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

# Datasets

A dataset is the result of onboarding.

It represents a datasource after the platform has prepared it for model training. Training workflows use datasets as their input.

## Initial and incremental datasets

The first successful onboarding job creates an initial dataset.

Later onboarding jobs can create incremental datasets that build on the original dataset. Incremental datasets keep a reference to their parent dataset and include an `increment_index` and `increment_label` so updates can be traced over time.

## Retrieve datasets

Retrieve datasets when you need to find the dataset created by an onboarding job or select a dataset for training.

### Request

GET [https://api.hi.umnai.com/datasets](https://api.hi.umnai.com/datasets)

```curl
curl https://api.hi.umnai.com/datasets \
     -H "Authorization: Bearer <token>"
```

```python
import requests

url = "https://api.hi.umnai.com/datasets"

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

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

print(response.json())
```

```javascript
const url = 'https://api.hi.umnai.com/datasets';
const options = {method: 'GET', 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.hi.umnai.com/datasets"

	req, _ := http.NewRequest("GET", 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.hi.umnai.com/datasets")

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

request = Net::HTTP::Get.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.get("https://api.hi.umnai.com/datasets")
  .header("Authorization", "Bearer <token>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.hi.umnai.com/datasets', [
  'headers' => [
    'Authorization' => 'Bearer <token>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.hi.umnai.com/datasets");
var request = new RestRequest(Method.GET);
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.hi.umnai.com/datasets")! 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()
```

### Response (200)

```json
{
  "data": [
    {
      "id": "ea8b745ead39ec442fc3b4fba359bf98",
      "name": "Sample Organisation",
      "status": "ACTIVE",
      "created_at": "2026-03-11T16:04:19.749000Z",
      "updated_at": null
    }
  ],
  "pagination": {
    "total_items": 1,
    "items_per_page": 10,
    "current_page": 1,
    "total_pages": 1
  }
}
```

You can filter the list by `data_processing_job_id` when you want the dataset produced by a specific onboarding job.

## Retrieve a dataset

Retrieve a dataset by `id` when you need to inspect a specific dataset before training.

### Request

GET [https://api.hi.umnai.com/datasets/\{datasetId}](https://api.hi.umnai.com/datasets/\{datasetId})

```curl
curl https://api.hi.umnai.com/datasets/{datasetId} \
     -H "Authorization: Bearer <token>"
```

```python
import requests

url = "https://api.hi.umnai.com/datasets/:datasetId"

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

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

print(response.json())
```

```javascript
const url = 'https://api.hi.umnai.com/datasets/:datasetId';
const options = {method: 'GET', 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.hi.umnai.com/datasets/:datasetId"

	req, _ := http.NewRequest("GET", 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.hi.umnai.com/datasets/:datasetId")

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

request = Net::HTTP::Get.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.get("https://api.hi.umnai.com/datasets/:datasetId")
  .header("Authorization", "Bearer <token>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.hi.umnai.com/datasets/:datasetId', [
  'headers' => [
    'Authorization' => 'Bearer <token>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.hi.umnai.com/datasets/:datasetId");
var request = new RestRequest(Method.GET);
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.hi.umnai.com/datasets/:datasetId")! 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()
```

### Response (200)

```json
{
  "data": [
    {
      "id": "ea8b745ead39ec442fc3b4fba359bf98",
      "name": "Sample Organisation",
      "status": "ACTIVE",
      "created_at": "2026-03-11T16:04:19.749000Z",
      "updated_at": null
    }
  ],
  "pagination": {
    "total_items": 1,
    "items_per_page": 10,
    "current_page": 1,
    "total_pages": 1
  }
}
```

## Update a dataset

Update a dataset when you need to rename it.

