LUIS Endpoint API

This API is currently available in:

  • West US - westus.api.cognitive.microsoft.com
  • West US 2 - westus2.api.cognitive.microsoft.com
  • East US - eastus.api.cognitive.microsoft.com
  • East US 2 - eastus2.api.cognitive.microsoft.com
  • West Central US - westcentralus.api.cognitive.microsoft.com
  • South Central US - southcentralus.api.cognitive.microsoft.com
  • West Europe - westeurope.api.cognitive.microsoft.com
  • North Europe - northeurope.api.cognitive.microsoft.com
  • Southeast Asia - southeastasia.api.cognitive.microsoft.com
  • East Asia - eastasia.api.cognitive.microsoft.com
  • Australia East - australiaeast.api.cognitive.microsoft.com
  • Brazil South - brazilsouth.api.cognitive.microsoft.com

v2.0 Response - Get predictions from endpoint

Gets the published endpoint predictions for the given query. The current maximum query size is 500 characters.

Learn more about data extraction in LUIS response.

West US West US 2 East US East US 2 West Central US South Central US West Europe North Europe Southeast Asia East Asia Australia East Brazil South Canada Central Central India UK South Japan East

Request URL

Request parameters

string

Format - guid. The application ID

string

The query to predict

(optional)
number

The timezone offset for the location of the request in minutes

(optional)
boolean

If true will return all intents instead of just the topscoring intent

(optional)
boolean

Enable spell checking

(optional)
boolean

Use staging endpoint

(optional)
string

The subscription key to use when enabling bing spell check

(optional)
boolean

Log query (default is true)

Request headers

string
Subscription key which provides access to this API. Found in your Cognitive Services accounts.

Request body

Response 200

A JSON object containing the predictions

{
  "query": "forward to frank 30 dollars through HSBC",
  "topScoringIntent": {
    "intent": "give",
    "score": 0.3964121
  },
  "entities": [
    {
      "entity": "30",
      "type": "builtin.number",
      "startIndex": 17,
      "endIndex": 18,
      "resolution": {
        "value": "30"
      }
    },
    {
      "entity": "frank",
      "type": "frank",
      "startIndex": 11,
      "endIndex": 15,
      "score": 0.935219169
    },
    {
      "entity": "30 dollars",
      "type": "builtin.currency",
      "startIndex": 17,
      "endIndex": 26,
      "resolution": {
        "unit": "Dollar",
        "value": "30"
      }
    },
    {
      "entity": "hsbc",
      "type": "Bank",
      "startIndex": 36,
      "endIndex": 39,
      "resolution": {
        "values": [
          "BankeName"
        ]
      }
    }
  ],
  "sentimentAnalysis": {
    "label": "neutral",
    "score": 0.5
  }
}

Response 414

The query is too large. Reduce your query to the maximum characters.

Response 429

Too many requests. If you created a LUIS key to increase your quota, make sure to change the subscription key used in the endpoint request.

Response 400

This error can be returned if the request's parameters are incorrect meaning the required parameters are missing, malformed, or too large.

Other reasons include:

  • Model not published. Please publish your model before hitting the Endpoint.

Response 401

You do not have access.

Reasons can include:

  • invalid, malformed, or empty subscription key
  • subscription key doesn't match region

Response 403

Total monthly key quota limit exceeded. If you created a LUIS key to increase your quota, make sure to change the subscription key used in the endpoint request.

Response 409

When you receive the error message"Application loading in progress, please try again.", retry the request.

Response 410

When you receive "Please re-train and republish your application.", you should retrain and republish your app, then make the request again.

Code samples

@ECHO OFF

curl -v -X GET "https://westus.api.cognitive.microsoft.com/luis/v2.0/apps/{appId}?q={q}?timezoneOffset={number}&verbose={boolean}&spellCheck={boolean}&staging={boolean}&bing-spell-check-subscription-key={string}&log={boolean}"
-H "Ocp-Apim-Subscription-Key: {subscription key}"

--data-ascii "{body}" 
using System;
using System.Net.Http.Headers;
using System.Text;
using System.Net.Http;
using System.Web;

namespace CSHttpClientSample
{
    static class Program
    {
        static void Main()
        {
            MakeRequest();
            Console.WriteLine("Hit ENTER to exit...");
            Console.ReadLine();
        }
        
        static async void MakeRequest()
        {
            var client = new HttpClient();
            var queryString = HttpUtility.ParseQueryString(string.Empty);

