> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.middesk.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.middesk.com/_mcp/server.

# Create a signal

POST https://api.middesk.com/v1/signals
Content-Type: application/json

Reference: https://docs.middesk.com/api-reference/business-verification/signals/create-signal

## Authentication

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

## Request

### Body (application/json)

This endpoint expects an object.

- `name` (string, required) — Company name
- `addresses` (list of string, required) — Array of addresses
- `tin` (string, optional) — Tax identification number
- `external_id` (string, optional) — External identifier
- `model_slug` (string, optional) — Scoring model slug
- `people` (list of string, optional) — Array of people names

## Response

### 201

signal created

- `any`

## Errors

### 422 Create Signal Request Unprocessable Entity Error

invalid request

- `any`

## Examples

**Request**

```json
{
  "name": "Acme Corporation",
  "addresses": [
    "123 Main Street, San Francisco, CA 94105"
  ],
  "tin": "12-3456789",
  "external_id": "ext-12345",
  "model_slug": "verify"
}
```

**Response**

```json
{
  "addresses": [
    "123 Main Street, San Francisco, CA 94105"
  ],
  "batch_id": "a7b8c9d0-e1f2-3456-0123-456789abcdef",
  "created_at": "2025-01-07T12:00:00.000Z",
  "external_id": "ext-12345",
  "id": "f6a7b8c9-d0e1-2345-f012-3456789abcde",
  "model_slug": "verify",
  "name": "Acme Corporation",
  "object": "signal",
  "reasons": [
    {
      "category": "identity",
      "code": "V101",
      "description": "Business name verified",
      "group": "name"
    }
  ],
  "requester": {
    "id": "b8c9d0e1-f2a3-4567-1234-56789abcdef0",
    "name": "Example Account",
    "type": "Account"
  },
  "score": 0.85,
  "tin": "12-3456789"
}
```

**SDK Code**

```python Signal request
import requests

url = "https://api.middesk.com/v1/signals"

payload = {
    "name": "Acme Corporation",
    "addresses": ["123 Main Street, San Francisco, CA 94105"],
    "tin": "12-3456789",
    "external_id": "ext-12345",
    "model_slug": "verify"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript Signal request
const url = 'https://api.middesk.com/v1/signals';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"name":"Acme Corporation","addresses":["123 Main Street, San Francisco, CA 94105"],"tin":"12-3456789","external_id":"ext-12345","model_slug":"verify"}'
};

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

```go Signal request
package main

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

func main() {

	url := "https://api.middesk.com/v1/signals"

	payload := strings.NewReader("{\n  \"name\": \"Acme Corporation\",\n  \"addresses\": [\n    \"123 Main Street, San Francisco, CA 94105\"\n  ],\n  \"tin\": \"12-3456789\",\n  \"external_id\": \"ext-12345\",\n  \"model_slug\": \"verify\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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 Signal request
require 'uri'
require 'net/http'

url = URI("https://api.middesk.com/v1/signals")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"Acme Corporation\",\n  \"addresses\": [\n    \"123 Main Street, San Francisco, CA 94105\"\n  ],\n  \"tin\": \"12-3456789\",\n  \"external_id\": \"ext-12345\",\n  \"model_slug\": \"verify\"\n}"

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

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

HttpResponse<String> response = Unirest.post("https://api.middesk.com/v1/signals")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"Acme Corporation\",\n  \"addresses\": [\n    \"123 Main Street, San Francisco, CA 94105\"\n  ],\n  \"tin\": \"12-3456789\",\n  \"external_id\": \"ext-12345\",\n  \"model_slug\": \"verify\"\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.middesk.com/v1/signals', [
  'body' => '{
  "name": "Acme Corporation",
  "addresses": [
    "123 Main Street, San Francisco, CA 94105"
  ],
  "tin": "12-3456789",
  "external_id": "ext-12345",
  "model_slug": "verify"
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp Signal request
using RestSharp;

var client = new RestClient("https://api.middesk.com/v1/signals");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"name\": \"Acme Corporation\",\n  \"addresses\": [\n    \"123 Main Street, San Francisco, CA 94105\"\n  ],\n  \"tin\": \"12-3456789\",\n  \"external_id\": \"ext-12345\",\n  \"model_slug\": \"verify\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Signal request
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "name": "Acme Corporation",
  "addresses": ["123 Main Street, San Francisco, CA 94105"],
  "tin": "12-3456789",
  "external_id": "ext-12345",
  "model_slug": "verify"
] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.middesk.com/v1/signals")! 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()
```