Knowledge Base

Knowledge bases provide contextual information for Streaming Avatar AI responses. Documents and URLs are processed to enhance the avatar’s understanding and response quality during interactive sessions.

This API allows you to create and manage knowledge bases that can be integrated with Streaming Avatar sessions to provide more accurate and contextually relevant AI responses.

Overview

The Knowledge Base API is specifically designed to enhance Streaming Avatar interactions by providing contextual information. You can create and manage knowledge bases containing documents and URLs that give your Streaming Avatar the context needed to provide more accurate, relevant, and intelligent responses during real-time conversations.

Data Model

Knowledge Base Object:

_id: Knowledge base unique identifier (string)
team_id: Team identifier (string, required)
uid: User identifier (number)
user_type: User type (number, 1=internal user, 2=external user)
from: Source type (number, 1=system, 2=user)
name: Knowledge base name (string, optional, max 100 characters)
prologue: Opening message/greeting text (string, optional, max 100 characters) - can be used with TTS repeat mode for personalized AI assistant introductions
prompt: AI prompt instructions (string, optional, max 10,000 characters)
docs: Array of document objects (array, optional)
urls: Array of URL strings (array, optional)
create_time: Creation timestamp (number)
update_time: Last update timestamp (number)

Document Object Structure:

{
  "name": "document_name.pdf",
  "url": "https://example.com/document.pdf",
  "size": 1024000
}

File Constraints

Document Limitations:

Single file size limit: 100MB (104,857,600 bytes)
Total files size limit: 500MB (524,288,000 bytes)
Supported formats: PDF, DOC, DOCX, TXT, MD, JSON, XML, CSV

Field Limitations:

name: Maximum 100 characters
prologue: Maximum 100 characters (recommended for TTS voice synthesis)
prompt: Maximum 10,000 characters

API Endpoints

List Knowledge Bases

Retrieve a paginated list of knowledge bases.

GET https://openapi.akool.com/api/open/v4/knowledge/list

Request Headers

Parameter	Type	Required	Description
Authorization	String	Yes	Bearer token for API authentication. Obtain from GetToken endpoint.

Query Parameters

Parameter	Type	Required	Default	Description
page	Number	No	1	Page number, minimum 1
size	Number	No	10	Items per page, range 1-100
name	String	No	-	Filter by knowledge base name
from	Number	No	2	Filter by source type

Response Attributes

Parameter	Type	Description
code	Integer	Interface returns business status code (1000: success)
msg	String	Interface returns status information
data	Array	Array of knowledge base objects

Example

Request

curl --location 'https://openapi.akool.com/api/open/v4/knowledge/list?page=1&size=10' \
--header 'Authorization: Bearer YOUR_TOKEN'

Response

{
  "code": 1000,
  "msg": "OK",
  "data": [
    {
      "_id": "64f8a1b2c3d4e5f6a7b8c9d0",
      "uid": 123,
      "name": "Customer Support KB",
      "prompt": "You are a helpful customer support assistant.",
      "docs": [
        {
          "name": "user_manual.pdf",
          "url": "https://example.com/user_manual.pdf",
          "size": 1024000
        }
      ],
      "urls": [
        "https://example.com/help",
        "https://example.com/faq"
      ],
      "create_time": 1640995200000,
      "update_time": 1640995200000
    }
  ]
}

Create Knowledge Base

Create a new knowledge base with optional documents and URLs.

POST https://openapi.akool.com/api/open/v4/knowledge/create

Request Headers

Parameter	Type	Required	Description
Authorization	String	Yes	Bearer token for API authentication. Obtain from GetToken endpoint.

Body Attributes

Parameter	Type	Required	Description
name	String	No	Knowledge base name, max 100 characters
prologue	String	No	Opening message/greeting text, max 100 characters (recommended for TTS playback)
prompt	String	No	AI instructions, max 10,000 characters
docs	Array	No	Array of document objects
urls	Array	No	Array of URL strings

Response Attributes

Parameter	Type	Description
code	Integer	Interface returns business status code (1000: success)
msg	String	Interface returns status information
data	Object	Created knowledge base object

Example

Body

{
  "name": "Customer Support KB",
  "prologue": "Hello, I'm your AI assistant. How can I help you?",
  "prompt": "You are a professional AI assistant. Please answer questions based on the provided documents.",
  "docs": [
    {
      "name": "user_manual.pdf",
      "url": "https://example.com/user_manual.pdf",
      "size": 1024000
    }
  ],
  "urls": [
    "https://example.com/help",
    "https://example.com/faq"
  ]
}

