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> For a complete documentation index, see https://docs.itential.com/itential-cloud/api-reference/json-forms/validate-data/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.itential.com/_mcp/server.

# Validate data against a schema

POST https://example.itential.io/json-forms/validate-data
Content-Type: application/json

Performs data validation, given a JSON schema and form data.

Reference: https://docs.itential.com/itential-cloud/api-reference/json-forms/validate-data

## Authentication

- `Authorization` header (basic auth, required) — Basic authentication of the form `Basic <base64(username:password)>`.

## Request

### Body (application/json)

This endpoint expects an object.

- `jsonSchema` (boolean or object, optional)
  - object
    - `$id` (string, optional)
    - `$schema` (string, optional)
    - `$ref` (string, optional)
    - `$comment` (string, optional)
    - `title` (string, optional)
    - `description` (string, optional)
    - `default` (any, optional)
    - `readOnly` (boolean, optional, default: false)
    - `examples` (list of any, optional)
    - `multipleOf` (double, optional)
    - `maximum` (double, optional)
    - `exclusiveMaximum` (double, optional)
    - `minimum` (double, optional)
    - `exclusiveMinimum` (double, optional)
    - `maxLength` (integer, optional)
    - `minLength` (integer, optional, default: 0)
    - `pattern` (string, optional)
    - `additionalItems` (any, optional)
    - `items` (any or list of any, optional, default: true)
    - `maxItems` (integer, optional)
    - `minItems` (integer, optional, default: 0)
    - `uniqueItems` (boolean, optional, default: false)
    - `contains` (any, optional)
    - `maxProperties` (integer, optional)
    - `minProperties` (integer, optional, default: 0)
    - `required` (list of string, optional, default: [])
    - `additionalProperties` (any, optional)
    - `definitions` (map from string to any, optional, default: {})
    - `properties` (map from string to any, optional, default: {})
    - `patternProperties` (map from string to any, optional, default: {})
    - `dependencies` (map from string to any or list of string, optional)
    - `propertyNames` (any, optional)
    - `const` (any, optional)
    - `enum` (list of any, optional)
    - `type` (enum or list of enum, optional)
    - `format` (string, optional)
    - `contentMediaType` (string, optional)
    - `contentEncoding` (string, optional)
    - `if` (any, optional)
    - `then` (any, optional)
    - `else` (any, optional)
    - `allOf` (list of any, optional)
    - `anyOf` (list of any, optional)
    - `oneOf` (list of any, optional)
    - `not` (any, optional)
- `data` (object, optional)

## Response

### 200

results from the form validation

- `status` (enum, optional)
  - Allowed values: `200`, `404`
- `validation` (object, optional)
  - `valid` (boolean, optional)
  - `errors` (list of string, optional)
- `message` (string, optional)

## Errors

### 500 Internal Server Error

Error response from API

- `any`

## Examples

**Request**

```json
{}
```

**Response**

```json
{
  "status": 200,
  "validation": {
    "valid": true,
    "errors": [
      "string"
    ]
  },
  "message": "Form data is valid."
}
```

**SDK Code**

```python
import requests

url = "https://example.itential.io/json-forms/validate-data"

payload = {}
headers = {"Content-Type": "application/json"}

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

print(response.json())
```

```javascript
const url = 'https://example.itential.io/json-forms/validate-data';
const options = {method: 'POST', headers: {'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://example.itential.io/json-forms/validate-data"

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

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

	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://example.itential.io/json-forms/validate-data")

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

request = Net::HTTP::Post.new(url)
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://example.itential.io/json-forms/validate-data")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://example.itential.io/json-forms/validate-data', [
  'body' => '{}',
  'headers' => [
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://example.itential.io/json-forms/validate-data");
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Content-Type": "application/json"]
let parameters = [] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://example.itential.io/json-forms/validate-data")! 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()
```