Microsoft AI · MCP
The bridge between AI and your business systems.
Model Context Protocol is how AI agents reach enterprise systems. We've built MCP servers since the spec landed — for Business Central, Microsoft 365, Fusion 360, and for clients who need their own tools exposed to Claude or ChatGPT. Every server follows one rule: an agent that can write to your ERP gets guardrails the model can't talk its way past.
Two paths in
Start free. Build bespoke when you're ready.
Free · open source
Business Central MCP
Install bc-mcp-proxy in an afternoon: pip install, an Azure App Registration, OAuth scopes, first call. Point Claude at your BC tenant and ask a customer's balance, their overdue invoices, their last purchase — in plain language, against live data. MIT-licensed, no account with us.
The setup guide
Custom · fixed scope
MCP for your stack
MCP beyond the standard BC server — custom tools, write-actions with approval steps, other systems next to BC. Same plumbing as the Fusion 360 pipeline, pointed at your stack. A fixed-scope build, usually around two weeks. You get the code and the audit trail.
Scope a build
The plumbing
Three links in the chain.
01
Your AI client
Claude Desktop, VS Code, or Cursor — anything that speaks stdio MCP. No plugin to write, no SDK to learn.
02
bc-mcp-proxy, on your machine
The open-source proxy handles OAuth sign-in, silent token refresh, and reconnects. Your credentials never leave your device.
03
Microsoft's BC MCP server
The proxy connects over HTTPS to the Business Central MCP endpoint Microsoft hosts — with the scopes your admin granted and nothing more.
Security model in one line: the model gets read access to what your Entra admin scoped, every call is logged, and write-actions exist only where you've explicitly built them. Layered validation — schema bounds, business rules, post-build checks — because a system that can write to your ERP is unforgiving.
A word on data
For production, use the right Claude plan.
Against a live tenant, run this on Claude Team, Claude Enterprise, or the Anthropic API — Commercial Terms, no training on your inputs, and a DPA for GDPR. Not the consumer plans. We're an independent ISV, not affiliated with Anthropic; you choose the tier that matches your data.