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> For a complete documentation index, see https://docs.heyreach.io/llms.txt.
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# AddCompanies

POST https://api//api/public/blacklist/AddCompanies
Content-Type: application/json

Add up to **100** companies to your workspace's blacklist in one call. Leads working at a blacklisted company are excluded from your campaigns.

Each entry takes one or both of the following, and **at least one is required**:

- **url** *(optional)*: a LinkedIn company URL, `linkedin.com/company/...`, with or without `https://` and `www.`. The URL is reduced to the company slug, so every spelling of the same company - scheme, host, query string, fragment, trailing slash, an `/about/` suffix - collapses onto one entry. School URLs and bare domains such as `acme.com` are rejected.
    
- **name** *(optional)*: a name-only entry, excluding by exact, case-insensitive company-name comparison. Returned as `BroadMatch`.
    

**The call returns 200 even when some entries do not land**, following the same partial-success model as 'AddLeads':

- **added**: how many entries were newly created.
    
- **entries**: one reference per input that produced a stored entry, correlated by **inputIndex** (its position in the list you submitted). **id** is what you pass to 'RemoveCompanies', and **created** is `false` when the company was already blacklisted.
    
- **duplicates**: identifiers that were already blacklisted, or repeated within this batch.
    
- **validationErrors**: one message per entry that was skipped, for example an invalid URL or an entry with no identifier at all.

Reference: https://docs.heyreach.io/hey-reach-api/blacklist/add-companies

## Request

### Headers

- `X-API-KEY` (string, optional) — API key header using this scheme. Example: "X-API-KEY: \{API\_KEY}"

### Body (application/json)

This endpoint expects an object.

- `companies` (list of object, required)
  - `url` (string, required)

## Response

### 200

OK

- `added` (integer, required)
- `duplicates` (list of string, required)
- `validationErrors` (list of any, required)
- `entries` (list of object, required)
  - `inputIndex` (integer, required)
  - `id` (integer, required)
  - `created` (boolean, required)

## Examples

**Request**

```json
{
  "companies": [
    {
      "url": "https://www.linkedin.com/company/acme-inc/"
    },
    {
      "url": "url"
    }
  ]
}
```

**Response**

```json
{
  "added": 1,
  "duplicates": [
    "https://www.linkedin.com/company/acme-inc/"
  ],
  "validationErrors": [
    {
      "key": "value"
    }
  ],
  "entries": [
    {
      "inputIndex": 0,
      "id": 201,
      "created": false
    },
    {
      "inputIndex": 1,
      "id": 202,
      "created": true
    }
  ]
}
```

**SDK Code**

```python
import requests

url = "https://api//api/public/blacklist/AddCompanies"

payload = { "companies": [{ "url": "https://www.linkedin.com/company/acme-inc/" }, { "url": "url" }] }
headers = {
    "X-API-KEY": "<string>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api//api/public/blacklist/AddCompanies';
const options = {
  method: 'POST',
  headers: {'X-API-KEY': '<string>', 'Content-Type': 'application/json'},
  body: '{"companies":[{"url":"https://www.linkedin.com/company/acme-inc/"},{"url":"url"}]}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api//api/public/blacklist/AddCompanies"

	payload := strings.NewReader("{\n  \"companies\": [\n    {\n      \"url\": \"https://www.linkedin.com/company/acme-inc/\"\n    },\n    {\n      \"url\": \"url\"\n    }\n  ]\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-API-KEY", "<string>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api//api/public/blacklist/AddCompanies")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '<string>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"companies\": [\n    {\n      \"url\": \"https://www.linkedin.com/company/acme-inc/\"\n    },\n    {\n      \"url\": \"url\"\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api//api/public/blacklist/AddCompanies")
  .header("X-API-KEY", "<string>")
  .header("Content-Type", "application/json")
  .body("{\n  \"companies\": [\n    {\n      \"url\": \"https://www.linkedin.com/company/acme-inc/\"\n    },\n    {\n      \"url\": \"url\"\n    }\n  ]\n}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api//api/public/blacklist/AddCompanies', [
  'body' => '{
  "companies": [
    {
      "url": "https://www.linkedin.com/company/acme-inc/"
    },
    {
      "url": "url"
    }
  ]
}',
  'headers' => [
    'Content-Type' => 'application/json',
    'X-API-KEY' => '<string>',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api//api/public/blacklist/AddCompanies");
var request = new RestRequest(Method.POST);
request.AddHeader("X-API-KEY", "<string>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"companies\": [\n    {\n      \"url\": \"https://www.linkedin.com/company/acme-inc/\"\n    },\n    {\n      \"url\": \"url\"\n    }\n  ]\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "X-API-KEY": "<string>",
  "Content-Type": "application/json"
]
let parameters = ["companies": [["url": "https://www.linkedin.com/company/acme-inc/"], ["url": "url"]]] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api//api/public/blacklist/AddCompanies")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```