npm · polar-mcp-unofficial
$npx -y polar-mcp-unofficial@0.3.6 POLAR_CLIENT_ID — Polar OAuth client ID. Optional when configured with polar-mcp-server setup.
POLAR_CLIENT_SECRET · secret — Polar OAuth client secret. Prefer polar-mcp-server setup so this secret is stored in ~/.polar-mcp/config.json instead of MCP client config.
POLAR_REDIRECT_URI — Redirect URI configured in the Polar AccessLink admin. Optional when configured with polar-mcp-server setup.
POLAR_TOKEN_PATH — Optional local path for OAuth tokens. Defaults to ~/.polar-mcp/tokens.json.
POLAR_PRIVACY_MODE — Optional payload mode: summary, structured, or raw. Defaults to structured. raw means full Polar AccessLink payloads for supported endpoints.
POLAR_CACHE — Optional SQLite cache toggle. Set to true or sqlite to enable.
POLAR_CACHE_PATH — Optional local SQLite cache path. Defaults to ~/.polar-mcp/cache.sqlite.
POLAR_NO_CACHE — Set to true to bypass the in-memory HTTP response cache (60s TTL for GET only). POST/PUT/DELETE and 4xx/5xx responses are never cached regardless.