> 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.

# Autocomplete business identities

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

Search for business identities using partial name matching. Returns matching businesses with names, addresses, people, and entity type.

Reference: https://docs.middesk.com/api-reference/prefill/autocomplete/identities/autocomplete-business-identities

## 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) — Business name to search for (minimum 3 characters)
- `entity_type` (enum, optional) — Entity type filter
  - Allowed values: `LLC`, `CORPORATION`, `NON_PROFIT`, `PARTNERSHIP`, `TRUST`
- `addresses` (list of BusinessIdentityRequestParamAddressesItem, optional) — Address filters

## Response

### 200

autocomplete results

- `data` (list of BusinessIdentity, optional)

## Errors

### 422 Autocomplete Business Identities Request Unprocessable Entity Error

invalid request - name too short

- `errors` (list of ErrorResponseErrorsItem, required)

## Types

### BusinessIdentityRequestParamAddressesItem

- `address_line1` (string, optional)
- `city` (string, optional)
- `state` (string, optional)
- `postal_code` (string, optional)

### BusinessIdentity

Business result from autocomplete search

- `id` (string, optional) — Unique identifier for this autocomplete result
- `names` (list of BusinessIdentityNamesItem, optional) — Business names (legal or DBA)
- `addresses` (list of BusinessIdentityAddressesItem, optional) — Known business addresses
- `people` (list of BusinessIdentityPeopleItem, optional) — Associated persons
- `entity_type` (enum, optional, nullable) — Business entity type
  - Allowed values: `LLC`, `CORPORATION`, `NON_PROFIT`, `PARTNERSHIP`, `TRUST`

### ErrorResponseErrorsItem

- `message` (string, required)
- `parameter` (string, optional) — Request parameter associated with the error, when applicable

### BusinessIdentityNamesItem

- `name` (string, optional)
- `type` (enum, optional)
  - Allowed values: `legal`, `dba`

### BusinessIdentityAddressesItem

- `full_address` (string, optional)
- `address_line1` (string, optional)
- `address_line2` (string, optional, nullable)
- `city` (string, optional)
- `state` (string, optional)
- `postal_code` (string, optional)
- `labels` (list of string, optional)

### BusinessIdentityPeopleItem

- `name` (string, optional)
- `titles` (list of string, optional)

## Examples

### Basic Autocomplete

**Request**

```json
{
  "name": "Dunder Mifflin"
}
```

**Response**

```json
{
  "data": [
    {
      "id": "35a0fe9a-6586-4d27-a980-c4c09511e273",
      "names": [
        {
          "name": "Dunder Mifflin Paper Company, Inc.",
          "type": "legal"
        }
      ],
      "addresses": [
        {
          "full_address": "1725 Slough Ave, Scranton, PA 18503",
          "address_line1": "1725 Slough Ave",
          "city": "Scranton",
          "state": "PA",
          "postal_code": "18503",
          "labels": [
            "headquarters"
          ]
        }
      ],
      "people": [
        {
          "name": "Michael Scott",
          "titles": [
            "Regional Manager"
          ]
        }
      ],
      "entity_type": "CORPORATION"
    }
  ]
}
```

**SDK Code**

```python Basic Autocomplete
import requests

url = "https://api.middesk.com/v1/identities/autocomplete"

payload = { "name": "Dunder Mifflin" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript Basic Autocomplete
const url = 'https://api.middesk.com/v1/identities/autocomplete';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"name":"Dunder Mifflin"}'
};

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

```go Basic Autocomplete
package main

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

func main() {

	url := "https://api.middesk.com/v1/identities/autocomplete"

	payload := strings.NewReader("{\n  \"name\": \"Dunder Mifflin\"\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 Basic Autocomplete
require 'uri'
require 'net/http'

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

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\": \"Dunder Mifflin\"\n}"

