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

# List disallowed contacts

> List contacts on the blacklist for certain interactions with your account

## Overview

Through this method, you can list the contacts that are on the disallowed list (blacklist) for certain interactions with your account.

***

## Attributes

### Header

<ParamField path="instanceId" type="string" required>
  Your instance ID. Available in the Z-API panel under **Instances**.
</ParamField>

<ParamField path="token" type="string" required>
  Your Z-API instance token.
</ParamField>

### Query Parameters

<ParamField query="type" type="string" required>
  Defines the blocking scope: `lastSeen`, `photo`, `description` or `groupAdd`
</ParamField>

***

## Response

### 200

<ResponseField name="disallowedContacts" type="array">
  List of blocked phone numbers
</ResponseField>

```json theme={"theme":{"light":"github-light","dark":"poimandres"}}
{
  "disallowedContacts": [
    "554411111111",
    "554422222222"
  ]
}
```

### 405

Make sure you are correctly sending the method specification, that is, verify that you sent POST or GET as specified at the beginning of this topic.

### 415

If you receive a 415 error, make sure to add the "Content-Type" header to your request, which in most cases is "application/json".