MCP — Connect Claude & your IDE
Use Krolyx straight from Claude, Cursor, VS Code.
Krolyx ships an MCP (Model Context Protocol) server: a single command that exposes 200+ business operations — clients, invoices, projects, leads, notes, calendar, email — to any MCP-compatible AI client. Once it's wired in, the assistant can read AND write to your Krolyx with the exact same permissions as your API key.
The problem we solve
You'd love to ask Claude "draft a follow-up for the 3 invoices overdue this week" but it has no idea who your clients are. Copy-pasting context every time is slow and lossy.
What it lets you do
5 key features
200+ tools, all your modules
Clients, leads, projects, invoices (with credit notes & multi-entity), notes, mindmaps, calendar, proposals, messaging, email, expenses, support, feedback, MyDay todos, activity logs. The assistant can list, read, create, update, send.
Per-key scopes
Each API key carries its own permissions: read-only, full access (`*`), or scoped per module (`clients.write`, `invoices.send`…). Revoke from Settings the second something feels off.
Works with every MCP client
Claude Desktop, Claude Code (CLI), Cursor, VS Code, Windsurf, Zed. Same setup — paste a JSON snippet pointing at the npm package and your API key.
No backend to host
The server runs locally via `npx`. No infra. No proxy. Auth happens against your existing Convex deployment.
Self-updating
The package warns you on stdout when a new version is available. Restart your client and it pulls the latest tools without touching config.
Typical use cases
Solo freelancer
"Claude, list me all invoices overdue more than 30 days and draft a polite reminder for each". Claude reads the invoices via MCP, drafts the emails, you review and click send.
Studio with a team
An admin grants every member their own scoped key (read-only on commercial data, full on their assigned projects). Each member uses their own assistant without seeing the rest.
Power user in Cursor
While coding a feature, ask Cursor "create a project named 'X migration' with milestones for steps A, B, C" — the project lands in Krolyx without leaving the editor.
Want to try MCP — Connect Claude & your IDE?
30 days free, no credit card.