This is an MCP (Model Context Protocol) server for Exact Online. When adding the connector you sign in with your own Exact Online account via the official OAuth flow.
Claude Code:claude mcp add --transport http exactonline https://exact-online.mcp.scinex.nl/exactonline
claude.ai (web/desktop): Settings › Connectors › Add custom connector,
using https://exact-online.mcp.scinex.nl/exactonline.