# Fact of the week

> **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).

**One checkable market number a week, with how to check it.**

You get: Figure, chart and method note. It uses Area Insights and Property Sourcing, takes 95 tokens a run (€3.80 at €0.04 a token) and runs weekly. For: Research, media or public sector.

**Status:** runs today.

## What it does

| # | Step | Product | Tokens |
|---|---|---|---|
| 1 | `area-insights_get_sales_average_prices` | Area Insights | 10 |
| 2 | `area-insights_count_sales_by_type` | Area Insights | 10 |
| 3 | `area-insights_get_time_series_data` | Area Insights | 25 |
| 4 | `property-sourcing_search` | Property Sourcing | 50 |

One run: **95 tokens**, €3.80. Each call costs the same over MCP and REST, so the run always costs what the table says. [How many tokens your volume needs](/playbooks), and [plans and credits](/pricing).

## Where it runs

Every country the products it uses cover. The plan names a country that one of them does not.

## Run in Claude

This playbook calls 2 Casafari MCP servers. Add each to Claude, ChatGPT or any MCP client, and sign in the first time you use them (a Free account, no card, is created then; [console](https://platform.casafari.com/console/)).

- Area Insights: `https://platform.casafari.com/mcp/area-insights`
- Property Sourcing: `https://platform.casafari.com/mcp/property-sourcing`

In Claude Code:

```bash
claude mcp add --transport http casafari-area-insights https://platform.casafari.com/mcp/area-insights
claude mcp add --transport http casafari-property-sourcing https://platform.casafari.com/mcp/property-sourcing
```

Then ask:

```text
Run the fact of the week playbook for Spain every week: call area-insights_get_sales_average_prices, then area-insights_count_sales_by_type, then area-insights_get_time_series_data, then property-sourcing_search, in that order, and tell me what each step cost in tokens.
```

## Get the API calls

The same steps as REST calls, in order. Create a platform API key in the console and export it as `CASAFARI_API_KEY`; each call takes the parameters its operation documents in the [REST reference](/docs/rest).

```bash
# 1. Area Insights, 10 tokens a call
curl -X POST https://platform.casafari.com/v1/area-insights/sales/average-prices \
  -H "Authorization: Bearer $CASAFARI_API_KEY"

# 2. Area Insights, 10 tokens a call
curl -X POST https://platform.casafari.com/v1/area-insights/sales/count-by-type \
  -H "Authorization: Bearer $CASAFARI_API_KEY"

# 3. Area Insights, 25 tokens a call
curl -X POST https://platform.casafari.com/v1/area-insights/time-series \
  -H "Authorization: Bearer $CASAFARI_API_KEY"

# 4. Property Sourcing, 50 tokens a call
curl -X POST https://platform.casafari.com/v1/property-sourcing/searches \
  -H "Authorization: Bearer $CASAFARI_API_KEY"
```

## Other playbooks

- [Off-portal monitor](/playbooks/off-portal-monitor): Which homes appear only on agency websites, or there first.
- [Area guides with live figures](/playbooks/area-guides): Neighbourhood pages that stay true every month.
- [Market entry brief](/playbooks/market-entry): Should we enter this city: prices, momentum, liquidity, registered sales.
- [Market risk monitor](/playbooks/market-risk): Price, stock and time-on-market trends for every region in the book.
- [All playbooks and the calculator](/playbooks)