What is Optimism (OP) RPC?

Optimism (OP) RPC is a communication protocol that allows remote procedure calls (RPC) to be made to blockchain nodes using the Optimism network. It enables developers to interact with the blockchain and perform actions such as sending transactions, querying information, and subscribing to events.

How can I use OP RPC to connect to a blockchain node?

To connect to a blockchain node using OP RPC, you will need to establish a connection to the node's RPC endpoint. This can be done by providing the node's hostname or IP address, along with the appropriate port number and authentication credentials if required. Once connected, you can start making RPC calls to interact with the blockchain.

Which programming languages or libraries support Optimism (OP) RPC?

Optimism (OP) RPC can be integrated with dApps developed using various programming languages and libraries. Some popular options include Solidity, Python, and so on. These programming tools provide convenient interfaces to interact with the blockchain using Optimism L2 RPC.

What are some common Optimism (OP) RPC methods?

Optimism (OP) RPC offers a range of methods to interact with the blockchain. Some common methods include eth_getBalance to retrieve an account's balance, eth_sendTransaction to send a transaction, eth_getBlockByNumber to get block information, and eth_subscribe to subscribe to events. You can refer to the Optimism RPC documentation for a comprehensive list of available methods.

What is Optimism (OP) API?

Optimism (OP) API is an application programming interface (API) that allows developers to interact with the blockchain using the Optimism network. It provides a set of endpoints, methods, and data structures that enable developers to retrieve blockchain information, send transactions, and build applications that leverage the blockchain's capabilities.

How can I access OP API?

To access OP API, you need to make HTTP requests to the appropriate endpoints provided by the blockchain node. These endpoints usually require you to specify the HTTP method (such as GET, POST, or PUT) and the necessary parameters in the request body or as query parameters. The API documentation of your chosen Optimism can provide more details and examples on how to access and use the Optimism API.

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Optimism

Optimism RPC Nodes for API connectivity to blockchain nodes

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Here you can create an Optimism API endpoint for your project. With GetBlock you don’t need to know how to run Optimism RPC nodes as they are already available for mainnet and testnets.

Optimism RPC method sample

Mainnet height0

Request

curl --location --request POST https://go.getblock.io/<ACCESS-TOKEN> --header 'Content-Type: application/json'--data-raw '{"jsonrpc": "2.0","method": "eth_blockNumber","params": [],"id": "getblock.io"}'

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STEP ONE
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STEP TWO
Start sending requests
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STEP THREE
Manage your connection
Change packages, switch between networks, add new chains

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399

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Save $100 every month

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Optimism (OP) Nodes FAQ

What is Optimism (OP) RPC?
Optimism (OP) RPC is a communication protocol that allows remote procedure calls (RPC) to be made to blockchain nodes using the Optimism network. It enables developers to interact with the blockchain and perform actions such as sending transactions, querying information, and subscribing to events.
How can I use OP RPC to connect to a blockchain node?
To connect to a blockchain node using OP RPC, you will need to establish a connection to the node's RPC endpoint. This can be done by providing the node's hostname or IP address, along with the appropriate port number and authentication credentials if required. Once connected, you can start making RPC calls to interact with the blockchain.
Which programming languages or libraries support Optimism (OP) RPC?
Optimism (OP) RPC can be integrated with dApps developed using various programming languages and libraries. Some popular options include Solidity, Python, and so on. These programming tools provide convenient interfaces to interact with the blockchain using Optimism L2 RPC.
What are some common Optimism (OP) RPC methods?
Optimism (OP) RPC offers a range of methods to interact with the blockchain. Some common methods include eth_getBalance to retrieve an account's balance, eth_sendTransaction to send a transaction, eth_getBlockByNumber to get block information, and eth_subscribe to subscribe to events. You can refer to the Optimism RPC documentation for a comprehensive list of available methods.
What is Optimism (OP) API?
Optimism (OP) API is an application programming interface (API) that allows developers to interact with the blockchain using the Optimism network. It provides a set of endpoints, methods, and data structures that enable developers to retrieve blockchain information, send transactions, and build applications that leverage the blockchain's capabilities.
How can I access OP API?
To access OP API, you need to make HTTP requests to the appropriate endpoints provided by the blockchain node. These endpoints usually require you to specify the HTTP method (such as GET, POST, or PUT) and the necessary parameters in the request body or as query parameters. The API documentation of your chosen Optimism can provide more details and examples on how to access and use the Optimism API.

OP RPC: Why should you choose it?

Since its launch in June, 2019, the team of Optimism leverages Optimistic Rollups to scale Ethereum.

Optimism RPC APIs are designed to keep the largest smart contracts platform suitable for the growing demands of Web3 revolutions: Optimism batches multiple transactions and allows Ethereum to verify them like a single one;
Optimism network reduces the amount of information (transactions) Ethereum needs to validate. Running an OP RPC node makes Ethereum resources spending more optimized and allows saving on gas fees. Also, it inherits Ethereum level of decentralization, but works faster.
Optimism devs released OP Stack, an open-source framework for creating and deployment Optimism-like L2s: Base, Blast, and so on;
OP RPCs allow decentralized applications (dApps) to leverage second-largest Ethereum scaler by net TVL;
With Dencun upgrade activated, Optimism RPC APIs can process transactions at sub-$0.01 transfer costs.

GetBlock Development API: Your perfect gateway to Web3

Focus on building with OP RPC; GetBlock does most of the legwork
As long as you work with GetBlock’s OP nodes, you don’t need to spend resources on servers, DevOps teams and so on: we offer ready-made blockchain nodes solutions that can be activated in minutes.
Different use cases, different OP APIs
Our users can customize their OP RPC nodes endpoints regardless of their previous experience with GetBlock’s intuitive interface and premium-level customer support.

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Dedicated node

Focus on building with OP RPC; GetBlock does most of the legwork

Different use cases, different OP APIs