# io.github.CloudCorpRecords/wattindex (oci · ghcr.io/cloudcorprecords/wattindex)

GPU energy per million output tokens by model and GPU, with grid carbon intensity.

- Trust score: 41/100 (low)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- npm · `@reneturcios/wattindex`: 64/100, [markdown](https://verifymcp.io/servers/cloudcorprecords-wattindex/reneturcios-wattindex.md), [page](https://verifymcp.io/servers/cloudcorprecords-wattindex/reneturcios-wattindex)
- oci · `ghcr.io/cloudcorprecords/wattindex`: 41/100 (this document), [markdown](https://verifymcp.io/servers/cloudcorprecords-wattindex/ghcr-io-cloudcorprecords-wattindex.md), [page](https://verifymcp.io/servers/cloudcorprecords-wattindex/ghcr-io-cloudcorprecords-wattindex)

## Channel facts

- Registry: `oci`
- Package: `ghcr.io/cloudcorprecords/wattindex`
- Version: `0.1.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Supply Chain Security**: 0/100
  - No malware scan is available for this kind of package: the supply-chain vendors we use do not cover it. This is a permanent gap in our coverage, not a finding about the package.
  - Known CVEs could not be checked: this artifact ships no SBOM or dependency manifest, so there is no dependency list to read.
  - Install-script risk not yet assessed.
  - Dependency health could not be checked: this artifact ships no SBOM or dependency manifest, so there is no dependency list to read.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 2 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 72/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 571 tokens (~71/item across 8 items; 8 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 10/100
  - Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 8 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the io.github.CloudCorpRecords/wattindex MCP server?

io.github.CloudCorpRecords/wattindex runs locally as a container image, launched with docker run --rm -i ghcr.io/cloudcorprecords/wattindex:0.1.0. Ready-made configuration for Claude, Cursor, VS Code, Codex and 3 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add cloudcorprecords-wattindex -- docker run --rm -i ghcr.io/cloudcorprecords/wattindex:0.1.0
```

### Cursor

```json
{
  "mcpServers": {
    "cloudcorprecords-wattindex": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "ghcr.io/cloudcorprecords/wattindex:0.1.0"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "cloudcorprecords-wattindex": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "ghcr.io/cloudcorprecords/wattindex:0.1.0"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add cloudcorprecords-wattindex -- docker run --rm -i ghcr.io/cloudcorprecords/wattindex:0.1.0
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "cloudcorprecords-wattindex": {
      "type": "local",
      "command": [
        "docker",
        "run",
        "--rm",
        "-i",
        "ghcr.io/cloudcorprecords/wattindex:0.1.0"
      ],
      "enabled": true
    }
  }
}
```

### Hermes

```yaml
mcp_servers:
  cloudcorprecords-wattindex:
    command: "docker"
    args: ["run", "--rm", "-i", "ghcr.io/cloudcorprecords/wattindex:0.1.0"]
```

### Netclaw

```json
{
  "McpServers": {
    "cloudcorprecords-wattindex": {
      "Transport": "stdio",
      "Command": "docker",
      "Arguments": [
        "run",
        "--rm",
        "-i",
        "ghcr.io/cloudcorprecords/wattindex:0.1.0"
      ]
    }
  }
}
```

### Other

```json
{
  "mcpServers": {
    "cloudcorprecords-wattindex": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "ghcr.io/cloudcorprecords/wattindex:0.1.0"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-04 (score 41, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-02 (score 40)

First indexed and scored.

## MCP tools (8)

### `list_models` (~23 tokens)

List the models on the index and the GPUs each model has measurements for.

### `energy_per_million_tokens` (~96 tokens)

Return the best energy row per GPU for a model: watt-hours per million output tokens, keeping rows at or under the inter-token latency deadline.

Input parameters:

- `gpu` (string): GPU name; omit to get the best row for every GPU
- `itl_deadline_ms` (number): Latency ceiling in milliseconds for choosing the best row (default 500)
- `model` (string, required): Model name on the index

### `estimate` (~219 tokens)

Estimate GPU energy for a token count from the best matching row, with kg CO2e for a grid and optional energy at the meter.

