Required

VariableDescription
OPENAI_API_KEYOpenAI API key
ANTHROPIC_API_KEYAnthropic API key
GOOGLE_API_KEYGoogle AI API key
At least one is required.

Optional

VariableDescriptionDefault
POLAR_TOKENPolar.sh API token for billing
MEKONG_CONFIGPath to config file~/.mekong/config.json
MEKONG_HOMEData directory~/.mekong
LOG_LEVELLogging levelINFO
MCP_HOSTMCP server host127.0.0.1
MCP_PORTMCP server port8080