Connect your AI
Connect ChatGPT to Aggregate
Last updated
Custom MCP servers are added on ChatGPT on the web. Which plans can add one has changed more than once; check OpenAI's help page "Developer mode and MCP apps in ChatGPT" if the option below is missing.
- Open ChatGPT Plugins, choose Add (top right), then Add custom MCP server.
- Name it "Aggregate" and add a short description.
- Under Connection, keep Server URL and paste
https://app.aggregate.finance/mcp. Authentication: OAuth. - Check I understand and want to continue, then select Create as a plugin.
- In the Connect Aggregate dialog, choose Connect, sign in to Aggregate and choose what ChatGPT can see.
- Try: "Give me my profit and loss for last month."
In a ChatGPT Business or Enterprise workspace, an admin may need to allow custom MCP servers first.
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 2026-10-12 against the app's own help pages. All assistants: Connect your AI.
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