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# Review entity duplicate gates (GET)

GET https://api.aventure.vc/v1/entities/duplicate-check

Review duplicate candidates before entity create or update using slug, names, URLs, or domains. Empty results are not proof no entity exists; 409 create responses remain authoritative. Use entity detail for exact lookups and entity list for browsing.

Reference: https://docs.aventure.vc/api-reference/a-venture-api/entities-v-1/duplicate-check-entities-get

## Authentication

- `X-Client-Secret` header (required) — Client secret for read-only service-to-service access (no writes)

## Request

### Query parameters

- `excludeId` (string, optional) — Entity id to exclude from duplicate candidates; not a lookup id
- `slug` (string, optional) — URL-safe identifier
- `typeRecord` (enum, optional) — Entity type
  - Allowed values: `Company`, `Investment Firm`, `Fund`, `Nonprofit`, `Government`, `Organization`, `Business Line`, `Product`, `Service`
- `nameAny` (string, optional) — Loose name match
- `nameBrand` (string, optional) — Brand name
- `nameLegal` (string, optional) — Legal name
- `location` (string, optional) — Location
- `url` (string, optional) — Joined entity URL
- `urlDomain` (string, optional) — URL domain match
- `urlType` (enum, optional) — URL type
  - Allowed values: `website`, `linkedin`, `twitter`, `github`, `facebook`, `instagram`, `tiktok`, `youtube`, `subreddit`, `forum`, `documentation`, `support`, `statuspage`, `changelog`, `roadmap`, `discord`, `crunchbase`, `wellfound`, `angellist`, `glassdoor`, `theorg`, `ycombinator`, `wikipedia`, `pitchbook`, `morningstar`, `bloomberg`, `nyse`, `nasdaq`, `g2`, `producthunt`, `trustpilot`, `alternativeto`, `gartnerpeerinsights`, `getapp`, `sourceforge`, `appstore`, `googleplay`, `capterra`, `trustradius`, `hubspotmarketplace`, `slackappdirectory`, `awsmarketplace`, `salesforceappexchange`, `chromewebstore`, `vscodemarketplace`, `npm`, `pypi`, `maven`, `dockerhub`, `homebrew`, `crates`
- `urlMatchMode` (enum, optional) — URL match mode
  - Allowed values: `hostPath`, `domain`
- `urlStrictness` (enum, optional) — Optional URL match strictness. Omit for strict matching. Send loose or any only when the caller intentionally widens URL matching.
  - Allowed values: `strict`, `loose`, `any`
- `urlCandidate` (list of object, optional) — Additional URL candidates to match
  - `url` (string, optional, nullable) — Duplicate URL value
  - `urlType` (enum, optional, nullable) — Canonical URL platform type such as website, linkedin, twitter, or github. Lifecycle facts belong on link flags such as isCurrent and isPrimary.
    - Allowed values: `website`, `linkedin`, `twitter`, `github`, `facebook`, `instagram`, `tiktok`, `youtube`, `subreddit`, `forum`, `documentation`, `support`, `statuspage`, `changelog`, `roadmap`, `discord`, `crunchbase`, `wellfound`, `angellist`, `glassdoor`, `theorg`, `ycombinator`, `wikipedia`, `pitchbook`, `morningstar`, `bloomberg`, `nyse`, `nasdaq`, `g2`, `producthunt`, `trustpilot`, `alternativeto`, `gartnerpeerinsights`, `getapp`, `sourceforge`, `appstore`, `googleplay`, `capterra`, `trustradius`, `hubspotmarketplace`, `slackappdirectory`, `awsmarketplace`, `salesforceappexchange`, `chromewebstore`, `vscodemarketplace`, `npm`, `pypi`, `maven`, `dockerhub`, `homebrew`, `crates`
- `productServiceProviderId` (string, optional) — Provider entity UUID that scopes Product/Service duplicate candidates to that provider's current productService catalog, including hidden rows. Product and Service slugs are provider-pair scoped, so cross-provider name reuse is not a duplicate; supply this id to review the one catalog that can collide.
- `page` (integer, optional) — Zero-based page index (0..N)
- `size` (integer, optional) — The size of the page to be returned; duplicate-check default 10, maximum 100.
- `sort` (list of string, optional) — Sorting is not supported
- `includePrivate` (boolean, optional) — Privileged read scope for admin callers. Bypasses the public visibility filter so hidden, unverified, and not-yet-published records are returned instead of being silently dropped. Defaults to private for admin API key or ROLE_ADMIN callers; client-secret/client-read callers stay public.

