# Why does AgentGraph AI need a verified business, and how does verification work?

> **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).

AgentGraph AI holds personal contact data of real estate agents, so on the self-serve platform only a verified business may call its tools; no other product needs verification.

Verification works in one of two ways:

- **With an EU VAT id:** it is automatic. EU VIES confirms the number, and the registered name must match.
- **Without one:** Casafari staff review the application.

Until the business is verified, the [AgentGraph AI](https://developers.casafari.com/docs/agentgraph) tools are listed, but a call answers `verification_required` with a link to the verification page. The error type is described at https://platform.casafari.com/errors/verification_required. Where you enter the VAT id and how long a review takes are not published; Casafari can answer: https://www.casafari.com/

Casafari clients on the Casafari MCP server get AgentGraph AI through their subscription; see [Why is a tool missing from `tools/list`, or a call refused?](https://developers.casafari.com/docs/faq/tool-missing-or-refused) See also [What is AgentGraph AI?](https://developers.casafari.com/docs/faq/what-is-agentgraph) and [How do I find agencies or agents to partner with in a German city?](https://developers.casafari.com/docs/faq/example-find-agencies-germany)

## Where this is documented

- [AgentGraph AI](https://developers.casafari.com/docs/agentgraph)

## Related questions

- [Which products does Casafari offer over MCP and REST, and how many tools are there?](https://developers.casafari.com/docs/faq/which-products)
- [What is the Location Lookup product on the Casafari platform?](https://developers.casafari.com/docs/faq/what-is-location-lookup)
- [What is Area Insights?](https://developers.casafari.com/docs/faq/what-is-area-insights)
- [What does Comparables & Valuation do?](https://developers.casafari.com/docs/faq/what-is-comparables-valuation)
- [What is AgentGraph AI?](https://developers.casafari.com/docs/faq/what-is-agentgraph)

All questions: https://developers.casafari.com/docs/faq#agentgraph-verified-business