# Connect your agent

> Claude, ChatGPT, Claude Code, Cursor or VS Code connect to https://mcp.rustine.io, with OAuth or an API key.

Rustine's MCP server lets your agent list your projects, start a scan, read the issues, get a fix and ask for a recheck. Rustine never edits your code: your agent applies the fix, on your machine.

**Server address: `https://mcp.rustine.io`**

Before you start: a plan that opens MCP (Pro, or the 14-day trial on Solo, see [Access](https://docs.rustine.io/en/access.md)) and two-factor authentication turned on in Rustine.

## With OAuth (recommended)

No key to copy. On the first call, your agent opens Rustine's authorization page: you see the account and plan it will act on, you click **Allow**, and it renews its access by itself.

| Agent | Where to add it | Step by step |
| --- | --- | --- |
| Claude (claude.ai, app) | Customize › Connectors › Add custom connector, name `Rustine`, URL `https://mcp.rustine.io` | [Help center (French)](https://rustine.io/aide/claude-app) |
| ChatGPT | Plugins › + › custom MCP server, OAuth authentication | [Help center (French)](https://rustine.io/aide/chatgpt) |
| Claude Code | `claude mcp add --transport http rustine https://mcp.rustine.io`, then `/mcp` | [Help center (French)](https://rustine.io/aide/claude-code) |
| Cursor | `~/.cursor/mcp.json`: `{ "mcpServers": { "rustine": { "url": "https://mcp.rustine.io" } } }` | |
| VS Code | `.vscode/mcp.json`: `{ "servers": { "rustine": { "type": "http", "url": "https://mcp.rustine.io" } } }` | |

In the app, **Settings › Connected agents** copies the address and opens the right page for Claude and ChatGPT, and lists every connected agent with its last use.

## With an API key

For an agent that cannot do OAuth. The key goes in the `Authorization` header, never in the address.

| Agent | Configuration |
| --- | --- |
| Claude Code | `claude mcp add --transport http rustine https://mcp.rustine.io --header "Authorization: Bearer $RUSTINE_API_KEY"` |
| Cursor | `{ "mcpServers": { "rustine": { "url": "https://mcp.rustine.io", "headers": { "Authorization": "Bearer ${env:RUSTINE_API_KEY}" } } } }` |
| VS Code | `"headers": { "Authorization": "Bearer ${input:rustine-key}" }`, with an `inputs` entry of type `promptString` and `password: true` |

OAuth or key? The [help center](https://rustine.io/aide/oauth-ou-cle) compares both (in French). To call the server from a script, without an agent: [From a script](https://docs.rustine.io/en/mcp/scripts.md).

## What to ask

1. "List my Rustine projects and their scores."
2. "Scan mysaas.com with Rustine."
3. "What are the security issues of mysaas.com, worst first?"
4. "Get the fix for the first one and apply it."
5. "Recheck this issue with Rustine" (after your deploy).

The tools it calls, and what each one costs: [The tools](https://docs.rustine.io/en/mcp/tools.md).

## Examples

### Claude Code

```bash
claude mcp add --transport http rustine https://mcp.rustine.io
# then /mcp in Claude Code to allow it
```

### Cursor

```json
{
  "mcpServers": {
    "rustine": { "url": "https://mcp.rustine.io" }
  }
}
```

### VS Code

```json
{
  "servers": {
    "rustine": { "type": "http", "url": "https://mcp.rustine.io" }
  }
}
```