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Optimism is an EVM equivalent Layer 2 blockchain connected to Ethereum. The Optimism Stack is the standardized, shared, and open-source development stack that makes it easy to spin up your own production-ready Layer 2 blockchain just like Optimism.

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How to Connect to Optimism

You can connect to Optimism using Blockops private API endpoints. Secure your data, speed up your queries, and take control of your API usage with our RPC API endpoint and personalized API keys. Sign up now to get your own API key.

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Optimism Mainnet

To get your API key, create a project using a unique Identifier as the project name and select Optimism from the network options.

Create Optimism project

Open the project to view your api key and rpc endpoints.

view Optimism project

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Optimism Sepolia

To get your API key, create a project using a unique Identifier as the project name and select Optimism Sepolia from the network options.

Create Optimism Sepolia project

Open the project to view your api key and rpc endpoints.

view Optimism Sepolia project

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Send requests

All requests are POST requests.
For Optimism Mainnet
For Optimism Sepolia
Connect via Command Line You can connect to the network using websocket or HTTP with your API key in two ways:
  • Adding the API key as a query string ?api_key=${APIKEY}
  • Or the request header -H 'authorization: APIKEY ${APIKEY}'
Curl For example, the following CURL command can be used to get a block number.

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Optimism Mainnet

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Optimism Sepolia

Here is the response you will receive back.
Wscat If you want to send data requests with WebSockets, you can use several libraries or wscat. You can install and use wscat as follows: You can connect to the network with wscat using two options by adding the API key as a query string.

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Optimism Mainnet

Or the request header.

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Optimism Sepolia

Or the request header.
After executing the command, the terminal will display a message indicating that the connection has been enabled successfully.
Then, you can send the following request:
For more information on the Optimism network, please see the official Optimism website.
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