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OP

OP

OP Mainnet

Connect to OP Mainnet with BoltRPC's Optimism RPC endpoint. Flat-rate pricing from $49/mo. Free 2-week trial, no credit card required.

Chain ID: 10 JSON-RPC 2.0 WebSocket
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Latency

Trusted by

Chainlink Enjin Tiingo Gains Network

Quick Connect

Add this endpoint to your application to start making requests.

HTTPS
https://eu.endpoints.matrixed.link/rpc/optimism?auth=YOUR_KEY
WebSocket
wss://eu.endpoints.matrixed.link/ws/optimism?auth=YOUR_KEY

Replace YOUR_KEY with your API key. Get a free key →

Connect in 60 Seconds

Choose your preferred library and start building.

import { ethers } from "ethers";

const provider = new ethers.JsonRpcProvider(
  "https://eu.endpoints.matrixed.link/rpc/optimism?auth=YOUR_KEY"
);

Why BoltRPC for OP

Flat pricing for governance-heavy protocols

Optimism hosts protocols with active on-chain governance: proposal submissions, vote tallies, and execution calls. Governance-heavy protocols issue bursts of eth_getLogs queries to track vote events and proposal state. BoltRPC's flat pricing means governance query patterns do not inflate your bill.

The foundation of the Superchain

Optimism (OP Stack) is the foundation for the Superchain. Base, Mode, Zora, and dozens of other chains all run on OP Stack. As the Superchain ecosystem grows, Optimism's own RPC demand increases alongside it.

Superchain multi-chain support from one provider

Building on multiple OP Stack chains? BoltRPC supports Optimism and Base from one provider with one API key and a consistent endpoint format. Switching between Superchain chains requires only changing the network slug.

WebSocket for cross-chain message monitoring

The OP Stack bridge generates events as messages pass between OP Mainnet and Ethereum. Subscribe via WebSocket to track cross-chain state in real time.

Full EVM compatibility

Any Ethereum code works on Optimism with a single endpoint change. Identical Solidity, identical ABIs, identical tooling.

Reliable infrastructure for sequencer-dependent apps

OP Mainnet relies on a centralized sequencer for transaction ordering. Apps that need to track sequencer output precisely, for MEV protection or transaction ordering strategies, require an RPC that keeps up with the sequencer without delays.

Supported Methods

Full OP JSON-RPC specification support.

Standard Methods

eth_call eth_getLogs eth_getTransactionReceipt eth_blockNumber eth_estimateGas

OP RPC FAQ

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