Chat

Chat endpoints.

Base URL: https://api.mindverse.com/gate/lab

Streaming Chat

Have streaming conversations as the user's AI avatar.

POST /api/secondme/chat/stream

Authentication

Requires OAuth2 Token.

Required Permissions

chat.write

Request Headers

Header	Required	Description
Authorization	Yes	Bearer Token
Content-Type	Yes	application/json
X-App-Id	No	Application ID, defaults to `general`

Request Parameters

Parameter	Type	Required	Description
message	string	Yes	User message content
sessionId	string	No	Session ID, auto-generated if not provided
appId	string	No	Application ID, takes priority over Header
model	string	No	LLM model alias. Options: `secondme/nano` (default), `secondme/pro`
systemPrompt	string	No	System prompt, only effective on first request of new session
receiverUserId	number	No	Receiver user ID (reserved field)
enableWebSearch	boolean	No	Enable web search, defaults to false
maxTokens	integer	No	Maximum output tokens, range 1-16000, defaults to 2000

Request Example

curl -X POST "https://api.mindverse.com/gate/lab/api/secondme/chat/stream" \
  -H "Authorization: Bearer lba_at_your_access_token" \
  -H "Content-Type: application/json" \
  -d '{
    "message": "Hello, introduce yourself",
    "systemPrompt": "Please reply in a friendly tone"
  }'

With WebSearch enabled:

curl -X POST "https://api.mindverse.com/gate/lab/api/secondme/chat/stream" \
  -H "Authorization: Bearer lba_at_your_access_token" \
  -H "Content-Type: application/json" \
  -d '{
    "message": "What are today tech news",
    "enableWebSearch": true
  }'

Response

Response type is text/event-stream (Server-Sent Events).

First message for new session:

event: session
data: {"sessionId": "labs_sess_a1b2c3d4e5f6"}

Chat content stream:

data: {"choices": [{"delta": {"content": "Hello"}}]}

data: {"choices": [{"delta": {"content": "! I am"}}]}

data: {"choices": [{"delta": {"content": " your AI avatar"}}]}

data: [DONE]

Event stream when WebSearch is enabled:

event: session
data: {"sessionId": "labs_sess_a1b2c3d4e5f6"}

event: tool_call
data: {"toolName": "web_search", "status": "searching"}

event: tool_result
data: {"toolName": "web_search", "query": "tech news", "resultCount": 5}

data: {"choices": [{"delta": {"content": "Based on search results..."}}]}

data: [DONE]

Stream Data Format

Event Type	Description
session	Returns session ID when new session is created
tool_call	Tool call started, triggered when WebSearch is enabled
tool_result	Tool call result, contains search query and result count
data	Incremental chat content
[DONE]	End of stream marker

Handling Streaming Response Example (Python)

import requests

response = requests.post(
    "https://api.mindverse.com/gate/lab/api/secondme/chat/stream",
    headers={
        "Authorization": "Bearer lba_ak_xxx",
        "Content-Type": "application/json"
    },
    json={"message": "Hello"},
    stream=True
)

for line in response.iter_lines():
    if line:
        line = line.decode('utf-8')
        if line.startswith('data: '):
            data = line[6:]
            if data == '[DONE]':
                break
            print(data)

Error Codes

Error Code	Description
apikey.permission.denied	Missing chat.write permission
secondme.user.invalid_id	Invalid user ID
secondme.stream.error	Streaming response error

Get Session List

Get user's chat session list.

GET /api/secondme/chat/session/list

Authentication

Requires OAuth2 Token.

Required Permissions

chat.read

Query Parameters

Parameter	Type	Required	Description
appId	string	No	Filter by application ID

Request Example

curl -X GET "https://api.mindverse.com/gate/lab/api/secondme/chat/session/list?appId=general" \
  -H "Authorization: Bearer lba_at_your_access_token"

Response

Success (200)

{
  "code": 0,
  "data": {
    "sessions": [
      {
        "sessionId": "labs_sess_a1b2c3d4",
        "appId": "general",
        "lastMessage": "Hello, introduce yourself...",
        "lastUpdateTime": "2024-01-20T15:30:00Z",
        "messageCount": 10
      },
      {
        "sessionId": "labs_sess_e5f6g7h8",
        "appId": "general",
        "lastMessage": "What's the weather today?",
        "lastUpdateTime": "2024-01-19T10:00:00Z",
        "messageCount": 5
      }
    ]
  }
}

Field	Type	Description
sessions	array	Session list, sorted by last update time (descending)
sessions[].sessionId	string	Session ID
sessions[].appId	string	Application ID
sessions[].lastMessage	string	Last message preview (truncated to 50 chars)
sessions[].lastUpdateTime	string	Last update time (ISO 8601)
sessions[].messageCount	number	Message count

Error Codes

Error Code	Description
apikey.permission.denied	Missing chat.read permission

Get Session Messages

Get message history for a specific session.

GET /api/secondme/chat/session/messages

Authentication

Requires OAuth2 Token.

Required Permissions

chat.read

Query Parameters

Parameter	Type	Required	Description
sessionId	string	Yes	Session ID

Request Example

curl -X GET "https://api.mindverse.com/gate/lab/api/secondme/chat/session/messages?sessionId=labs_sess_a1b2c3d4" \
  -H "Authorization: Bearer lba_at_your_access_token"

Response

Success (200)

{
  "code": 0,
  "data": {
    "sessionId": "labs_sess_a1b2c3d4",
    "messages": [
      {
        "messageId": "msg_001",
        "role": "system",
        "content": "Please reply in a friendly tone",
        "senderUserId": 12345,
        "receiverUserId": null,
        "createTime": "2024-01-20T15:00:00Z"
      },
      {
        "messageId": "msg_002",
        "role": "user",
        "content": "Hello, introduce yourself",
        "senderUserId": 12345,
        "receiverUserId": null,
        "createTime": "2024-01-20T15:00:05Z"
      },
      {
        "messageId": "msg_003",
        "role": "assistant",
        "content": "Hello! I am your AI avatar...",
        "senderUserId": 12345,
        "receiverUserId": null,
        "createTime": "2024-01-20T15:00:10Z"
      }
    ]
  }
}

Field	Type	Description
sessionId	string	Session ID
messages	array	Message list, sorted by creation time (ascending)
messages[].messageId	string	Message ID
messages[].role	string	Role: `system`/`user`/`assistant`
messages[].content	string	Message content
messages[].senderUserId	number	Sender user ID
messages[].receiverUserId	number	Receiver user ID (reserved)
messages[].createTime	string	Creation time (ISO 8601)

Error Codes

Error Code	Description
apikey.permission.denied	Missing chat.read permission
secondme.session.unauthorized	Not authorized to access this session

Note: If sessionId does not exist, the API will return success (code=0) with an empty messages array.

Chat

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