## Response

### 200

OK

- `content` (list of object, optional)
  - `id` (string, required) — Unique entity identifier
  - `image` (object, required) — Logo and monogram image metadata
    - `isMonogram` (boolean, required) — Whether entity image monogram
    - `logo` (string, optional, nullable)
    - `logoSquare` (string, optional, nullable)
  - `nameAlias` (list of object, required) — All names this entity has been known by — current alternates, DBAs, former names, and rebrand-source identities. Naming history (e.g. `Metaphor Systems` for the current `Exa` entity) lives here; never as a separate relationship type or `formerName` field.
    - `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`
  - `nameBrand` (string, required) — Resolved display brand name
  - `slug` (string, required) — URL-safe identifier
  - `createdAt` (datetime, optional, nullable) — Record creation timestamp
  - `defaultCurrency` (string, optional, nullable) — Default currency code (ISO 4217)
  - `foundedYear` (integer, optional, nullable) — Year the entity was founded
  - `lastModifiedAt` (datetime, optional, nullable) — Provenance-grounded last-modified watermark (schema.org dateModified). Advances only when a real, consumer-meaningful data point changes via a recorded provenance event — never on timestamp-only writes, migrations, or index refreshes. Pairs with createdAt (dateCreated) and grounds the sitemap lastmod.
  - `nameLegal` (string, optional, nullable) — Registered legal name
  - `operatingStatus` (string, optional, nullable) — Current operating status. Use Acquired Subsidiary when the entity was acquired and still operates; use Acquired only when it is terminal, folded, or closed.
  - `publicId` (string, optional, nullable) — Stable, immutable public handle (e.g. `eV1StGXR8Z5a`). Never changes once assigned, unlike the slug. Null on projections that do not select it and on rows still awaiting handle backfill.
  - `publicUrl` (string, optional, nullable) — Absolute public profile URL on the aVenture front-end, e.g. `https://aventure.vc/non-profits/{slug}`, derived from the typeRecord's canonical route family. Null when the route needs relationship context or the record has no direct public SSR route (Business Line, Organization, Product, Service, or a non-public slug). EntityDetail.publicUrl resolves Business Line parent context. Product/Service pages are provider-nested: compose the provider entity's publicUrl + `/products-services/` + this record's slug, or consume the sitemap-urls slot paths, which already emit the composed child routes.
  - `sitemap` (object, optional, nullable) — Sub-route eligibility, populated by the sitemap projection. Null on non-sitemap reads to keep thin payloads compact.
    - `hasAnalysis` (boolean, required) — Whether the profile Analysis sub-route should be emitted.
    - `hasEmployees` (boolean, required) — Whether the profile Employees sub-route should be emitted.
    - `hasFundraising` (boolean, required) — Whether the profile Fundraising sub-route should be emitted.
    - `hasNews` (boolean, required) — Whether the profile News sub-route should be emitted.
    - `productServiceSlug` (list of string, required) — Slugs of related Product/Service entities that should each get their own `/companies/<slug>/products-services/<productSlug>` URL, capped at `MAX_PRODUCT_SERVICE_SLUGS` server-side. Derived from current `productService` relationships in either stored direction; the entity relationships resource is the authoritative, read-your-writes view of those joins.
    - `hasAcquisitions` (boolean, optional, default: false) — Whether `/companies/<slug>/acquisitions` should be emitted. True only when an acquisition relationship exists AND both the acquired and acquirer entities are publicly visible. A confirmed acquisition relationship row with this flag `false` (or with `entities acquisitions list` returning zero rows) means a counterpart entity is still hidden -- publish it -- it is a visibility gate, not list lag.
  - `typeRecord` (enum, optional, nullable) — Entity type classification
    - Allowed values: `Company`, `Investment Firm`, `Fund`, `Nonprofit`, `Government`, `Organization`, `Business Line`, `Product`, `Service`
  - `updatedAt` (datetime, optional, nullable) — Last modification timestamp
- `empty` (boolean, optional)
- `first` (boolean, optional)
- `last` (boolean, optional)
- `number` (integer, optional)
- `numberOfElements` (integer, optional)
- `pageable` (object, optional)
  - `offset` (long, optional)
  - `pageNumber` (integer, optional)
  - `pageSize` (integer, optional)
  - `paged` (boolean, optional)
  - `sort` (object, optional)
    - `empty` (boolean, optional)
    - `sorted` (boolean, optional)
    - `unsorted` (boolean, optional)
  - `unpaged` (boolean, optional)
- `size` (integer, optional)
- `sort` (object, optional)
  - `empty` (boolean, optional)
  - `sorted` (boolean, optional)
  - `unsorted` (boolean, optional)
- `totalElements` (long, optional)
- `totalPages` (integer, optional)

