# Collateral check

> **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).

**Check a loan's stated value against registered sales and comparables.**

You get: Check sheet per loan. It uses Comparables with Transactions, Cadastre and Property Sourcing, takes 75 tokens a run (€3.00 at €0.04 a token) and runs per loan. For: Bank, valuer or servicer.

**Status:** runs today.

## What it does

| # | Step | Product | Tokens |
|---|---|---|---|
| 1 | `comparables-transactions_get_comparables` | Comparables with Transactions | 65 |
| 2 | `cadastre_reference_value` | Cadastre | 5 |
| 3 | `property-sourcing_get_closing_prices` | Property Sourcing | 5 |

One run: **75 tokens**, €3.00. 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

Spain. Ask for another country and the plan names what is missing.

## Run in Claude

This playbook calls 3 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/)).

- Comparables with Transactions: `https://platform.casafari.com/mcp/comparables-transactions`
- Property Sourcing: `https://platform.casafari.com/mcp/property-sourcing`
- Cadastre: `https://platform.casafari.com/mcp/cadastre`

In Claude Code:

```bash
claude mcp add --transport http casafari-comparables-transactions https://platform.casafari.com/mcp/comparables-transactions
claude mcp add --transport http casafari-property-sourcing https://platform.casafari.com/mcp/property-sourcing
claude mcp add --transport http casafari-cadastre https://platform.casafari.com/mcp/cadastre
```

Then ask:

```text
Run the collateral check playbook for Spain: call comparables-transactions_get_comparables, then cadastre_reference_value, then property-sourcing_get_closing_prices, 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. Comparables with Transactions, 65 tokens a call
curl -X POST https://platform.casafari.com/v1/comparables-transactions/search \
  -H "Authorization: Bearer $CASAFARI_API_KEY"

# 2. Cadastre, 5 tokens a call
# MCP only for now: call cadastre_reference_value in your assistant.

# 3. Property Sourcing, 5 tokens a call
curl -X GET https://platform.casafari.com/v1/property-sourcing/properties/{property_id}/closing-prices \
  -H "Authorization: Bearer $CASAFARI_API_KEY"
```

## Other playbooks

- [Seller pitch pack](/playbooks/seller-pitch-pack): Win the listing: show the owner what the home is really worth.
- [Valuation in a minute](/playbooks/quick-valuation): An indicative value with comparables, before the visit.
- [Portfolio watch](/playbooks/portfolio-watch): Weekly: which homes near ours cut prices, sold or were relisted.
- [Portfolio revaluation](/playbooks/portfolio-revaluation): Revalue a book of homes every month.
- [All playbooks and the calculator](/playbooks)