# LoopGrid MCP server

> Lets an AI client record and retrieve signed, tamper-evident decision evidence for consequential agent actions.

- Repository: https://github.com/loopgridio/loopgrid-mcp
- Page: https://hostedmcp.org/servers/loopgridio/loopgrid-mcp
- Transport: stdio
- Stars: 0
- License: Apache-2.0
- Latest version: 0.1.0

## Install

### Claude Code

```sh
claude mcp add --env 'LOOPGRID_SERVICE_KEY=<YOUR_LOOPGRID_SERVICE_KEY>' loopgrid-mcp -- uvx loopgrid-mcp
```

### Cursor (`~/.cursor/mcp.json`)

```json
{
  "mcpServers": {
    "loopgrid-mcp": {
      "command": "uvx",
      "args": [
        "loopgrid-mcp"
      ],
      "env": {
        "LOOPGRID_SERVICE_KEY": "<YOUR_LOOPGRID_SERVICE_KEY>"
      }
    }
  }
}
```

### VS Code (`.vscode/mcp.json`)

```json
{
  "servers": {
    "loopgrid-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "loopgrid-mcp"
      ],
      "env": {
        "LOOPGRID_SERVICE_KEY": "<YOUR_LOOPGRID_SERVICE_KEY>"
      }
    }
  }
}
```

### VS Code CLI

```sh
code --add-mcp '{"name":"loopgrid-mcp","type":"stdio","command":"uvx","args":["loopgrid-mcp"],"env":{"LOOPGRID_SERVICE_KEY":"<YOUR_LOOPGRID_SERVICE_KEY>"}}'
```

### Claude Desktop (`claude_desktop_config.json`)

```json
{
  "mcpServers": {
    "loopgrid-mcp": {
      "command": "uvx",
      "args": [
        "loopgrid-mcp"
      ],
      "env": {
        "LOOPGRID_SERVICE_KEY": "<YOUR_LOOPGRID_SERVICE_KEY>"
      }
    }
  }
}
```

### Codex

```sh
codex mcp add loopgrid-mcp --env 'LOOPGRID_SERVICE_KEY=<YOUR_LOOPGRID_SERVICE_KEY>' -- uvx loopgrid-mcp
```

### Codex config.toml (`~/.codex/config.toml`)

```toml
[mcp_servers.loopgrid-mcp]
command = "uvx"
args = ["loopgrid-mcp"]

[mcp_servers.loopgrid-mcp.env]
LOOPGRID_SERVICE_KEY = "<YOUR_LOOPGRID_SERVICE_KEY>"
```

### Gemini CLI

```sh
gemini mcp add -s user -e 'LOOPGRID_SERVICE_KEY=<YOUR_LOOPGRID_SERVICE_KEY>' loopgrid-mcp uvx -- loopgrid-mcp
```

### Gemini settings.json (`~/.gemini/settings.json`)

```json
{
  "mcpServers": {
    "loopgrid-mcp": {
      "command": "uvx",
      "args": [
        "loopgrid-mcp"
      ],
      "env": {
        "LOOPGRID_SERVICE_KEY": "<YOUR_LOOPGRID_SERVICE_KEY>"
      }
    }
  }
}
```

## Environment variables

| Name | Required | Secret | Description |
|---|---|---|---|
| `LOOPGRID_SERVICE_KEY` | no | yes | Scoped LoopGrid service API key when authentication is enabled |
| `LOOPGRID_BASE_URL` | no | no | Base URL of the LoopGrid service |
| `LOOPGRID_WORKSPACE` | no | no | LoopGrid workspace id |

## FAQ

### Is human review enabled by default?

No, the human review tool is disabled by default and requires explicit configuration of a review flag and reviewer identity.

### How can I verify the integrity of the recorded evidence?

You can use the verify_evidence tool to ask the connected LoopGrid service to verify the decision's signed workspace chain.