> ## Documentation Index
> Fetch the complete documentation index at: https://koreai-ai-for-service-dev.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Dialogflow Engine

<Badge icon="arrow-left" color="gray">[Back to External NLU Integrations](/ai-for-service/integrations/overview#external-nlu)</Badge>

The Dialogflow ES adapter uses NLP and machine learning to identify user intent and extract entities. This page covers how to create and train a Dialogflow agent, enable the Dialogflow API, and generate service account credentials for use in the Kore.ai External NLU adapter settings.

Once configured, you can [test the conversation behavior](/ai-for-service/automation/testing/test-and-debug-overview) of your AI Agent using your Dialogflow ES model.

***

## Train the Dialogflow Engine

**Prerequisites:** At least one agent created on [Dialogflow Essentials](https://dialogflow.cloud.google.com/). Intent and entity names in Dialogflow must match those defined in the Platform.

To configure the Dialogflow ES adapter, you need the **Project ID** and **Private Key** from your Google Cloud service account JSON file. See [Enable the Dialogflow API](#enable-the-dialogflow-api) and [Create Service Account Credentials](#create-service-account-credentials).

### Create and Train an Agent

1. Go to [Dialogflow Essentials](https://dialogflow.cloud.google.com/) and click **Create Agent**. In this example, the agent is named `Test_Dialogflow`.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/Yk4EsZmyw8QZe63M/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img1.png?fit=max&auto=format&n=Yk4EsZmyw8QZe63M&q=85&s=2fc7e0847b7f2c612ac42be345bcb6c5" alt="Create an agent" width="1398" height="644" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img1.png" />

2. Click **Create Intent** and name it to match the intent in your AI Agent.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img2.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=886527cf2f6e7d2415d67b3009d633c9" alt="Create an intent with the same name as in your App" width="1285" height="868" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img2.png" />

3. In this example, the intent is named `Phone Number Verification` to match the corresponding intent in the AI Agent.

4. Under **Action and Parameters**, add the action name matching the entity, then fill in **Parameter Name**, **Entity**, **Value**, and **Prompt**.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img3.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=97d55c552deced19547f56ac616ac528" alt="Add action, parameter, entity, value, prompt" width="1920" height="1080" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img3.png" />

5. Under **Responses > Default**, add the **Text Response** to display to the user.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img4.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=e4a2de56dabc9b4caa0a0782badfb53d" alt="Add text response" width="1920" height="1080" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img4.png" />

6. Click **Save**.

7. Go to **Training** in the left menu and enter the intent name under **User Says**.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img5.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=abbf371964c596d6618ea0058dc341ac" alt="Go to Training and enter Intent name" width="1920" height="1080" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img5.png" />

8. In the **Try Now** panel (top right), enter the intent name to test the configuration.

9. The configured text response appears under **Default Response**.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img6.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=44c66e97522c677e04d0d3980d95205c" alt="Configured text response displayed under Default Response" width="1920" height="1080" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img6.png" />

   <Note>You can configure any intents, entities, or FAQ details you need to identify using the Dialogflow ES adapter.</Note>

***

## Enable the Dialogflow API

1. Click the **Gear** icon next to the agent name in the Dialogflow dashboard.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img7.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=da5fb23e0d332d3eea9cb1e827c8e2a5" alt="Click the Gear icon next to the agent name" width="933" height="461" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img7.png" />

2. On the **General Settings** page, scroll down to find the **Project ID**.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img8.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=ac686b2e78ae4b45ff1ce06f5a7088af" alt="Note the project ID" width="1375" height="757" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img8.png" />

   <Note>The Project ID is required when configuring the Dialogflow ES adapter on the Platform.</Note>

3. Click the Project ID to open Google Cloud.

4. In the Google Cloud dashboard, go to **APIs & Services > Enabled APIs & Services**.

5. Click **+ Enable APIs and Services** and search for **Dialogflow API**.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img9.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=8360c9f5ee880e2ece87079b8d12a05b" alt="Click Enable APIs and Services" width="1295" height="277" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img9.png" />

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/Yk4EsZmyw8QZe63M/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img10.png?fit=max&auto=format&n=Yk4EsZmyw8QZe63M&q=85&s=2b6ad88c571fb72af10c17ff660b9270" alt="Find Dialogflow API option" width="1459" height="520" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img10.png" />

