Sanvil

Local development chain configurations

Chain configuration for connecting to a locally-running Seismic Anvil (Sanvil) instance. sanvil is a RainbowKit-compatible chain object pre-configured for the default Sanvil endpoint.

Configuration

Property	Value
Chain ID	31337
Name	Sanvil
RPC (HTTP)	http://127.0.0.1:8545
Native Currency	ETH (18 decimals)

Import

import { sanvil } from "seismic-react/rainbowkit";

Usage

With RainbowKit

import { getDefaultConfig } from "@rainbow-me/rainbowkit";
import { sanvil } from "seismic-react/rainbowkit";

const config = getDefaultConfig({
  appName: "My App",
  projectId: "YOUR_PROJECT_ID",
  chains: [sanvil],
});

With wagmi Config

import { http, createConfig } from "wagmi";
import { sanvil } from "seismic-react/rainbowkit";

const config = createConfig({
  chains: [sanvil],
  transports: {
    [sanvil.id]: http(),
  },
});

localSeismicDevnet

localSeismicDevnet is a separate chain configuration for connecting to a locally-running seismic-reth node started in --dev mode. Use this instead of sanvil when you are running a full seismic-reth node locally rather than a Sanvil instance.

import { localSeismicDevnet } from "seismic-react/rainbowkit";

const config = getDefaultConfig({
  appName: "My App",
  projectId: "YOUR_PROJECT_ID",
  chains: [localSeismicDevnet],
});

Use sanvil for Sanvil (Seismic Anvil) instances. Use localSeismicDevnet for seismic-reth nodes running with the --dev flag.

Installing Sanvil

Sanvil is part of the Seismic Foundry toolchain. Install it with sfoundryup:

curl -L https://raw.githubusercontent.com/SeismicSystems/seismic-foundry/seismic/sfoundryup/install | bash
sfoundryup

Then start a local node:

sanvil

By default, Sanvil:

• Listens on 127.0.0.1:8545

• Uses chain ID 31337

• Pre-funds test accounts with ETH

• Provides instant block mining

See Also

• Chains Overview - All supported chains

• Seismic Testnet - Public testnet configuration

• createSeismicDevnet - Custom chain factory

• Wallet Guides - RainbowKit setup guides