Request

curl --location 'https://openapi.akool.com/api/open/v4/knowledge/create' \
--header 'Authorization: Bearer YOUR_TOKEN' \
--header 'Content-Type: application/json' \
--data '{
  "name": "Customer Support KB",
  "prologue": "Hello, I am your AI assistant. How can I help you?",
  "prompt": "You are a professional AI assistant. Please answer questions based on the provided documents.",
  "docs": [
    {
      "name": "user_manual.pdf",
      "url": "https://example.com/user_manual.pdf",
      "size": 1024000
    }
  ],
  "urls": [
    "https://example.com/help",
    "https://example.com/faq"
  ]
}'

Response

{
  "code": 1000,
  "msg": "OK",
  "data": {
    "_id": "64f8a1b2c3d4e5f6a7b8c9d0",
    "team_id": "team_123456",
    "uid": 789,
    "user_type": 2,
    "from": 2,
    "name": "Customer Support KB",
    "prologue": "Hello, I am your AI assistant. How can I help you?",
    "prompt": "You are a professional AI assistant. Please answer questions based on the provided documents.",
    "docs": [
      {
        "name": "user_manual.pdf",
        "url": "https://example.com/user_manual.pdf",
        "size": 1024000
      }
    ],
    "urls": [
      "https://example.com/help",
      "https://example.com/faq"
    ],
    "create_time": 1640995200000,
    "update_time": 1640995200000
  }
}

Get Knowledge Base Details

Retrieve detailed information about a specific knowledge base.

GET https://openapi.akool.com/api/open/v4/knowledge/detail

Request Headers

Parameter	Type	Required	Description
Authorization	String	Yes	Bearer token for API authentication. Obtain from GetToken endpoint.

Query Parameters

Parameter	Type	Required	Description
id	String	Yes	Knowledge base ID

Response Attributes

Parameter	Type	Description
code	Integer	Interface returns business status code (1000: success)
msg	String	Interface returns status information
data	Object	Knowledge base object details

Example

Request

curl --location 'https://openapi.akool.com/api/open/v4/knowledge/detail?id=64f8a1b2c3d4e5f6a7b8c9d0' \
--header 'Authorization: Bearer YOUR_TOKEN'

Response

{
  "code": 1000,
  "msg": "OK",
  "data": {
    "_id": "64f8a1b2c3d4e5f6a7b8c9d0",
    "team_id": "team_123456",
    "uid": 789,
    "name": "Customer Support KB",
    "prompt": "You are a professional AI assistant.",
    "docs": [
      {
        "name": "user_manual.pdf",
        "url": "https://example.com/user_manual.pdf",
        "size": 1024000
      }
    ],
    "urls": [
      "https://example.com/help"
    ],
    "create_time": 1640995200000,
    "update_time": 1640995200000
  }
}

Update Knowledge Base

Update an existing knowledge base by ID.

POST https://openapi.akool.com/api/open/v4/knowledge/update

Request Headers

Parameter	Type	Required	Description
Authorization	String	Yes	Bearer token for API authentication. Obtain from GetToken endpoint.

Body Attributes

Parameter	Type	Required	Description
id	String	Yes	Knowledge base ID to update
name	String	No	Updated name, max 100 characters
prologue	String	No	Updated opening message/greeting text, max 100 characters
prompt	String	No	Updated AI instructions, max 10,000 characters
docs	Array	No	Updated document array
urls	Array	No	Updated URL array

Response Attributes

Parameter	Type	Description
code	Integer	Interface returns business status code (1000: success)
msg	String	Interface returns status information
data	Object	Updated knowledge base object

Example

Body

{
  "id": "64f8a1b2c3d4e5f6a7b8c9d0",
  "name": "Updated Customer Support KB",
  "prologue": "Updated opening message",
  "prompt": "Updated AI instructions",
  "docs": [
    {
      "name": "updated_manual.pdf",
      "url": "https://example.com/updated_manual.pdf",
      "size": 2048000
    }
  ],
  "urls": [
    "https://example.com/updated-help"
  ]
}

Request

curl --location 'https://openapi.akool.com/api/open/v4/knowledge/update' \
--header 'Authorization: Bearer YOUR_TOKEN' \
--header 'Content-Type: application/json' \
--data '{
  "id": "64f8a1b2c3d4e5f6a7b8c9d0",
  "name": "Updated Customer Support KB",
  "prologue": "Updated opening message",
  "prompt": "Updated AI instructions",
  "docs": [
    {
      "name": "updated_manual.pdf",
      "url": "https://example.com/updated_manual.pdf",
      "size": 2048000
    }
  ],
  "urls": [
    "https://example.com/updated-help"
  ]
}'

Response

{
  "code": 1000,
  "msg": "OK",
  "data": {
    "_id": "64f8a1b2c3d4e5f6a7b8c9d0",
    "team_id": "team_123456",
    "uid": 789,
    "name": "Updated Customer Support KB",
    "prompt": "Updated AI instructions",
    "docs": [
      {
        "name": "updated_manual.pdf",
        "url": "https://example.com/updated_manual.pdf",
        "size": 2048000
      }
    ],
    "urls": [
      "https://example.com/updated-help"
    ],
    "create_time": 1640995200000,
    "update_time": 1640995300000
  }
}

Delete Knowledge Base

Delete a knowledge base by ID.