## Examples

**Response**

```json
{
  "content": [
    {
      "id": "string",
      "image": {
        "isMonogram": true,
        "logo": "string",
        "logoSquare": "string"
      },
      "nameAlias": [
        {
          "name": "Bun",
          "displayable": true,
          "type": "alternativeDba"
        }
      ],
      "nameBrand": "string",
      "slug": "aventure-vc",
      "createdAt": "2024-01-15T09:30:00Z",
      "defaultCurrency": "string",
      "foundedYear": 1,
      "lastModifiedAt": "2024-01-15T09:30:00Z",
      "nameLegal": "string",
      "operatingStatus": "string",
      "publicId": "eV1StGXR8Z5a",
      "publicUrl": "string",
      "sitemap": {
        "hasAnalysis": true,
        "hasEmployees": true,
        "hasFundraising": true,
        "hasNews": true,
        "productServiceSlug": [
          "string"
        ],
        "hasAcquisitions": false
      },
      "typeRecord": "Company",
      "updatedAt": "2024-01-15T09:30:00Z"
    }
  ],
  "empty": true,
  "first": true,
  "last": true,
  "number": 1,
  "numberOfElements": 1,
  "pageable": {
    "offset": 1,
    "pageNumber": 1,
    "pageSize": 1,
    "paged": true,
    "sort": {
      "empty": true,
      "sorted": true,
      "unsorted": true
    },
    "unpaged": true
  },
  "size": 1,
  "sort": {
    "empty": true,
    "sorted": true,
    "unsorted": true
  },
  "totalElements": 1,
  "totalPages": 1
}
```

