> 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.

# Attach a unique id to a person

POST https://api.aventure.vc/v1/people/{personId}/unique-ids
Content-Type: application/json

Attaches an external identifier to the owner. idType accepts a canonical token or alias; the value is normalized and validated against the type's format pattern and owner scope. Rejects a duplicate (idType, identifier) already mapped to this owner. Provenance query parameters are required for audit.

Reference: https://docs.aventure.vc/api-reference/a-venture-api/unique-i-ds/create-person-unique-id

## 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

- `personId` (string, required) — Canonical person UUID.

### Query parameters

- `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.

### Body (application/json)

- `idType` (string, optional, nullable) — Identifier type token, for example ein, secCik, or ticker.
- `identifier` (string, optional, nullable) — Identifier value as issued by the registry.
- `source` (string, optional, nullable) — Optional attribution source label for the mapping.

## Response

### 201

Created

- `createdAt` (datetime, required) — Row creation timestamp.
- `id` (integer, required) — Unique-id row id.
- `idType` (enum, required) — Identifier type.
  - Allowed values: `ein`, `secCik`, `ticker`, `lei`, `duns`, `isin`, `cusip`, `crd`, `orcid`
- `identifier` (string, required) — Identifier value as issued by the registry (normalized per type).
- `owner` (object, required) — Owning entity or person id; exactly one nested id is present.
  - `entityId` (string, optional, nullable) — Canonical entity UUID
  - `personId` (string, optional, nullable) — Canonical person UUID
- `updatedAt` (datetime, required) — Row update timestamp.
- `source` (string, optional, nullable) — Attribution source label for the mapping, when recorded.

## Examples

**Request**

```json
{}
```

**Response**

```json
{
  "createdAt": "2024-01-15T09:30:00Z",
  "id": 1,
  "idType": "ein",
  "identifier": "string",
  "owner": {
    "entityId": "string",
    "personId": "string"
  },
  "updatedAt": "2024-01-15T09:30:00Z",
  "source": "string"
}
```

**SDK Code**

```python
import requests

url = "https://api.aventure.vc/v1/people/1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed/unique-ids"

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

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

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

print(response.json())
```

```javascript
const url = 'https://api.aventure.vc/v1/people/1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed/unique-ids?actorType=agent&agentChassis=codex-cli&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{}'
};

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.aventure.vc/v1/people/1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed/unique-ids?actorType=agent&agentChassis=codex-cli&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm"

	payload := strings.NewReader("{}")

	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
require 'uri'
require 'net/http'

url = URI("https://api.aventure.vc/v1/people/1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed/unique-ids?actorType=agent&agentChassis=codex-cli&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm")

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 = "{}"

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/people/1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed/unique-ids?actorType=agent&agentChassis=codex-cli&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.aventure.vc/v1/people/1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed/unique-ids?actorType=agent&agentChassis=codex-cli&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm', [
  'body' => '{}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.aventure.vc/v1/people/1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed/unique-ids?actorType=agent&agentChassis=codex-cli&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

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

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.aventure.vc/v1/people/1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed/unique-ids?actorType=agent&agentChassis=codex-cli&sourceDetail=aventure.vc&sourceProvider=TechCrunch&sourceProviderId=tc-2026-05-20-example-round&sourceProviderSlug=example-round&sourceType=requestChangeForm")! 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()
```