> ## Documentation Index
> Fetch the complete documentation index at: https://developers.vivara.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Score the candidates for a listing so you know who to prioritize for a visit.

A listing can attract many candidates, and calling all of them takes time. Tenant scoring tells you, for each candidate, whether their income can cover the rent and whether they appear in a delinquency register. You use it to decide who to offer a visit to first.

## What you get

For each candidate, Vivara returns:

* A **solvency** result, based on the share of their income that would go to rent
* A **delinquency** result, when you have provided their ID number
* The **confidence tier** of the score: Basic, Declared or Accredited

The two results are independent. Vivara does not combine them into a single verdict, so you decide how to weigh them.

## What you need to send

Declared monthly income is the minimum. The more you send, the more Vivara can calculate and the more reliable the score is:

| You send | You get |
| - | - |
| Income | Solvency, at the Basic tier |
| Income, ID number and postal code | Solvency and delinquency, at the Declared tier |
| The above, plus the supporting documents | Solvency and delinquency, at the Accredited tier |

You can start with what you have and add data or documents later. The tier updates as you do.

## In this section

> [card] [How the score works](https://developers.vivara.io/tenant-scoring/how-the-score-works.md)
>
> What solvency and delinquency measure, and what each one needs.

> [card] [Confidence tiers](https://developers.vivara.io/tenant-scoring/confidence-tiers.md)
>
> How reliable a score is, and how a candidate moves up a tier.

> [card] [Sending candidate data](https://developers.vivara.io/tenant-scoring/sending-data.md)
>
> Which data and documents to send, and when.

> [card] [Reading the result](https://developers.vivara.io/tenant-scoring/reading-the-result.md)
>
> How to interpret each result and use it to prioritize.


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