Input parameters:

- `country` (string): Country name, short name, ISO 3166 alpha-2/alpha-3 code, or World
- `gpu` (string): GPU name; omit to use the best row overall
- `itl_deadline_ms` (number): Latency ceiling in milliseconds for choosing the best row (default 500)
- `model` (string, required): Model name on the index
- `num_gpus` (integer): Only configurations on exactly this many GPUs
- `output_tokens` (number, required): Number of output tokens to price
- `pue` (number): Power usage effectiveness, at least 1.0; enables energy at the meter
- `running_batch` (number): Average running batch; the measured configuration nearest to it is used
- `system_power_ratio` (number): Whole-system to GPU power ratio, at least 1.0; enables energy at the meter

### `compare_gpus` (~61 tokens)

Compare the best energy rows for a model on H100 versus B200.

Input parameters:

- `itl_deadline_ms` (number): Latency ceiling in milliseconds for choosing the best row (default 500)
- `model` (string, required): Model name on the index

### `concurrency_curve` (~46 tokens)

Return energy per million tokens at every measured running batch for a model on a GPU.

Input parameters:

- `gpu` (string, required): GPU name
- `model` (string, required): Model name on the index

### `grid_intensity` (~59 tokens)

Return the annual average grid carbon intensity (gCO2e per kWh) for a country or World.

Input parameters:

- `country` (string, required): Country name, short name, ISO 3166 alpha-2/alpha-3 code, or World

### `gpu_hardware` (~45 tokens)

Return GPU hardware specs: max TDP, memory, MIG profiles and whole-system ceilings.

Input parameters:

- `gpu` (string): GPU name; omit to list every GPU on the index

### `sources` (~22 tokens)

List every source behind the index, with version, retrieval date and licence.

## Diagnostics

Captured diagnostic sections: Provenance. The full working is on the page: https://verifymcp.io/servers/cloudcorprecords-wattindex/ghcr-io-cloudcorprecords-wattindex#diagnostics

## Score history

- 2026-11-05: 41
- 2026-11-04: 41
- 2026-11-03: 40
- 2026-11-02: 40

## Common questions

### What is the io.github.CloudCorpRecords/wattindex MCP server?

io.github.CloudCorpRecords/wattindex is an MCP server listed in the public MCP registry as io.github.CloudCorpRecords/wattindex. GPU energy per million output tokens by model and GPU, with grid carbon intensity. This page covers its container image (ghcr.io/cloudcorprecords/wattindex).

### Is the io.github.CloudCorpRecords/wattindex MCP server safe to use?

io.github.CloudCorpRecords/wattindex scores 41 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the io.github.CloudCorpRecords/wattindex MCP server expose?

io.github.CloudCorpRecords/wattindex exposes 8 tools: list_models, energy_per_million_tokens, estimate, compare_gpus, concurrency_curve, and 3 more. Their descriptions and schemas cost roughly 571 tokens of context every time the server is loaded.

### Is the io.github.CloudCorpRecords/wattindex MCP server still maintained?

io.github.CloudCorpRecords/wattindex is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the io.github.CloudCorpRecords/wattindex MCP server under?

io.github.CloudCorpRecords/wattindex declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- GitHub Container Registry: https://ghcr.io/cloudcorprecords/wattindex
- Repository: https://github.com/CloudCorpRecords/wattindex
- Changelog RSS feed: https://verifymcp.io/servers/cloudcorprecords-wattindex/ghcr-io-cloudcorprecords-wattindex.xml
- Changelog JSON feed: https://verifymcp.io/servers/cloudcorprecords-wattindex/ghcr-io-cloudcorprecords-wattindex.json
- HTML version of this page: https://verifymcp.io/servers/cloudcorprecords-wattindex/ghcr-io-cloudcorprecords-wattindex