**SDK Code**

```python
import requests

url = "https://api.aventure.vc/v1/entities/duplicate-check"

querystring = {"excludeId":"04e2bf9c-a100-72ad-83ff-ba69c647b30b","includePrivate":"false","location":"Portland","nameAny":"Omorpho","nameBrand":"Omorpho","nameLegal":"Omorpho, Inc.","page":"0","productServiceProviderId":"04e2bf9c-a100-72ad-83ff-ba69c647b30b","size":"10","slug":"omorpho-portland-or-us","typeRecord":"Company","url":"https://omorpho.com","urlDomain":"omorpho.com","urlMatchMode":"hostPath","urlStrictness":"strict","urlType":"website"}

headers = {"X-Client-Secret": "<apiKey>"}

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

print(response.json())
```

```javascript
const url = 'https://api.aventure.vc/v1/entities/duplicate-check?excludeId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&includePrivate=false&location=Portland&nameAny=Omorpho&nameBrand=Omorpho&nameLegal=Omorpho%2C+Inc.&page=0&productServiceProviderId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&size=10&slug=omorpho-portland-or-us&typeRecord=Company&url=https%3A%2F%2Fomorpho.com&urlDomain=omorpho.com&urlMatchMode=hostPath&urlStrictness=strict&urlType=website';
const options = {method: 'GET', headers: {'X-Client-Secret': '<apiKey>'}};

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/entities/duplicate-check?excludeId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&includePrivate=false&location=Portland&nameAny=Omorpho&nameBrand=Omorpho&nameLegal=Omorpho%2C+Inc.&page=0&productServiceProviderId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&size=10&slug=omorpho-portland-or-us&typeRecord=Company&url=https%3A%2F%2Fomorpho.com&urlDomain=omorpho.com&urlMatchMode=hostPath&urlStrictness=strict&urlType=website"

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

	req.Header.Add("X-Client-Secret", "<apiKey>")

	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/entities/duplicate-check?excludeId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&includePrivate=false&location=Portland&nameAny=Omorpho&nameBrand=Omorpho&nameLegal=Omorpho%2C+Inc.&page=0&productServiceProviderId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&size=10&slug=omorpho-portland-or-us&typeRecord=Company&url=https%3A%2F%2Fomorpho.com&urlDomain=omorpho.com&urlMatchMode=hostPath&urlStrictness=strict&urlType=website")

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

request = Net::HTTP::Get.new(url)
request["X-Client-Secret"] = '<apiKey>'

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.get("https://api.aventure.vc/v1/entities/duplicate-check?excludeId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&includePrivate=false&location=Portland&nameAny=Omorpho&nameBrand=Omorpho&nameLegal=Omorpho%2C+Inc.&page=0&productServiceProviderId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&size=10&slug=omorpho-portland-or-us&typeRecord=Company&url=https%3A%2F%2Fomorpho.com&urlDomain=omorpho.com&urlMatchMode=hostPath&urlStrictness=strict&urlType=website")
  .header("X-Client-Secret", "<apiKey>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.aventure.vc/v1/entities/duplicate-check?excludeId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&includePrivate=false&location=Portland&nameAny=Omorpho&nameBrand=Omorpho&nameLegal=Omorpho%2C+Inc.&page=0&productServiceProviderId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&size=10&slug=omorpho-portland-or-us&typeRecord=Company&url=https%3A%2F%2Fomorpho.com&urlDomain=omorpho.com&urlMatchMode=hostPath&urlStrictness=strict&urlType=website', [
  'headers' => [
    'X-Client-Secret' => '<apiKey>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.aventure.vc/v1/entities/duplicate-check?excludeId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&includePrivate=false&location=Portland&nameAny=Omorpho&nameBrand=Omorpho&nameLegal=Omorpho%2C+Inc.&page=0&productServiceProviderId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&size=10&slug=omorpho-portland-or-us&typeRecord=Company&url=https%3A%2F%2Fomorpho.com&urlDomain=omorpho.com&urlMatchMode=hostPath&urlStrictness=strict&urlType=website");
var request = new RestRequest(Method.GET);
request.AddHeader("X-Client-Secret", "<apiKey>");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["X-Client-Secret": "<apiKey>"]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.aventure.vc/v1/entities/duplicate-check?excludeId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&includePrivate=false&location=Portland&nameAny=Omorpho&nameBrand=Omorpho&nameLegal=Omorpho%2C+Inc.&page=0&productServiceProviderId=04e2bf9c-a100-72ad-83ff-ba69c647b30b&size=10&slug=omorpho-portland-or-us&typeRecord=Company&url=https%3A%2F%2Fomorpho.com&urlDomain=omorpho.com&urlMatchMode=hostPath&urlStrictness=strict&urlType=website")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
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()
```