Reference

Environment variables

All optional.

Variable	Default	Purpose
`PAATHSHALA_DB`	`~/.paathshala/paathshala.db`	Library file. Set it for both the app and MCP server.
`PAATHSHALA_URL`	`http://localhost:3000`	App base URL, used for links the MCP server returns.
`PAATHSHALA_CLAUDE_BIN`	`claude`	Path of the Claude Code CLI used by Run AI.

None of these are API keys. Paathshala needs none.