DELETE https://openapi.akool.com/api/open/v4/knowledge/delete

Request Headers

Parameter	Type	Required	Description
Authorization	String	Yes	Bearer token for API authentication. Obtain from GetToken endpoint.

Body Attributes

Parameter	Type	Required	Description
id	String	Yes	Knowledge base ID to delete

Response Attributes

Parameter	Type	Description
code	Integer	Interface returns business status code (1000: success)
msg	String	Interface returns status information

Example

Body

{
  "id": "64f8a1b2c3d4e5f6a7b8c9d0"
}

Request

curl --location --request DELETE 'https://openapi.akool.com/api/open/v4/knowledge/delete' \
--header 'Authorization: Bearer YOUR_TOKEN' \
--header 'Content-Type: application/json' \
--data '{
  "id": "64f8a1b2c3d4e5f6a7b8c9d0"
}'

Response

{
  "code": 1000,
  "msg": "OK"
}

Integration with Streaming Avatar

Using Knowledge Base in Streaming Avatar Sessions

To enhance your Streaming Avatar with contextual knowledge, simply provide the knowledge_id parameter when creating a Streaming Avatar session. This enables the AI to access documents and URLs from your knowledge base, resulting in more informed and accurate responses during real-time interactions.

Reference: Create Streaming Avatar Session

Example Integration:

{
  "avatar_id": "avatar_123",
  "background_url": "https://example.com/background.jpg",
  "duration": 600,
  "stream_type": "agora",
  "knowledge_id": "64f8a1b2c3d4e5f6a7b8c9d0"
}

When a knowledge_id is provided, the system automatically:

Incorporates the knowledge base’s prompt into the AI’s context
Processes documents and URLs to enhance AI understanding
Uses the prologue for personalized AI assistant introductions (if TTS repeat mode is enabled)

The prologue field is particularly useful for TTS (Text-to-Speech) models in repeat mode, providing personalized AI assistant introductions at the beginning of LiveAvatar sessions.

Error Codes

Code	Description
1000	Success
1003	Parameter validation error
1232	Knowledge not found
1233	Knowledge already exists
1234	Knowledge creation error
1235	Knowledge update error
1236	Knowledge detail error

Complete Workflow Example

Here’s a complete workflow showing how to create a knowledge base and integrate it with your Streaming Avatar for enhanced AI responses:

# 1. Create a knowledge base
curl -X POST "https://openapi.akool.com/api/open/v4/knowledge/create" \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Customer Support KB",
    "prologue": "Hello, I am your customer support assistant. How can I help you today?",
    "prompt": "You are a helpful customer support assistant. Use the provided documents to answer questions accurately.",
    "docs": [
      {
        "name": "user_guide.pdf",
        "url": "https://example.com/user_guide.pdf",
        "size": 1024000
      }
    ],
    "urls": [
      "https://example.com/help",
      "https://example.com/faq"
    ]
  }'

# 2. Use the knowledge base in a streaming avatar session
curl -X POST "https://openapi.akool.com/api/open/v4/liveAvatar/session/create" \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "avatar_id": "your_avatar_id",
    "knowledge_id": "KNOWLEDGE_ID_FROM_STEP_1"
  }'

Document size can be obtained using JavaScript’s File.size property for client-side file uploads
Knowledge base names must be unique within a team for the same user
Results are sorted by creation time in descending order
Users can only access knowledge bases within their team

Authentication

AI Tools Suite

Implementation guide

Streaming Avatar SDK

Streaming Avatar Knowledge Base

Overview

Data Model

File Constraints

API Endpoints

List Knowledge Bases

Create Knowledge Base

Get Knowledge Base Details

Update Knowledge Base

Delete Knowledge Base

Integration with Streaming Avatar

Using Knowledge Base in Streaming Avatar Sessions

Error Codes

Complete Workflow Example

Authentication

AI Tools Suite

Implementation guide

Streaming Avatar SDK

Streaming Avatar Knowledge Base

​Overview

​Data Model

​File Constraints

​API Endpoints

​List Knowledge Bases

​Create Knowledge Base

​Get Knowledge Base Details

​Update Knowledge Base

​Delete Knowledge Base

​Integration with Streaming Avatar

​Using Knowledge Base in Streaming Avatar Sessions

​Error Codes

​Complete Workflow Example

Overview

Data Model

File Constraints

API Endpoints

List Knowledge Bases

Create Knowledge Base

Get Knowledge Base Details

Update Knowledge Base

Delete Knowledge Base

Integration with Streaming Avatar

Using Knowledge Base in Streaming Avatar Sessions

Error Codes

Complete Workflow Example