Environment Variables

Decodie reads environment variables from .decodie/.env in your project root, falling back to process-level environment variables.

API keys

Set one of these to enable LLM features:

Variable	Provider
`ANTHROPIC_API_KEY`	Anthropic (Claude)
`OPENAI_API_KEY`	OpenAI (GPT)
`GOOGLE_GENERATIVE_AI_API_KEY`	Google (Gemini)
`MISTRAL_API_KEY`	Mistral
`XAI_API_KEY`	xAI (Grok)
`DEEPSEEK_API_KEY`	DeepSeek

Model override

Variable	Default	Description
`LLM_MODEL`	(provider default)	Override the model used for all LLM calls. Must be a valid model ID for your configured provider.

Examples:

ANTHROPIC_API_KEY=sk-ant-api03-...
LLM_MODEL=claude-opus-4-6

OPENAI_API_KEY=sk-...
LLM_MODEL=gpt-4o-mini

OpenAI-compatible endpoints

Variable	Default	Description
`OPENAI_BASE_URL`	(none)	Custom base URL for OpenAI-compatible APIs (e.g. local Ollama, Azure OpenAI, or other compatible providers).

Example for a local Ollama instance:

OPENAI_API_KEY=ollama
OPENAI_BASE_URL=http://localhost:11434/v1
LLM_MODEL=llama3

Deprecated variables

Variable	Status	Migration
`CLAUDE_API_KEY`	Deprecated	Rename to `ANTHROPIC_API_KEY`
`CLAUDE_CODE_OAUTH_TOKEN`	Removed	Use `ANTHROPIC_API_KEY` instead

CLAUDE_API_KEY still works and is treated as an Anthropic key, but will log a deprecation warning.

.env file format

The .decodie/.env file uses standard dotenv syntax:

# Comments start with #
ANTHROPIC_API_KEY=sk-ant-api03-your-key-here
LLM_MODEL=claude-sonnet-4-6

# Quoted values are supported
OPENAI_API_KEY="sk-your-key-here"