eth_chainId | Alchemy Docs

Returns the chain ID of the current network as a hexadecimal string.

apiKeystringRequiredDefaults to docs-demo

The chain ID of the current network in hexadecimal format.

1	import requests
2
3	url = "https://opt-mainnet.g.alchemy.com/v2/:apiKey"
4
5	payload = {}
6	headers = {"Content-Type": "application/json"}
7
8	response = requests.post(url, json=payload, headers=headers)
9
10	print(response.json())