (4)

- `calculate_cbm`: Calculate total shipment volume (CBM / cubic metres and CFT / cubic feet), total weight, and how that cargo fits into standard shipping containers (20ft Standard, 40ft Standard, 40ft High Cube). Use this whenever someone asks how much space a shipment takes, how many cubic metres or CBM their boxes / pallets / cartons add up to, whether cargo will fit in a container, what container size they need, or how full a container will be. Accepts a list of items with length, width, height, weight and quantity in metric (cm, kg) or imperial (in, lb) units; returns total CBM, CFT, total weight, and per-container fill percentage with an overload flag.
- `get_container_dimensions`: Interior dimensions, volume, floor area and maximum payload for 47 shipping containers, truck trailers, rail wagons and air ULDs. Use this when someone asks for the internal or interior dimensions, cubic capacity, floor area, payload or weight limit of a container or trailer — 20ft, 40ft, 40ft High Cube, 45ft, reefer, open top, flat rack, 53ft dry van, curtainsider, boxcar, LD-3, PMC and more. Called with no arguments (optionally filtered by mode) it lists the whole catalog with the slug for each vessel.
- `how_many_pallets_fit`: How many pallets fit in a given shipping container, truck trailer, rail wagon or air ULD. Use this whenever someone asks how many pallets (Euro 1200x800, standard 1200x1000, or US GMA 48x40) fit in a 20ft, 40ft, 40ft High Cube, 45ft, 53ft trailer or any other vessel. Returns the best single-layer floor count with pallets turned to their best orientation — a solved pallet-loading result, not length divided by length, so a 20ft holds 11 Euro pallets and a 40ft holds 25 — plus the double-stacked count with the load height that allows it, and how many the payload allows, which is what decides whether weight or floor space runs out first.
- `plan_cargo_load`: Plan how one cargo size loads into a shipping container, truck trailer or rail wagon. Use this when someone asks how many of their boxes, cartons, crates or pallets (of a given size, and optionally weight) fit in a 20ft, 40ft, 40ft High Cube, 45ft, 53ft dry van, curtainsider or other vehicle, how many containers or trucks a quantity needs, or whether weight or space limits the load. Returns units per floor layer (mixed orientations), layers by interior height, units per load, whether space or payload binds, loads needed, utilisation, and a link to the same plan drawn on the web. One size per call; for several sizes, call once per size.