---
title: "Logs"
description: "Get the logs of a specific live algorithm."
canonical: https://www.quantconnect.com/docs/v2/cloud-platform/api-reference/live-management/read-live-algorithm/logs
markdown: https://www.quantconnect.com/docs/v2/cloud-platform/api-reference/live-management/read-live-algorithm/logs.md
language: python
source: https://github.com/QuantConnect/Documentation/tree/master/01%20Cloud%20Platform/99%20API%20Reference/07%20Live%20Management/02%20Read%20Live%20Algorithm/07%20Logs
modified: 2026-10-31
index: https://www.quantconnect.com/llms.txt
---

# Logs

[Documentation](https://www.quantconnect.com/docs/v2.md) > [Cloud Platform](https://www.quantconnect.com/docs/v2/cloud-platform.md) > [API Reference](https://www.quantconnect.com/docs/v2/cloud-platform/api-reference.md) > [Live Management](https://www.quantconnect.com/docs/v2/cloud-platform/api-reference/live-management.md) > [Read Live Algorithm](https://www.quantconnect.com/docs/v2/cloud-platform/api-reference/live-management/read-live-algorithm.md) > Logs

> Code examples are shown in Python. Append `?lang=csharp` to this URL for the C# version of this page.

## Introduction

Get the logs of a live algorithm. The snapshot updates about every 5 minutes.

## Description

This endpoint returns a range of lines and can filter them by keyword. To get the logs of all the live deployments in one request, call the [/live/export/logs](https://www.quantconnect.com/docs/v2/cloud-platform/api-reference/live-management/read-live-algorithm/export-logs.md) endpoint, which returns a text file.

## Request

Information about the algorithm to read live logs from. The `/live/logs/read` API accepts requests in the following format:

| `ReadLiveLogsRequest` Model - Request to read the logs of a specific algorithm. |  |
| --- | --- |
| projectId | `integer required example: 23456789` Id of the project that contains the live running algorithm. |
| algorithmId | `string required example: L-6e9d8a78f5af89d401f630585be90e43` Deploy Id (Algorithm Id) of the live running algorithm. |
| startLine | `integer required` Start line (inclusive) of logs to read. The lines numbers start at 0. |
| endLine | `integer required` End line (exclusive) of logs to read, where endLine - startLine <= 250. |
| deploymentLogs | `boolean` Indicates if only the given deployment logs should be included in the response. |
| query | `string example: error` Case-insensitive keyword to filter the log lines. The startLine and endLine index the lines that contain the keyword. To read all the lines, omit it or set it to null or an empty string. |
| Example | `{ "projectId": 23456789, "algorithmId": "L-6e9d8a78f5af89d401f630585be90e43", "startLine": 0, "endLine": 0, "deploymentLogs": true, "query": "error" }` |

## Responses

The `/live/logs/read` API provides a response in the following format:

### 200 Success

| `ReadLiveLogsResponse` Model - Logs from a live algorithm. |  |
| --- | --- |
| logs | `string Array` List of logs from the live algorithm. |
| length | `integer` Total amount of rows in the logs across all live deployments for this project that match the query. |
| deploymentOffset | `integer` Number of log rows before the given deployment (the `algorithmId` in the request). It counts all the rows, even if you provide a query. |
| success | `boolean` Indicate if the API request was successful. |
| errors | `string Array` List of errors with the API call. |
| Example | `{ "logs": [ "string" ], "length": 0, "deploymentOffset": 0, "success": true, "errors": [ "string" ] }` |

### 401 Authentication Error

| `UnauthorizedError` Model - Unauthorized response from the API. Key is missing, invalid, or timestamp is too old for hash. |  |
| --- | --- |
| www_authenticate | `string` Header |

