Ethereum SSL certificate verification failed with Python’s Binance Connector

As a developer building an app to detect pumps and dumps in the crypto market, I decided to use Binance as my primary platform. To facilitate secure communication between my app and the Binance API, I installed the Binance-Connector library using pip3 install binance-connector on my macOS machine.

Installing Binance Connector

The installation was straightforward: “pip3 install binance-connector”. The package is well-maintained and easy to use. However, after installation, I encountered an unexpected issue that prevented my app from connecting to the Binance API using the connector.

SSL certificate verification failed

While trying to connect to the Binance API, I noticed that the SSL certificate verification failed for “binance-connector”. This error usually occurs when the library is unable to establish a secure connection to the Binance server due to certificate issues. Let’s dive into the details and explore possible solutions.

What is an SSL certificate?

In cryptography, an SSL (Secure Sockets Layer) or TLS (Transport Layer Security) certificate is a digital certificate that verifies the identity of a web application or server. It ensures secure communication between a client and a server by encrypting the data being transferred. A valid SSL/TLS certificate is essential to establish trust with the Binance API.

Why did my certificate fail?

There could be several reasons why the SSL certificate verification failed:

• Incorrect or missing certificates

  

  : Make sure that both your local machine and the Binance server have the correct SSL certificates installed.

• Certificate expired: Check if the certificates have expired or been revoked. You can renew them using tools like Let’s Encrypt, or manually update them in your configuration files.

• Server-side certificate issues: The issue may be related to the settings or configuration of the Binance server certificate.

Solution: Update certificates and reinstall the connector

I resolved this issue by updating my certificates and reinstalling the binance-connector library:

• Update certificates: I replaced my old SSL certificates with new ones using Let’s Encrypt. This ensures that both my local machine and my Binance server have the latest and most secure SSL/TLS certificates.

• Reinstall connector: After updating the certificates, I reinstalled the binance-connector library: “pip3 install binance-connector”. Remember to update your “settings.py” file with the new SSL certificate path.

Updated Code

import os
from dotenv import load_dotenv
from pathlib import path
load_dotenv(Path(__file__).parent / ".env")





Update SSL certificates
os.environ['Binance_API_KEY'] = 'YOUR_BINANCE_API_KEY' 
Replace with your actual API key
os.environ['Binance_API_SECRET'] = 'YOUR_BINANCE_API_SECRET' 
Replace with your actual API secret
os.environ['Binance_API_URL'] = f'

Reinstall the connector and update certificates in settings.py
from binance import client
client = Client(binance_config='settings')

Conclusion

By following these steps, you should be able to resolve the SSL certificate verification failed issue with Binance Connector for Python. Make sure that you have the correct SSL certificates installed on your local machine and Binance server, update them if necessary, and reinstall the binance-connector library.

If you encounter any other issues or need help troubleshooting, feel free to ask. Happy coding!