# Chart asking rent per m² by district

> **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).

**For BI engineers building a rent benchmark panel for an expansion team.** Call market_snapshot with a place, type and operation to chart the asking price per m² distribution, size bands, districts and a three-year monthly average.

> How do I get asking rent per m² by district and its trend as data for a dashboard?

## What is the problem?

Analysts want asking rent per m² by district, by size band and over time, as data they can chart, with the count behind every figure.

## How does it work?

1. Call `market_snapshot` ([tool](https://developers.casafari.com/docs/claro/market_snapshot)) or `POST /v1/claro/market` ([operation](https://developers.casafari.com/docs/rest/claro/market-snapshot)) with a `question` in plain words or `criteria` as data: place, types, operation and an optional size range. Other criteria are ignored.
2. Read the criteria as understood, then `insights`: charts as data, each with a one-sentence answer, its count, scope, source and date.
3. Chart the asking price per m² as a distribution with its median and middle half, by size band, by district or town, and for one town or province the monthly average over three years with the change in a year, the properties on the market and their days on the market (Casafari Area Insights).
4. Label every figure as an asking price, not an agreed one, and show the count each chart rests on.

```
curl https://platform.casafari.com/v1/claro/market \
  -H "Authorization: Bearer $CASAFARI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"question": "what does retail rent for in Chamberí?"}'
```

## What do you get?

Figures computed from every active property of that kind and place, each unit counted once, as charts a BI tool can load, with the criteria echoed back so the panel shows what was measured.

## What are the limits?

At least 10 properties, or no figures. Asking prices only. Criteria beyond place, types, operation and size range are ignored. Each response carries `Claro-Version`, so a panel can record which dated version produced a snapshot ([versioning](https://developers.casafari.com/docs/claro/faq#claro-version-header)).

## Related use cases

- [Score every match with your own model](https://developers.casafari.com/docs/claro/use-cases/score-every-match-with-your-own-model)
- [Load every matching premises into your CRM nightly](https://developers.casafari.com/docs/claro/use-cases/nightly-pipeline-into-crm-or-bi)
- [Location figures for any point in Spain](https://developers.casafari.com/docs/claro/use-cases/location-figures-for-any-point)
- [Keyword search from a form with no model](https://developers.casafari.com/docs/claro/use-cases/keyword-search-from-a-form)
- [Claro AI FAQ](https://developers.casafari.com/docs/claro/faq)