## Examples

The following example demonstrates listing, creating, reading, and updating live algorithms of a project through the cloud API.

```
from base64 import b64encode
from hashlib import sha256
from time import time
from requests import get, post
BASE_URL = 'https://www.quantconnect.com/api/v2/'

# You need to replace these with your actual credentials.
# You can request your credentials at https://www.quantconnect.com/settings/
# You can find our organization ID at https://www.quantconnect.com/organization/
USER_ID = 0
API_TOKEN = '____'
ORGANIZATION_ID = '____'

def get_headers():
    # Get timestamp
    timestamp = f'{int(time())}'
    time_stamped_token = f'{API_TOKEN}:{timestamp}'.encode('utf-8')

    # Get hased API token
    hashed_token = sha256(time_stamped_token).hexdigest()
    authentication = f'{USER_ID}:{hashed_token}'.encode('utf-8')
    authentication = b64encode(authentication).decode('ascii')

    # Create headers dictionary.
    return {
        'Authorization': f'Basic {authentication}',
        'Timestamp': timestamp
    }

# Authenticate to verify credentials
response = post(f'{BASE_URL}/authenticate', headers = get_headers())
print(response.json())

# --------------------

### List Live Algorithms
# Define placeholder IDs for project, compilation and node (replace with actual values)
project_id = 12345678
compile_id = "compile_id..."
node_id = "node_id..."
# Prepare data payload to list the past and current deployments of the project
payload = {
    "projectId": project_id  # ID of the project
}
# Send a POST request to the /live/list endpoint to list algorithms
response = post(f'{BASE_URL}/live/list', headers=get_headers(), json=payload)
# Parse the JSON response into python managable dict
result = response.json()
deployments = result['live'] if result['success'] else []
# The most recent deployment of the project, if any
latest = max(deployments, key=lambda x: x['launched'], default=None)
print(f"Live deployments: {len(deployments)}, latest: {latest['deployId'] if latest else None}")

### Create Live Algorithm
# Deploy only if the project has no running deployment
if latest is None or latest['status'] != 'Running':
    # Prepare the data payload for creating a live algorithm with necessary details
    payload = {
        "versionId": -1,  # Use the latest version of LEAN
        "projectId": project_id,  # ID of the project to deploy as a live algorithm
        "compileId": compile_id,  # Compilation ID for the algorithm code
        "nodeId": node_id,  # Node ID where the algorithm will run
        "brokerage": {  # Brokerage configuration for live trading
            "id": "QuantConnectBrokerage"  # Paper trading brokerage identifier
        },
        "dataProviders": {  # Data provider configuration
            "QuantConnectBrokerage": {
                "id": "QuantConnectBrokerage"  # Data provider identifier
            }
        },
        "parameters": {}  # Optional algorithm parameters (empty in this example)
    }
    # Send a POST request to the /live/create endpoint to deploy the algorithm
    response = post(f'{BASE_URL}/live/create', headers=get_headers(), json=payload)
    # Parse the JSON response into python managable dict from the API
    result = response.json()
    # Check if the request was successful and print the result
    if result['success']:
        print("Live Algorithm Created Successfully:")
        print(result)

### Read Live Algorithm Statistics
# Prepare data payload with the project ID to fetch the statistics of its latest deployment
payload = {
    "projectId": project_id  # ID of the project
}
# Send a POST request to the /live/read endpoint to get algorithm statistics
response = post(f'{BASE_URL}/live/read', headers=get_headers(), json=payload)
# Parse the JSON response into python managable dict
result = response.json()
# Check if the request was successful and print the statistics
if result['success']:
    print("Live Algorithm Statistics:")
    print(result)

### Liquidate Live Algorithm
# Prepare data payload with project ID to liquidate the algorithm
payload = {
    "projectId": project_id  # ID of the project to liquidate
}
# Send a POST request to the /live/update/liquidate endpoint to liquidate
response = post(f'{BASE_URL}/live/update/liquidate', headers=get_headers(), json=payload)
# Parse the JSON response into python managable dict
result = response.json()
# Check if the request was successful and print the result
if result['success']:
    print("Live Algorithm Liquidated Successfully:")
    print(result)

