# OpenCode

[<mark style="color:blue;">OpenCode</mark>](https://opencode.ai) is an open-source terminal-based AI coding agent that supports 75+ model providers and local MCP servers. It is designed for developers who work primarily in the terminal and want AI assistance without leaving the command line.

## Prerequisites

* OpenCode installed. For more information, see [<mark style="color:blue;">opencode.ai/docs/#install</mark>](https://opencode.ai/docs/#install)
* The `ionoscloud-mcp` binary on your `PATH`. For more information, see [<mark style="color:blue;">Quick Start</mark>](/cloud/ai/mcp-server/quick-start.md)
* An <code class="expression">space.vars.ionos\_cloud\_api</code> token. For least-privilege access, see [<mark style="color:blue;">Authentication</mark>](/cloud/ai/mcp-server/configuration/authentication.md#token-scope-by-product-area) to scope the token to only the tools you need.

## Add the MCP server

{% hint style="info" %}
OpenCode uses `"type": "local"` with a `command` array and an `environment` key rather than `env`. The `type` field is OpenCode's own config schema; it maps to a local stdio subprocess internally, not an MCP transport type. The config file is `opencode.json` or `opencode.jsonc`, not `mcp.json`.
{% endhint %}

Add the following to your OpenCode config:

* **Global config:** `~/.config/opencode/opencode.jsonc`
* **Project config:** `opencode.json` or `opencode.jsonc` in your project root (takes precedence over global)

```json
{
  "mcp": {
    "ionoscloud": {
      "type": "local",
      "command": ["/usr/local/bin/ionoscloud-mcp"],
      "environment": {
        "IONOS_TOKEN": "your-api-token"
      }
    }
  }
}
```

Replace `your-api-token` with your <code class="expression">space.vars.ionos\_cloud\_api</code> token. On Windows, use the full path: `C:\\bin\\ionoscloud-mcp.exe`.

To also enable Object Storage tools, add the Object Storage credentials:

```json
{
  "mcp": {
    "ionoscloud": {
      "type": "local",
      "command": ["/usr/local/bin/ionoscloud-mcp"],
      "environment": {
        "IONOS_TOKEN": "your-api-token",
        "IONOS_S3_ACCESS_KEY": "your-access-key",
        "IONOS_S3_SECRET_KEY": "your-secret-key"
      }
    }
  }
}
```

{% hint style="info" %}
**Tip:** A project-level `opencode.json` at your repository root lets teammates share the MCP server definition. Share the server name and command, but **not** the credentials. Each team member sets `IONOS_TOKEN` in their local environment (for example, in a `.env` file that is gitignored) rather than in the shared config file.
{% endhint %}

## Verify the connection

{% stepper %}
{% step %}

### Start OpenCode

Run `opencode` in your terminal. On startup, OpenCode loads MCP servers defined in the config. A confirmation message in the startup output confirms the `ionoscloud` server connected.
{% endstep %}

{% step %}

### Test a tool call

In the OpenCode prompt, type: *List my* <code class="expression">space.vars.ionos\_cloud</code> *data centers.*

{% hint style="success" %}
**Result:** OpenCode calls `list_datacenters` and returns your data centers.
{% endhint %}
{% endstep %}
{% endstepper %}

{% hint style="info" %}
**Note:** If the `ionoscloud-mcp` binary is not in `/usr/local/bin`, update the `command` array to use the correct path. Run `which ionoscloud-mcp` to confirm.

If no confirmation appears on startup, see [<mark style="color:blue;">Troubleshooting</mark>](/cloud/ai/mcp-server/troubleshooting.md).
{% endhint %}

For full OpenCode MCP documentation, see [<mark style="color:blue;">opencode.ai/docs/mcp-servers</mark>](https://opencode.ai/docs/mcp-servers/).


---

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