> ## Documentation Index
> Fetch the complete documentation index at: https://platform.kimi.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Use Kimi Models in OpenCode
> Install OpenCode, connect it to the Kimi Open Platform through built-in authentication, and use Kimi K3 with its thinking-effort variants.
[OpenCode](https://opencode.ai/) is an open-source programming agent. This guide shows how to connect OpenCode to the Kimi Open Platform through built-in authentication and use the `kimi-k3` model with its 1M-token context window.
This guide is based on OpenCode 1.18.3. Its interface, configuration options, and supported capabilities may change between versions.
## Prerequisites
Complete these prerequisites before you start. Follow the linked official guides for installation and account setup.
Install or update OpenCode with the official documentation.
Create a Kimi Open Platform API key and keep it private.
Confirm that the account has available balance, then check limits, budgets, and organization settings.
Kimi K3 requires available balance in your account; vouchers granted from new-user verification cannot be used for Kimi K3. Rate limits vary by user tier. See [Rate Limits](/docs/pricing/limits). If your organization uses an IP whitelist, follow [Organization Best Practices](/docs/guide/org-best-practice) and add the public egress IPv4 address of the computer that calls the API.
## Step 1: Configure the API key
Run `opencode auth login` and select **Moonshot AI** in the provider list:
```text theme={null}
$ opencode auth login
┌ Add credential
│
◆ Select provider
│ Search: Moon█ (2 matches)
│ ● Moonshot AI
│ ↑/↓ to select • Enter: confirm • Type: to search
└
```
Then paste your Kimi Open Platform API key and press `Enter`:
```text theme={null}
$ opencode auth login
┌ Add credential
│
◇ Select provider
│ Moonshot AI
│
◇ Enter your API key
│ ▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪
│
└ Done
```
Do not put the API key in configuration files, screenshots, or a Git repository. This guide uses a Global Kimi Open Platform key; do not substitute a key from another Kimi service or region.
## Step 2: Select the Kimi K3 model
Run `opencode` to start OpenCode:
```bash theme={null}
opencode
```
Run the `/models` command in the input field:
Search for and select **Kimi K3** in the Select model dialog:
## Step 3: Adjust the reasoning effort
Run the `/variants` command in the input field:
Select **max** in the Select variant dialog:
`kimi-k3` defaults to `max` reasoning effort and can also switch to `low` / `high`. See the [Model Parameter Reference](/docs/api/models-overview).
When setup is complete, the status bar should show **Kimi K3**, **Moonshot AI**, and **max**:
## Learn more
* [OpenCode documentation](https://opencode.ai/docs)
* [Kimi Open Platform quickstart](/docs/overview)