6. After activating the Dialogflow API, click **Manage** to open the API management dashboard.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/Yk4EsZmyw8QZe63M/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img11.png?fit=max&auto=format&n=Yk4EsZmyw8QZe63M&q=85&s=7654a360ce6384032c38de4474a149b5" alt="Dialogflow API management dashboard" width="1025" height="556" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img11.png" />

***

## Create Service Account Credentials

### Create a Service Account

1. Click **Create Credentials** at the top of the Dialogflow API management dashboard.

   <Note>If you already have service accounts, access them from **Credentials** in the left navigation menu.</Note>

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/Yk4EsZmyw8QZe63M/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img12.png?fit=max&auto=format&n=Yk4EsZmyw8QZe63M&q=85&s=9855647fe00f8e5cbd3e5f1d316e2b0b" alt="Click 'Create Credentials'" width="1896" height="527" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img12.png" />

2. On the **Create Credentials** page, **Dialogflow API** is pre-selected in the **Select an API** dropdown.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/Yk4EsZmyw8QZe63M/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img13.png?fit=max&auto=format&n=Yk4EsZmyw8QZe63M&q=85&s=720b64dc9f55bf33f89cb269f9279659" alt="Dialogflow API is by default selected" width="810" height="600" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img13.png" />

3. For **What data will you be accessing?**, select **Application Data**. Click **Next**.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/Yk4EsZmyw8QZe63M/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img14.png?fit=max&auto=format&n=Yk4EsZmyw8QZe63M&q=85&s=f09bdd19f8556d6af0fd66f80195845a" alt="Application Data selected" width="889" height="472" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img14.png" />

4. Select **No, I'm not using them** and click **Next**.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/Yk4EsZmyw8QZe63M/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img15.png?fit=max&auto=format&n=Yk4EsZmyw8QZe63M&q=85&s=a68fc2ecc7e05956475674c1868846f9" alt="No, I'm not using them" width="789" height="398" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img15.png" />

5. Fill in the service account name, ID, and description.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/Yk4EsZmyw8QZe63M/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img16.png?fit=max&auto=format&n=Yk4EsZmyw8QZe63M&q=85&s=c72943d19f0e372ebfa8210c189aa812" alt="Service account details" width="825" height="535" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img16.png" />

6. Click **Create and Continue**.

7. Grant the required access permissions and user access on the subsequent pages.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img17.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=3be7bd1cfa165985b5a4e8ef02e0a7b4" alt="Grant permission to Service Account" width="797" height="508" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img17.png" />

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img18.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=552d068f795e4a77bd5d09ce38bf47c0" alt="Grant permission to User" width="850" height="492" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img18.png" />

### Generate a Private Key

1. Click the service account under **Service Accounts** in **APIs & Services**.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img19.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=12f6932ba6f103e1898a5b32da43e84c" alt="Click on the Service account" width="1887" height="599" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img19.png" />

2. Go to the **Keys** tab.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img20.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=8d0b03fafbbc91e9170c5e407f29f573" alt="Service account details - Keys tab" width="1459" height="530" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img20.png" />

3. In the **Add Key** dropdown, select **Create a new key**.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img21.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=8cf2e51ee9563a11c2d1176767c9f328" alt="Create a new private key" width="486" height="586" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img21.png" />

4. Select **JSON** and confirm.

   <img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img22.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=558dc85cac429f3332851c68a9ff5d26" alt="JSON option to create Private key" width="867" height="537" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img22.png" />

   <Note>JSON is selected by default.</Note>

A JSON file is downloaded to your computer.

<img src="https://mintcdn.com/koreai-ai-for-service-dev/BHILfya0Q4TMLdhx/ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img23.png?fit=max&auto=format&n=BHILfya0Q4TMLdhx&q=85&s=b66cb3e8eea307227b10cdcdec9caa18" alt="JSON Private Key information downloaded" width="1266" height="396" data-path="ai-for-service/integrations/external-nlu/images/external-nlu-dialogflow-engine-img23.png" />

The file structure:

```json theme={null}
{
  "type": "***",
  "project_id": "***",
  "private_key_id": "***",
  "private_key": "***",
  "client_email": "***",
  "client_id": "***",
  "auth_uri": "***",
  "token_uri": "***",
  "auth_provider_x509_cert_url": "***",
  "client_x509_cert_url": "***"
}
```

<Note>
  Save this JSON file securely — you can't access it again. Copy the entire contents into the **Private Key** field in the Kore.ai External NLU adapter settings.
</Note>

***

To validate the Dialogflow NLU configuration, see [Test and Debug](/ai-for-service/automation/testing/test-and-debug-overview).
