Before getting started with Task Master, you’ll need to set up your API keys. There are a couple of ways to do this depending on whether you’re using the CLI or working inside MCP. It’s also a good time to start getting familiar with the other configuration options available — even if you don’t need to adjust them yet, knowing what’s possible will help down the line.

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API Key Setup

Task Master uses environment variables to securely store provider API keys and optional endpoint URLs.

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MCP Usage: mcp.json file

For MCP/Cursor usage: Configure keys in the env section of your .cursor/mcp.json file.
.env
{
	"mcpServers": {
		"task-master-ai": {
			"command": "node",
			"args": ["./mcp-server/server.js"],
			"env": {
				"ANTHROPIC_API_KEY": "ANTHROPIC_API_KEY_HERE",
				"PERPLEXITY_API_KEY": "PERPLEXITY_API_KEY_HERE",
				"OPENAI_API_KEY": "OPENAI_API_KEY_HERE",
				"GOOGLE_API_KEY": "GOOGLE_API_KEY_HERE",
				"XAI_API_KEY": "XAI_API_KEY_HERE",
				"OPENROUTER_API_KEY": "OPENROUTER_API_KEY_HERE",
				"MISTRAL_API_KEY": "MISTRAL_API_KEY_HERE",
				"AZURE_OPENAI_API_KEY": "AZURE_OPENAI_API_KEY_HERE",
				"OLLAMA_API_KEY": "OLLAMA_API_KEY_HERE",
				"GITHUB_API_KEY": "GITHUB_API_KEY_HERE"
			}
		}
	}
}

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CLI Usage: .env File

Create a .env file in your project root and include the keys for the providers you plan to use:
.env
# Required API keys for providers configured in .taskmaster/config.json
ANTHROPIC_API_KEY=sk-ant-api03-your-key-here
PERPLEXITY_API_KEY=pplx-your-key-here
# OPENAI_API_KEY=sk-your-key-here
# GOOGLE_API_KEY=AIzaSy...
# AZURE_OPENAI_API_KEY=your-azure-openai-api-key-here
# etc.

# Optional Endpoint Overrides
# Use a specific provider's base URL, e.g., for an OpenAI-compatible API
# OPENAI_BASE_URL=https://api.third-party.com/v1
#
# Azure OpenAI Configuration
# AZURE_OPENAI_ENDPOINT=https://your-resource-name.openai.azure.com/ or https://your-endpoint-name.cognitiveservices.azure.com/openai/deployments
# OLLAMA_BASE_URL=http://custom-ollama-host:11434/api

# Google Vertex AI Configuration (Required if using 'vertex' provider)
# VERTEX_PROJECT_ID=your-gcp-project-id

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What Else Can Be Configured?

The main configuration file (.taskmaster/config.json) allows you to control nearly every aspect of Task Master’s behavior. Here’s a high-level look at what you can customize:
You don’t need to configure everything up front. Most settings can be left as defaults or updated later as your workflow evolves.
For advanced configuration options and detailed customization, see our Advanced Configuration Guide page.