### Request

PATCH [https://api.hi.umnai.com/datasets/\{datasetId}](https://api.hi.umnai.com/datasets/\{datasetId})

```curl
curl -X PATCH https://api.hi.umnai.com/datasets/datasetId \
     -H "Authorization: Bearer <token>" \
     -H "Content-Type: application/json" \
     -d '{
  "name": "Sample Dataset"
}'
```

```python
import requests

url = "https://api.hi.umnai.com/datasets/:datasetId"

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

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

print(response.json())
```

```javascript
const url = 'https://api.hi.umnai.com/datasets/:datasetId';
const options = {
  method: 'PATCH',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"name":"Sample Dataset"}'
};

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.hi.umnai.com/datasets/:datasetId"

	payload := strings.NewReader("{\n  \"name\": \"Sample Dataset\"\n}")

	req, _ := http.NewRequest("PATCH", 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.hi.umnai.com/datasets/:datasetId")

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

request = Net::HTTP::Patch.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"Sample Dataset\"\n}"

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.patch("https://api.hi.umnai.com/datasets/:datasetId")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"Sample Dataset\"\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('PATCH', 'https://api.hi.umnai.com/datasets/:datasetId', [
  'body' => '{
  "name": "Sample Dataset"
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.hi.umnai.com/datasets/:datasetId");
var request = new RestRequest(Method.PATCH);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"name\": \"Sample Dataset\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

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

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.hi.umnai.com/datasets/:datasetId")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "PATCH"
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()
```

### Response (200)

```json
{
  "id": "3c4d09e4ef50b370ae0efacdb43ec2dd",
  "name": "Sample Dataset",
  "increment_index": 0,
  "increment_label": "sample_increment_label",
  "account": {
    "id": "e268443e43d93dab7ebef303bbe9642f",
    "name": "Sample Account"
  },
  "datasource": {
    "id": "1ea7e575defdf6bc3f26a3f127e98170",
    "name": "Sample Datasource"
  },
  "data_processing_job": {
    "id": "fa895821d8f17f02c48bd90f4c98f4bd",
    "name": "Sample Onboarding Job"
  },
  "status": "AVAILABLE",
  "created_at": "2026-03-15T10:15:30.000000Z",
  "parent_dataset": {
    "id": "c0ff256f34131d684db5d5212b7cee39",
    "name": "Sample Parent Dataset"
  },
  "created_by": {
    "id": "dad46b2058752ffde5eaf02f1eb6abd5",
    "name": "Sample User"
  },
  "updated_at": "2026-03-15T10:15:30.000000Z",
  "tags": [
    {
      "name": "Sample Tag"
    }
  ]
}
```

## Delete a dataset

Delete a dataset when it should no longer be used.

### Request

DELETE [https://api.hi.umnai.com/datasets/\{datasetId}](https://api.hi.umnai.com/datasets/\{datasetId})

```curl
curl -X DELETE https://api.hi.umnai.com/datasets/datasetId \
     -H "Authorization: Bearer <token>"
```

```python
import requests

url = "https://api.hi.umnai.com/datasets/datasetId"

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

response = requests.delete(url, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.hi.umnai.com/datasets/datasetId';
const options = {method: 'DELETE', 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.hi.umnai.com/datasets/datasetId"

	req, _ := http.NewRequest("DELETE", 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.hi.umnai.com/datasets/datasetId")

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

request = Net::HTTP::Delete.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.delete("https://api.hi.umnai.com/datasets/datasetId")
  .header("Authorization", "Bearer <token>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('DELETE', 'https://api.hi.umnai.com/datasets/datasetId', [
  'headers' => [
    'Authorization' => 'Bearer <token>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.hi.umnai.com/datasets/datasetId");
var request = new RestRequest(Method.DELETE);
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.hi.umnai.com/datasets/datasetId")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "DELETE"
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()
```

## Views

Dataset views help inspect the structure and lineage of prepared training data.

* [Lineage](/guides/views/dataset-views/dataset-lineage-view) shows how a dataset was created and how it evolved across onboarding runs.
* [Histogram](/guides/views/dataset-views/dataset-histogram-view) shows the distribution of values in a dataset.