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

# Add a company's SEC legal and former names as entity aliases

POST https://api.aventure.vc/v1/sec/entities/{entityId}/aliases

Resolves a public company by ticker (preferred) or name and adds its SEC legal name and former names to the target entity as `relatedLegal` aliases, stamped source `sec-edgar`. Names already present as the entity's brand/legal name or an existing alias are skipped. Returns the aliases newly added.

Reference: https://docs.aventure.vc/api-reference/a-venture-api/sec/map-aliases

## Authentication

- `Authorization` header (bearer token, required) — User bearer token: Supabase or Clerk session JWT, Clerk OAuth access token, or Clerk personal API key
- `X-API-Key` header (required) — Admin API key for system-to-system write operations

## Request

### Path parameters

- `entityId` (string, required) — Canonical entity UUID to add aliases to

### Query parameters

- `ticker` (string, optional) — Trading ticker symbol (preferred resolver)
- `name` (string, optional) — Company name query (used when no ticker is given)
- `sourceType` (enum, required) — Write provenance source type.
  - Allowed values: `requestChangeForm`, `newsArticle`, `blogArticle`, `firstPartyWebsite`, `relatedPartyWebsite`, `thirdPartyWebsite`, `llm`, `aventureStaff`
- `sourceDetail` (string, required) — Source detail or reviewer reference for the write.
- `sourceProvider` (string, optional) — Provider name for provider-native IDs or slugs.
- `sourceProviderId` (string, optional) — Provider-native source ID.
- `sourceProviderSlug` (string, optional) — Provider-native source slug.
- `actorType` (enum, optional) — Actor type; inferred as agent when agentChassis and agentModel are supplied, or as employee from an authenticated user JWT session.
  - Allowed values: `agent`, `employee`
- `agentChassis` (string, optional) — Agent chassis token for agent-authored writes.
- `agentModel` (string, optional) — Agent model id for agent-authored writes.

## Response

### 201

Created

- `list of object`
  - `name` (string, required) — Alternate name text
  - `displayable` (boolean, optional, nullable) — Show this alias in public name displays.
  - `type` (enum, optional, nullable) — Alias type classification
    - Allowed values: `alternativeDba`, `relatedLegal`

## Examples

**Response**

```json
[
  {
    "name": "Bun",
    "displayable": true,
    "type": "alternativeDba"
  }
]
```

**SDK Code**

```python
import requests

url = "https://api.aventure.vc/v1/sec/entities/entityId/aliases"

querystring = {"actorType":"agent","agentChassis":"codex-cli","name":"NVIDIA","sourceDetail":"aventure.vc","sourceProvider":"TechCrunch","sourceProviderId":"tc-2026-05-20-example-round","sourceProviderSlug":"example-round","sourceType":"requestChangeForm","ticker":"AAPL"}

headers = {"Authorization": "Bearer <token>"}

response = requests.post(url, headers=headers, params=querystring)

print(response.json())
```

```javascript
const url = 'https://api.aventure.vc/v1/sec/entities/entityId/aliases?actorType=agent&agentChassis=codex-cli&name=NVIDIA&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm&ticker=AAPL';
const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

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"
	"net/http"
	"io"
)

func main() {

	url := "https://api.aventure.vc/v1/sec/entities/entityId/aliases?actorType=agent&agentChassis=codex-cli&name=NVIDIA&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm&ticker=AAPL"

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

	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.aventure.vc/v1/sec/entities/entityId/aliases?actorType=agent&agentChassis=codex-cli&name=NVIDIA&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm&ticker=AAPL")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'

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.aventure.vc/v1/sec/entities/entityId/aliases?actorType=agent&agentChassis=codex-cli&name=NVIDIA&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm&ticker=AAPL")
  .header("Authorization", "Bearer <token>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.aventure.vc/v1/sec/entities/entityId/aliases?actorType=agent&agentChassis=codex-cli&name=NVIDIA&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm&ticker=AAPL', [
  'headers' => [
    'Authorization' => 'Bearer <token>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.aventure.vc/v1/sec/entities/entityId/aliases?actorType=agent&agentChassis=codex-cli&name=NVIDIA&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm&ticker=AAPL");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Authorization": "Bearer <token>"]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.aventure.vc/v1/sec/entities/entityId/aliases?actorType=agent&agentChassis=codex-cli&name=NVIDIA&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm&ticker=AAPL")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers

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()
```