Connect your AI

Connect Notion AI to Aggregate

Last updated November 1, 2026

Notion can use custom MCP servers on Business and Enterprise plans, once a workspace admin turns them on.

An admin opens Settings → Connections, the Manage tab, and turns on Enable custom MCP servers.
For a Custom Agent: open the agent's Settings → Tools & Access, choose Add connection → Custom MCP server, paste https://app.aggregate.finance/mcp and name it Aggregate. (For Notion Agent, an admin uses Settings → Connections → Discover → Add Custom MCP.)
Choose Connect, sign in to Aggregate and choose what Notion can see.
Ask: "Summarize this month's cash in and out for our weekly notes."

Connections are per user and per agent and don't carry over between Notion Agent and Custom Agents. Not available on mobile. A header key also works: create a key in Aggregate (Connect your AI → + Connect another AI → Create a key, with an expiry) and use it as a bearer token.

Self-hosting? Use https://<your-server>/mcp instead; it must be reachable over HTTPS.

What it can do: read your cash, runway, transactions, invoices, payroll, cap table and reports, and (only if you allow it) add records, each one labeled and undoable for 30 days. It can never move money, pay bills or send anything.

Last checked 2026-11-01 against Notion's own help pages: MCP connections for Custom Agents. All assistants: Connect your AI.