Ethereum

Ethereum RPC FAQ

What is the Ethereum RPC URL?

The Ethereum Mainnet RPC URL with BoltRPC is `https://eu.endpoints.matrixed.link/rpc/ethereum?auth=YOUR_KEY`. Replace `YOUR_KEY` with your API key from [trial.boltrpc.io](https://trial.boltrpc.io). The chain ID is 1.

What is the function of Ethereum RPC?

Ethereum RPC allows your application to communicate with the Ethereum blockchain without running your own node. Through the RPC endpoint your app can read balances, query transactions, estimate gas, and broadcast signed transactions to the network. Every wallet, dApp, and trading bot uses an RPC endpoint to interact with Ethereum. The RPC interface follows the JSON-RPC 2.0 specification: each request is a POST call with a method name and parameters, and the response contains the result or an error. Common methods include `eth_call` for reading contract state, `eth_sendRawTransaction` for submitting signed transactions, `eth_getLogs` for fetching contract events, and `eth_blockNumber` for tracking the chain head.

What should I look for in an Ethereum RPC provider?

The most important factors are reliability, pricing model, and support. For pricing, look for transparent flat-rate plans where costs don't change based on which methods you call. Some providers use compute unit weighting where heavy calls multiply your costs unpredictably. BoltRPC uses straightforward fixed monthly plans — no surprise bills. For reliability, look for providers with a verifiable track record and production clients you can reference. For support, look for human access on paid plans, not just documentation links. Infrastructure certifications like ISO 27001:2022 are worth checking if your team has compliance or procurement requirements.

How do I add Ethereum to MetaMask?

Ethereum is already built into MetaMask by default. To use BoltRPC as your Ethereum RPC, go to Settings, then Networks, then Ethereum Mainnet, then Edit, and replace the RPC URL with `https://eu.endpoints.matrixed.link/rpc/ethereum?auth=YOUR_KEY`.

What is the difference between an Ethereum RPC endpoint and an Ethereum node?

A node is the full Ethereum client software running on a server. An RPC endpoint is the URL you connect to in order to interact with that node. When you use BoltRPC, you get the RPC endpoint. BoltRPC runs and maintains the nodes.

Does BoltRPC support WebSocket for Ethereum?

Yes. BoltRPC provides WebSocket endpoints for Ethereum at `wss://eu.endpoints.matrixed.link/ws/ethereum?auth=YOUR_KEY`. WebSocket is used for subscribing to real-time Ethereum events: new blocks, pending transactions, and contract event logs via `eth_subscribe`.

What is the Ethereum finality time?

Ethereum achieves finality after two epochs, which takes approximately 12 to 13 minutes. A transaction that appears in a block is included quickly, but cryptographic finality, meaning it cannot be reorganized, comes after the epoch boundary. For most applications, a transaction with several confirmations is sufficient. Applications like bridges and cross-chain protocols typically wait for full finality.