> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.monite.com/v2023-09-01/api/onboarding-documents/post-entities-id-documents/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.monite.com/_mcp/server.

# Update entity onboarding documents

POST https://api.sandbox.monite.com/v1/entities/{entity_id}/documents
Content-Type: multipart/form-data

Deprecated. Use `POST /onboarding_documents` instead. Update the onboarding documents of an entity.

Reference: https://docs.monite.com/api/onboarding-documents/post-entities-id-documents

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Servers

- `https://api.sandbox.monite.com/v1` (sandbox, default)
- `https://api.monite.com/v1` (eu_production)
- `https://us.api.monite.com/v1` (na_production)

## Request

### Path parameters

- `entity_id` (string, required)

### Headers

- `x-monite-version` (string, required)

### Body (multipart/form-data)

This endpoint expects a multipart form with multiple files.

- `verification_document_front` (file, optional)
- `verification_document_back` (file, optional)
- `additional_verification_document_front` (file, optional)
- `additional_verification_document_back` (file, optional)
- `bank_account_ownership_verification` (files, optional)
- `company_license` (files, optional)
- `company_memorandum_of_association` (files, optional)
- `company_ministerial_decree` (files, optional)
- `company_registration_verification` (files, optional)
- `company_tax_id_verification` (files, optional)
- `proof_of_registration` (files, optional)

## Errors

### 422 Post Entities ID Documents Request Unprocessable Entity Error

Validation Error

- `detail` (list of ValidationError, optional)

### 500 Post Entities ID Documents Request Internal Server Error

Internal Server Error

- `error` (ErrorSchema, required)

## Types

### ValidationError

- `loc` (list of ValidationErrorLocItem, required)
- `msg` (string, required)
- `type` (string, required)

### ErrorSchema

- `message` (string, required)

### ValidationErrorLocItem

## Examples

**Request**

```json
{
  "verification_document_front": "<file: <file1>>",
  "verification_document_back": "<file: <file1>>",
  "additional_verification_document_front": "<file: <file1>>",
  "additional_verification_document_back": "<file: <file1>>",
  "bank_account_ownership_verification": [],
  "company_license": [],
  "company_memorandum_of_association": [],
  "company_ministerial_decree": [],
  "company_registration_verification": [],
  "company_tax_id_verification": [],
  "proof_of_registration": []
}
```

**SDK Code**

```python
import requests

url = "https://api.sandbox.monite.com/v1/entities/entity_id/documents"

files = {
    "verification_document_front": "open('<file1>', 'rb')",
    "verification_document_back": "open('<file1>', 'rb')",
    "additional_verification_document_front": "open('<file1>', 'rb')",
    "additional_verification_document_back": "open('<file1>', 'rb')"
}
headers = {
    "x-monite-version": "2023-09-01",
    "Authorization": "Bearer <token>"
}

response = requests.post(url, files=files, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.sandbox.monite.com/v1/entities/entity_id/documents';
const form = new FormData();
form.append('verification_document_front', '<file1>');
form.append('verification_document_back', '<file1>');
form.append('additional_verification_document_front', '<file1>');
form.append('additional_verification_document_back', '<file1>');

const options = {
  method: 'POST',
  headers: {'x-monite-version': '2023-09-01', Authorization: 'Bearer <token>'}
};

options.body = form;

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.sandbox.monite.com/v1/entities/entity_id/documents"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"verification_document_front\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"verification_document_back\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"additional_verification_document_front\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"additional_verification_document_back\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001--\r\n")

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

	req.Header.Add("x-monite-version", "2023-09-01")
	req.Header.Add("Authorization", "Bearer <token>")

	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.sandbox.monite.com/v1/entities/entity_id/documents")

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

request = Net::HTTP::Post.new(url)
request["x-monite-version"] = '2023-09-01'
request["Authorization"] = 'Bearer <token>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"verification_document_front\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"verification_document_back\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"additional_verification_document_front\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"additional_verification_document_back\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001--\r\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.sandbox.monite.com/v1/entities/entity_id/documents")
  .header("x-monite-version", "2023-09-01")
  .header("Authorization", "Bearer <token>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"verification_document_front\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"verification_document_back\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"additional_verification_document_front\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"additional_verification_document_back\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001--\r\n")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.sandbox.monite.com/v1/entities/entity_id/documents', [
  'multipart' => [
    [
        'name' => 'verification_document_front',
        'filename' => '<file1>',
        'contents' => null
    ],
    [
        'name' => 'verification_document_back',
        'filename' => '<file1>',
        'contents' => null
    ],
    [
        'name' => 'additional_verification_document_front',
        'filename' => '<file1>',
        'contents' => null
    ],
    [
        'name' => 'additional_verification_document_back',
        'filename' => '<file1>',
        'contents' => null
    ]
  ]
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'x-monite-version' => '2023-09-01',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.sandbox.monite.com/v1/entities/entity_id/documents");
var request = new RestRequest(Method.POST);
request.AddHeader("x-monite-version", "2023-09-01");
request.AddHeader("Authorization", "Bearer <token>");
request.AddParameter("undefined", "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"verification_document_front\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"verification_document_back\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"additional_verification_document_front\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"additional_verification_document_back\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001--\r\n", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "x-monite-version": "2023-09-01",
  "Authorization": "Bearer <token>"
]
let parameters = [
  [
    "name": "verification_document_front",
    "fileName": "<file1>"
  ],
  [
    "name": "verification_document_back",
    "fileName": "<file1>"
  ],
  [
    "name": "additional_verification_document_front",
    "fileName": "<file1>"
  ],
  [
    "name": "additional_verification_document_back",
    "fileName": "<file1>"
  ]
]

let boundary = "---011000010111000001101001"

var body = ""
var error: NSError? = nil
for param in parameters {
  let paramName = param["name"]!
  body += "--\(boundary)\r\n"
  body += "Content-Disposition:form-data; name=\"\(paramName)\""
  if let filename = param["fileName"] {
    let contentType = param["content-type"]!
    let fileContent = String(contentsOfFile: filename, encoding: String.Encoding.utf8)
    if (error != nil) {
      print(error as Any)
    }
    body += "; filename=\"\(filename)\"\r\n"
    body += "Content-Type: \(contentType)\r\n\r\n"
    body += fileContent
  } else if let paramValue = param["value"] {
    body += "\r\n\r\n\(paramValue)"
  }
}

let request = NSMutableURLRequest(url: NSURL(string: "https://api.sandbox.monite.com/v1/entities/entity_id/documents")! 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()
```