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

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

HttpResponse<String> response = Unirest.post("https://api.middesk.com/v1/identities/autocomplete")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"Dunder Mifflin\"\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.middesk.com/v1/identities/autocomplete', [
  'body' => '{
  "name": "Dunder Mifflin"
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp Basic Autocomplete
using RestSharp;

var client = new RestClient("https://api.middesk.com/v1/identities/autocomplete");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"name\": \"Dunder Mifflin\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Basic Autocomplete
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = ["name": "Dunder Mifflin"] as [String : Any]

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

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

### Autocomplete With Filters

**Request**

```json
{
  "name": "Dunder Mifflin",
  "entity_type": "CORPORATION",
  "addresses": [
    {
      "city": "Scranton",
      "state": "PA"
    }
  ]
}
```

**Response**

```json
{
  "data": [
    {
      "id": "35a0fe9a-6586-4d27-a980-c4c09511e273",
      "names": [
        {
          "name": "Dunder Mifflin Paper Company, Inc.",
          "type": "legal"
        }
      ],
      "addresses": [
        {
          "full_address": "1725 Slough Ave, Scranton, PA 18503",
          "address_line1": "1725 Slough Ave",
          "city": "Scranton",
          "state": "PA",
          "postal_code": "18503",
          "labels": [
            "headquarters"
          ]
        }
      ],
      "people": [
        {
          "name": "Michael Scott",
          "titles": [
            "Regional Manager"
          ]
        }
      ],
      "entity_type": "CORPORATION"
    }
  ]
}
```

**SDK Code**

```python Autocomplete With Filters
import requests

url = "https://api.middesk.com/v1/identities/autocomplete"

payload = {
    "name": "Dunder Mifflin",
    "entity_type": "CORPORATION",
    "addresses": [
        {
            "city": "Scranton",
            "state": "PA"
        }
    ]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript Autocomplete With Filters
const url = 'https://api.middesk.com/v1/identities/autocomplete';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"name":"Dunder Mifflin","entity_type":"CORPORATION","addresses":[{"city":"Scranton","state":"PA"}]}'
};

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

```go Autocomplete With Filters
package main

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

func main() {

	url := "https://api.middesk.com/v1/identities/autocomplete"

	payload := strings.NewReader("{\n  \"name\": \"Dunder Mifflin\",\n  \"entity_type\": \"CORPORATION\",\n  \"addresses\": [\n    {\n      \"city\": \"Scranton\",\n      \"state\": \"PA\"\n    }\n  ]\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 Autocomplete With Filters
require 'uri'
require 'net/http'

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

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\": \"Dunder Mifflin\",\n  \"entity_type\": \"CORPORATION\",\n  \"addresses\": [\n    {\n      \"city\": \"Scranton\",\n      \"state\": \"PA\"\n    }\n  ]\n}"

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

```java Autocomplete With Filters
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.middesk.com/v1/identities/autocomplete")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"Dunder Mifflin\",\n  \"entity_type\": \"CORPORATION\",\n  \"addresses\": [\n    {\n      \"city\": \"Scranton\",\n      \"state\": \"PA\"\n    }\n  ]\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.middesk.com/v1/identities/autocomplete', [
  'body' => '{
  "name": "Dunder Mifflin",
  "entity_type": "CORPORATION",
  "addresses": [
    {
      "city": "Scranton",
      "state": "PA"
    }
  ]
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp Autocomplete With Filters
using RestSharp;

var client = new RestClient("https://api.middesk.com/v1/identities/autocomplete");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"name\": \"Dunder Mifflin\",\n  \"entity_type\": \"CORPORATION\",\n  \"addresses\": [\n    {\n      \"city\": \"Scranton\",\n      \"state\": \"PA\"\n    }\n  ]\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Autocomplete With Filters
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "name": "Dunder Mifflin",
  "entity_type": "CORPORATION",
  "addresses": [
    [
      "city": "Scranton",
      "state": "PA"
    ]
  ]
] as [String : Any]

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

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

### Basic autocomplete

**Request**

