MiMo Code Integration

MiMo Code is an AI-powered coding agent command-line tool developed by Xiaomi. It can understand your code repository, plan changes, safely execute shell commands, edit files, and autonomously manage complex software development tasks in your terminal.

By configuring MiMo Code to route through Halfbill, you can point it at Claude and GPT models while keeping the same API format MiMo Code expects, with full cost tracking in your dashboard.

Prerequisites

• A Halfbill API key — sign up

Setup

Install MiMo Code

If you haven't already, install MiMo Code by running the installation command in your terminal:

curl -fsSL https://mimo.xiaomi.com/install | bash

Confirm the installation by checking the help command:

mimo --help

Configure mimocode.json

Create or edit your MiMo Code configuration file at ~/.config/mimocode/mimocode.json (on Linux/macOS) or ~/.mimocode/mimocode.json.

Specify the default models you want to use and route the anthropic provider to your Halfbill endpoint. Here is an example configuration that sets up Claude Opus 5, Claude Haiku 4.5, and GPT-5.5:

{
	"model": "anthropic/claude-opus-5",
	"small_model": "anthropic/claude-haiku-4-5",
	"provider": {
		"anthropic": {
			"options": {
				"apiKey": "llmgtwy_your_api_key_here",
				"baseURL": "https://api.halfbill.uk/v1"
			},
			"models": {
				"gpt-5.5": {
					"name": "gpt-5.5"
				},
				"claude-opus-5": {
					"name": "claude-opus-5"
				},
				"claude-haiku-4-5": {
					"name": "claude-haiku-4-5"
				}
			}
		}
	}
}

Replace llmgtwy_your_api_key_here with your actual Halfbill API key from the dashboard.

Alternatively: Use Environment Variables

If you prefer to configure the provider dynamically, you can export the standard Anthropic environment variables before starting MiMo Code:

export ANTHROPIC_API_KEY=llmgtwy_your_api_key_here
export ANTHROPIC_BASE_URL=https://api.halfbill.uk/v1

Run MiMo Code

Navigate to your project folder and launch the TUI or run a prompt directly:

mimo

Or run it with a message:

mimo run "Your coding prompt here"

All requests will now be routed through Halfbill, allowing you to use advanced models for local autonomous coding while showing real-time usage and cost statistics on your Halfbill dashboard.

Configuration Details

The Provider Options

To point MiMo Code to Halfbill, you define the baseURL and apiKey inside the options of the anthropic provider block.

"provider": {
	"anthropic": {
		"options": {
			"apiKey": "llmgtwy_your_api_key_here",
			"baseURL": "https://api.halfbill.uk/v1"
		}
	}
}

Defining Custom Models

Because MiMo Code CLI restricts requests to built-in models by default, any custom model you wish to target (such as gpt-5.5 or claude-opus-5) must be registered in the models dictionary within the anthropic provider config:

"models": {
	"gpt-5.5": {
		"name": "gpt-5.5"
	}
}

Once registered, you can set them as your default model or small model using the anthropic/ prefix (e.g. "model": "anthropic/gpt-5.5").

Why Use Halfbill with MiMo Code

• Claude and GPT — Anthropic and OpenAI models at half list price in a single CLI configuration.
• Unified cost tracking — Get a detailed breakdown of costs per prompt and session in your dashboard.
• Response caching — Automatically cache repeated requests (such as parsing or building commands) to save API costs.