### Stop Live Algorithm
# Prepare data payload with project ID to stop the algorithm
payload = {
    "projectId": project_id  # ID of the project to stop
}
# Send a POST request to the /live/update/stop endpoint to stop the algorithm
response = post(f'{BASE_URL}/live/update/stop', headers=get_headers(), json=payload)
# Parse the JSON response into python managable dict
result = response.json()
# Check if the request was successful and print the result
if result['success']:
    print("Live Algorithm Stopped Successfully:")
    print(result)

### Export Orders
from decimal import Decimal
from time import sleep

# Download the orders of the last 750 days as a CSV file
payload = {
    "projectId": project_id  # ID of the project
}
response = post(f'{BASE_URL}/live/export/orders', headers=get_headers(), json=payload)
rows = response.text.splitlines()
header, recent = rows[0], rows[1:]
# The export starts at its first row. Older orders come from the /live/orders/read endpoint.
cutoff = recent[0].split(',')[1][:19].replace('T', ' ') if recent else '9999'

# Map the order type and status enums to the names in the CSV file
order_types = ["Market", "Limit", "Stop Market", "Stop Limit", "Market On Open", "Market On Close",
    "Option Exercise", "Limit If Touched", "Combo Market", "Combo Limit", "Combo Leg Limit", "Trailing Stop"]
order_statuses = ["New", "Submitted", "Partially Filled", "Filled", "", "Canceled", "None", "Invalid",
    "Cancel Pending", "Update Submitted"]

def number(value):
    text = format(Decimal(str(value)), 'f')
    return text.rstrip('0').rstrip('.') if '.' in text else text

# Read the older orders of each deployment that started before the cutoff
older = []
response = post(f'{BASE_URL}/live/list', headers=get_headers(), json={"projectId": project_id})
deployments = sorted(response.json()['live'], key=lambda x: x['launched'])
for deployment in deployments:
    if deployment['launched'] >= cutoff:
        continue
    start = 0
    while True:
        payload = {
            "projectId": project_id,  # ID of the project
            "deployId": deployment['deployId'],  # ID of the deployment
            "start": start,  # Starting index for orders
            "end": start + 1000  # Ending index for orders
        }
        result = post(f'{BASE_URL}/live/orders/read', headers=get_headers(), json=payload).json()
        # The first request can return a loading status while the orders are prepared
        if result.get('status') == 'loading':
            sleep(1)
            continue
        for order in result['orders']:
            if order['time'][:19].replace('T', ' ') >= cutoff:
                continue
            older.append(','.join([
                deployment['deployId'], order['time'], order['symbol']['value'],
                number(order['price']), number(order['quantity']),
                f'"{order_types[order["type"]]}"', f'"{order_statuses[order["status"]]}"',
                number(order['value']), '"' + order['tag'].replace('"', '""') + '" '
            ]))
        start += 1000
        if start >= result['length']:
            break

# Save all the orders in one CSV file
with open(f'orders-{project_id}.csv', 'w', newline='') as file:
    file.write('\n'.join([header] + older + recent) + '\n')
print(f"Saved {len(older) + len(recent)} orders")

### Export Trades
# Download the closed trades that opened since the start time as a CSV file
payload = {
    "projectId": project_id,  # ID of the project
    "start": 1717801200,  # Start time (Unix timestamp) for the trade entry time
    "end": 1743462000  # End time (Unix timestamp) for the trade exit time
}
response = post(f'{BASE_URL}/live/export/trades', headers=get_headers(), json=payload)
with open(f'trades-{project_id}.csv', 'w', newline='') as file:
    file.write(response.text)

### Export Insights
# Download the insights of all the live deployments of the project as a JSON file
payload = {
    "deployId": latest['deployId']  # ID of a deployment of the project
}
response = post(f'{BASE_URL}/live/export/insights', headers=get_headers(), json=payload)
with open(f'insights-{project_id}.json', 'w', newline='') as file:
    file.write(response.text)

### Export Logs
# Download the logs of all the live deployments of the project as a text file
payload = {
    "projectId": project_id,  # ID of the project
    "deployId": latest['deployId']  # ID of a deployment of the project, used to name the file
}
response = post(f'{BASE_URL}/live/export/logs', headers=get_headers(), json=payload)
with open(f'logs-{project_id}.txt', 'w', newline='') as file:
    file.write(response.text)
```