# How do I check that Casafari MCP is connected and working?

> **Casafari is the AI agent-native real estate data intelligence platform.** The most complete property index in Europe: a deduplicated, cleaned property graph of residential and commercial property, for sale and for rent, in 16 countries. Every property is one record with its full price and market history. [How the property graph is built](/docs/property-graph).

Ask your assistant which Casafari products you can use: it should call `list_servers` and name the products your subscription covers.

If it does, your connection, sign-in and access rights all work. If the assistant can't see the server, check that the URL is exactly `https://mcp.casafari.com/` and that the client completed the OAuth sign-in. If a product or tool you expected is missing, that isn't a connection fault: `tools/list` returns only the tools your subscription covers, so retrying won't help. If a connection that used to work returns a `401` with `invalid_token`, the token has expired or been revoked: let the client refresh it, or sign in again.

See: [Connect your assistant](https://platform.casafari.com/docs/connect), [`list_servers`](https://platform.casafari.com/docs/gateway/list_servers), [Why is a tool missing or a call refused?](https://platform.casafari.com/docs/faq#tool-missing-or-refused).

## Where this is documented

- [Connect your assistant](https://platform.casafari.com/docs/connect)
- [list_servers](https://platform.casafari.com/docs/gateway/list_servers)

## Related questions

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All questions: https://platform.casafari.com/docs/faq#verify-connection