npm · @lucairn/mcp-server
$npx -y @lucairn/mcp-server@1.2.9 LUCAIRN_API_KEY (required) · secret — Lucairn gateway API key (lcr_live_*). Issued at https://lucairn.eu/account/keys. Free tier requires BYOK upstream LLM keys (ANTHROPIC_API_KEY or OPENAI_API_KEY).
ANTHROPIC_API_KEY · secret — Upstream Anthropic API key. Used when the requested model is claude-* / anthropic-*. Required if you call Claude models on the free tier (BYOK).
OPENAI_API_KEY · secret — Upstream OpenAI API key. Used when the requested model routes to OpenAI. Required if you call OpenAI models on the free tier (BYOK).
LUCAIRN_BASE_URL — Override the gateway URL. Defaults to https://gateway.lucairn.eu (production). Set this to point at a self-hosted Lucairn deployment.
LUCAIRN_TRANSPORT — Transport mode for the MCP server. One of 'direct-http' (default; v1.1+ behavior) or 'stdio-bridge' (v1.2+ opt-in).