BlogBy Buyerbase
Claude for buying agents
Connect Claude or ChatGPT to your Buyerbase workspace. Ask about your buyers, viewings and properties in plain language, and let it make changes as you, each one confirmed first.
Ask in plain language
Through MCP, Claude reads your agency's people, viewings, properties and activity, so you can ask questions like these:
- Which buyers are stuck in the mortgage advice stage?
- Which viewings this week are still unconfirmed?
- What happened on Anna de Vries's file in the last month?
- Which active properties under 450k have no viewings yet?
- Which buyers are still missing an approved proof of identity?
Changes, made as you
Sign in with Buyerbase and the tools act as you, with your permissions. Claude can make the same nine changes Bas makes in the app: create a task, add a note, log a call, move a buyer to another stage, schedule or move a viewing, add saved homes, record a bid and log a sale.
Each change is marked as changing data, so Claude asks you before it runs. It lands in the buyer's Activity marked via MCP, where you can reverse it.
Two ways to connect
The server lives at https://mcp.buyerbase.app.
- Sign in with Buyerbase. For Claude and ChatGPT. You sign in with your own account: reads, and changes you confirm.
- An agency API key. For integrations and scripts. Read only: a key never makes a change.
The setup guide walks through Claude, Claude Code and ChatGPT step by step.
What stays private
Document contents are never available through MCP; files stay behind the audited download endpoint. A key or an account from another agency sees nothing of yours.
Every tool call is written to your agency's audit log with the tool name, its arguments and who made it. MCP calls cost no credits.
How it came about
The read tools shipped on 9 September 2026, with agency API keys. Changes and Sign in with Buyerbase followed on 11 October 2026.