```json
{
  "name": "Dunder Mifflin"
}
```

**Response**

```json
{
  "data": [
    {
      "id": "35a0fe9a-6586-4d27-a980-c4c09511e273",
      "names": [
        {
          "name": "Dunder Mifflin Paper Company, Inc.",
          "type": "legal"
        }
      ],
      "addresses": [
        {
          "full_address": "1725 Slough Ave, Scranton, PA 18503",
          "address_line1": "1725 Slough Ave",
          "city": "Scranton",
          "state": "PA",
          "postal_code": "18503",
          "labels": [
            "headquarters"
          ]
        }
      ],
      "people": [
        {
          "name": "Michael Scott",
          "titles": [
            "Regional Manager"
          ]
        }
      ],
      "entity_type": "CORPORATION"
    }
  ]
}
```

**SDK Code**

```python Basic autocomplete
import requests

url = "https://api.middesk.com/v1/identities/autocomplete"

payload = { "name": "Dunder Mifflin" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript Basic autocomplete
const url = 'https://api.middesk.com/v1/identities/autocomplete';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"name":"Dunder Mifflin"}'
};

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

```go Basic autocomplete
package main

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

func main() {

	url := "https://api.middesk.com/v1/identities/autocomplete"

	payload := strings.NewReader("{\n  \"name\": \"Dunder Mifflin\"\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 Basic autocomplete
require 'uri'
require 'net/http'

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

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\": \"Dunder Mifflin\"\n}"

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

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

HttpResponse<String> response = Unirest.post("https://api.middesk.com/v1/identities/autocomplete")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"Dunder Mifflin\"\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.middesk.com/v1/identities/autocomplete', [
  'body' => '{
  "name": "Dunder Mifflin"
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp Basic autocomplete
using RestSharp;

var client = new RestClient("https://api.middesk.com/v1/identities/autocomplete");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"name\": \"Dunder Mifflin\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Basic autocomplete
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = ["name": "Dunder Mifflin"] as [String : Any]

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

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

### Autocomplete with filters

**Request**

```json
{
  "name": "Dunder Mifflin"
}
```

**Response**

```json
{
  "data": [
    {
      "id": "35a0fe9a-6586-4d27-a980-c4c09511e273",
      "names": [
        {
          "name": "Dunder Mifflin Paper Company, Inc.",
          "type": "legal"
        },
        {
          "name": "Dunder Mifflin",
          "type": "dba"
        }
      ],
      "addresses": [
        {
          "full_address": "1725 Slough Ave, Scranton, PA 18503",
          "address_line1": "1725 Slough Ave",
          "city": "Scranton",
          "state": "PA",
          "postal_code": "18503",
          "labels": [
            "headquarters"
          ]
        }
      ],
      "people": [
        {
          "name": "Michael Scott",
          "titles": [
            "Regional Manager"
          ]
        },
        {
          "name": "Dwight Schrute",
          "titles": [
            "Assistant to the Regional Manager"
          ]
        }
      ],
      "entity_type": "CORPORATION"
    }
  ]
}
```

**SDK Code**

```python Autocomplete with filters
import requests

url = "https://api.middesk.com/v1/identities/autocomplete"

payload = { "name": "Dunder Mifflin" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript Autocomplete with filters
const url = 'https://api.middesk.com/v1/identities/autocomplete';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"name":"Dunder Mifflin"}'
};

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

```go Autocomplete with filters
package main

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

func main() {

	url := "https://api.middesk.com/v1/identities/autocomplete"

	payload := strings.NewReader("{\n  \"name\": \"Dunder Mifflin\"\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 Autocomplete with filters
require 'uri'
require 'net/http'

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

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\": \"Dunder Mifflin\"\n}"

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

```java Autocomplete with filters
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.middesk.com/v1/identities/autocomplete")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"Dunder Mifflin\"\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.middesk.com/v1/identities/autocomplete', [
  'body' => '{
  "name": "Dunder Mifflin"
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp Autocomplete with filters
using RestSharp;

var client = new RestClient("https://api.middesk.com/v1/identities/autocomplete");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"name\": \"Dunder Mifflin\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Autocomplete with filters
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = ["name": "Dunder Mifflin"] as [String : Any]

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

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