Environment Variables

API Keys

Provider credentials are picked up automatically from these environment variables:

Environment Variable	Provider
`HYPER_API_KEY`	Charm Hyper
`ANTHROPIC_API_KEY`	Anthropic
`OPENAI_API_KEY`	OpenAI
`VERCEL_API_KEY`	Vercel AI Gateway
`GEMINI_API_KEY`	Google Gemini
`ZAI_API_KEY`	Z.ai
`MINIMAX_API_KEY`	MiniMax
`SYNTHETIC_API_KEY`	Synthetic
`HF_TOKEN`	Hugging Face Inference
`CEREBRAS_API_KEY`	Cerebras
`OPENROUTER_API_KEY`	OpenRouter
`IONET_API_KEY`	io.net
`ALIBABA_SINGAPORE_API_KEY`	Alibaba (Singapore)
`ALIBABA_US_API_KEY`	Alibaba (United States)
`GROQ_API_KEY`	Groq
`AVIAN_API_KEY`	Avian
`OPENCODE_API_KEY`	OpenCode Zen & Go
`VERTEXAI_PROJECT`	Google Cloud VertexAI (Gemini)
`VERTEXAI_LOCATION`	Google Cloud VertexAI (Gemini)
`AWS_ACCESS_KEY_ID`	Amazon Bedrock (Claude)
`AWS_SECRET_ACCESS_KEY`	Amazon Bedrock (Claude)
`AWS_REGION`	Amazon Bedrock (Claude)
`AWS_PROFILE`	Amazon Bedrock (Custom Profile)
`AWS_BEARER_TOKEN_BEDROCK`	Amazon Bedrock
`AZURE_OPENAI_API_ENDPOINT`	Azure OpenAI models
`AZURE_OPENAI_API_KEY`	Azure OpenAI models (optional when using Entra ID)
`AZURE_OPENAI_API_VERSION`	Azure OpenAI models
`MOONSHOT_API_KEY`	Moonshot

Variable	Description
`CRUSH_GLOBAL_CONFIG`	Override the global config location
`CRUSH_GLOBAL_DATA`	Override the global data location
`CRUSH_SKILLS_DIR`	Additional skills directory
`CRUSH_DISABLE_METRICS`	Set to `1` to opt out of metrics
`DO_NOT_TRACK`	Set to `1` to opt out of metrics (convention)
`CRUSH_DISABLE_PROVIDER_AUTO_UPDATE`	Set to `1` to disable provider auto-updates
`CATWALK_URL`	Override the Catwalk provider catalog URL

Hooks receive a separate set of CRUSH_* variables — see Input & Output.