            // Request headers
            client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", "{subscription key}");

            // Request parameters
            queryString["timezoneOffset"] = "{number}";
            queryString["verbose"] = "{boolean}";
            queryString["spellCheck"] = "{boolean}";
            queryString["staging"] = "{boolean}";
            queryString["bing-spell-check-subscription-key"] = "{string}";
            queryString["log"] = "{boolean}";
            var uri = "https://westus.api.cognitive.microsoft.com/luis/v2.0/apps/{appId}?q={q}&" + queryString;

            var response = await client.GetAsync(uri);
        }
    }
}	
// // This sample uses the Apache HTTP client from HTTP Components (http://hc.apache.org/httpcomponents-client-ga/)
import java.net.URI;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class JavaSample 
{
    public static void main(String[] args) 
    {
        HttpClient httpclient = HttpClients.createDefault();

        try
        {
            URIBuilder builder = new URIBuilder("https://westus.api.cognitive.microsoft.com/luis/v2.0/apps/{appId}?q={q}");

            builder.setParameter("timezoneOffset", "{number}");
            builder.setParameter("verbose", "{boolean}");
            builder.setParameter("spellCheck", "{boolean}");
            builder.setParameter("staging", "{boolean}");
            builder.setParameter("bing-spell-check-subscription-key", "{string}");
            builder.setParameter("log", "{boolean}");

            URI uri = builder.build();
            HttpGet request = new HttpGet(uri);
            request.setHeader("Ocp-Apim-Subscription-Key", "{subscription key}");


            // Request body
            StringEntity reqEntity = new StringEntity("{body}");
            request.setEntity(reqEntity);

            HttpResponse response = httpclient.execute(request);
            HttpEntity entity = response.getEntity();

            if (entity != null) 
            {
                System.out.println(EntityUtils.toString(entity));
            }
        }
        catch (Exception e)
        {
            System.out.println(e.getMessage());
        }
    }
}

<!DOCTYPE html>
<html>
<head>
    <title>JSSample</title>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
</head>
<body>

<script type="text/javascript">
    $(function() {
        var params = {
            // Request parameters
            "timezoneOffset": "{number}",
            "verbose": "{boolean}",
            "spellCheck": "{boolean}",
            "staging": "{boolean}",
            "bing-spell-check-subscription-key": "{string}",
            "log": "{boolean}",
        };
      
        $.ajax({
            url: "https://westus.api.cognitive.microsoft.com/luis/v2.0/apps/{appId}?q={q}&" + $.param(params),
            beforeSend: function(xhrObj){
                // Request headers
                xhrObj.setRequestHeader("Ocp-Apim-Subscription-Key","{subscription key}");
            },
            type: "GET",
            // Request body
            data: "{body}",
        })
        .done(function(data) {
            alert("success");
        })
        .fail(function() {
            alert("error");
        });
    });
</script>
</body>
</html>
#import <Foundation/Foundation.h>

int main(int argc, const char * argv[])
{
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
    
    NSString* path = @"https://westus.api.cognitive.microsoft.com/luis/v2.0/apps/{appId}?q={q}";
    NSArray* array = @[
                         // Request parameters
                         @"entities=true",
                         @"timezoneOffset={number}",
                         @"verbose={boolean}",
                         @"spellCheck={boolean}",
                         @"staging={boolean}",
                         @"bing-spell-check-subscription-key={string}",
                         @"log={boolean}",
                      ];
    
    NSString* string = [array componentsJoinedByString:@"&"];
    path = [path stringByAppendingFormat:@"?%@", string];

    NSLog(@"%@", path);

    NSMutableURLRequest* _request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:path]];
    [_request setHTTPMethod:@"GET"];
    // Request headers
    [_request setValue:@"{subscription key}" forHTTPHeaderField:@"Ocp-Apim-Subscription-Key"];
    // Request body
    [_request setHTTPBody:[@"{body}" dataUsingEncoding:NSUTF8StringEncoding]];
    
    NSURLResponse *response = nil;
    NSError *error = nil;
    NSData* _connectionData = [NSURLConnection sendSynchronousRequest:_request returningResponse:&response error:&error];

    if (nil != error)
    {
        NSLog(@"Error: %@", error);
    }
    else
    {
        NSError* error = nil;
        NSMutableDictionary* json = nil;
        NSString* dataString = [[NSString alloc] initWithData:_connectionData encoding:NSUTF8StringEncoding];
        NSLog(@"%@", dataString);
        
        if (nil != _connectionData)
        {
            json = [NSJSONSerialization JSONObjectWithData:_connectionData options:NSJSONReadingMutableContainers error:&error];
        }
        
        if (error || !json)
        {
            NSLog(@"Could not parse loaded json with error:%@", error);
        }
        
        NSLog(@"%@", json);
        _connectionData = nil;
    }
    
    [pool drain];

    return 0;
}
<?php
// This sample uses the Apache HTTP client from HTTP Components (http://hc.apache.org/httpcomponents-client-ga/)
require_once 'HTTP/Request2.php';

$request = new Http_Request2('https://westus.api.cognitive.microsoft.com/luis/v2.0/apps/{appId}?q={q}');
$url = $request->getUrl();

$headers = array(
    // Request headers
    'Ocp-Apim-Subscription-Key' => '{subscription key}',
);

$request->setHeader($headers);

$parameters = array(
    // Request parameters
    'timezoneOffset' => '{number}',
    'verbose' => '{boolean}',
    'spellCheck' => '{boolean}',
    'staging' => '{boolean}',
    'bing-spell-check-subscription-key' => '{string}',
    'log' => '{boolean}',
);

$url->setQueryVariables($parameters);

$request->setMethod(HTTP_Request2::METHOD_GET);

// Request body
$request->setBody("{body}");

try
{
    $response = $request->send();
    echo $response->getBody();
}
catch (HttpException $ex)
{
    echo $ex;
}

?>
########### Python 2.7 #############
import httplib, urllib, base64

headers = {
    # Request headers
    'Ocp-Apim-Subscription-Key': '{subscription key}',
}

params = urllib.urlencode({
    # Request parameters
    'timezoneOffset': '{number}',
    'verbose': '{boolean}',
    'spellCheck': '{boolean}',
    'staging': '{boolean}',
    'bing-spell-check-subscription-key': '{string}',
    'log': '{boolean}',
})

try:
    conn = httplib.HTTPSConnection('westus.api.cognitive.microsoft.com')
    conn.request("GET", "/luis/v2.0/apps/{appId}?q={q}&%s" % params, "{body}", headers)
    response = conn.getresponse()
    data = response.read()
    print(data)
    conn.close()
except Exception as e:
    print("[Errno {0}] {1}".format(e.errno, e.strerror))

####################################

########### Python 3.2 #############
import http.client, urllib.request, urllib.parse, urllib.error, base64

headers = {
    # Request headers
    'Ocp-Apim-Subscription-Key': '{subscription key}',
}

params = urllib.parse.urlencode({
    # Request parameters
    'timezoneOffset': '{number}',
    'verbose': '{boolean}',
    'spellCheck': '{boolean}',
    'staging': '{boolean}',
    'bing-spell-check-subscription-key': '{string}',
    'log': '{boolean}',
})

try:
    conn = http.client.HTTPSConnection('westus.api.cognitive.microsoft.com')
    conn.request("GET", "/luis/v2.0/apps/{appId}?q={q}&%s" % params, "{body}", headers)
    response = conn.getresponse()
    data = response.read()
    print(data)
    conn.close()
except Exception as e:
    print("[Errno {0}] {1}".format(e.errno, e.strerror))

####################################
require 'net/http'

uri = URI('https://westus.api.cognitive.microsoft.com/luis/v2.0/apps/{appId}?q={q}')
uri.query = URI.encode_www_form({
    # Request parameters
    'timezoneOffset' => '{number}',
    'verbose' => '{boolean}',
    'spellCheck' => '{boolean}',
    'staging' => '{boolean}',
    'bing-spell-check-subscription-key' => '{string}',
    'log' => '{boolean}'
})

request = Net::HTTP::Get.new(uri.request_uri)
# Request headers
request['Ocp-Apim-Subscription-Key'] = '{subscription key}'
# Request body
request.body = "{body}"

response = Net::HTTP.start(uri.host, uri.port, :use_ssl => uri.scheme == 'https') do |http|
    http.request(request)
end

puts response.body