OtterEVM Documentation

Documentation, integration guides, and protocol specifications

Why OtterEVM?

Existing blockchains were not designed with payments as a primary use case. OtterEVM was built from the ground up to solve the unique challenges of payment processing at scale:

• Sub-second Finality

  Transactions confirm in under 400ms, enabling real-time payment experiences that rival traditional payment rails.

• 100,000+ TPS

  Parallel execution engine processes over 100,000 transactions per second, handling enterprise-grade payment volumes.

• Near-zero Fees

  Transaction costs under $0.001, making micropayments and high-frequency transactions economically viable.

• Full EVM Compatibility

  Deploy existing Solidity contracts without modification. Use Hardhat, Foundry, and all your favorite tools.

• Built-in Compliance

  Native support for KYC/AML workflows, transaction screening, and regulatory reporting at the protocol level.

Quick Start Guide

Get up and running with OtterEVM in minutes. Follow these steps to deploy your first smart contract on the testnet.

What Are Stablecoins?

Stablecoins are digital currencies designed to maintain a stable value, typically pegged 1:1 to a fiat currency like the US Dollar. They combine the programmability and speed of blockchain with the price stability needed for everyday payments.

On OtterEVM, stablecoins can be transferred globally in under 400ms with fees below $0.001, making them ideal for:

• Cross-border remittances and international payments
• Point-of-sale transactions and merchant settlements
• Payroll and contractor payments across borders
• B2B invoice settlement and supply chain finance
• Micropayments and subscription billing
• Treasury management and corporate cash flows

Payment Use Cases

OtterEVM powers a wide range of payment scenarios across industries:

Network Configuration

Use the following configuration to connect to OtterEVM networks.

Connect to Testnet

Follow the steps below to connect your development environment to the OtterEVM Testnet.

Using ethers.js

import { ethers } from "ethers";

const provider = new ethers.JsonRpcProvider(
  "https://rpc.testnet.otterevm.com"
);

// Get the latest block number
const blockNumber = await provider.getBlockNumber();
console.log("Latest block:", blockNumber);

// Connect wallet
const wallet = new ethers.Wallet(
  process.env.PRIVATE_KEY,
  provider
);

// Send a transaction
const tx = await wallet.sendTransaction({
  to: "0x...",
  value: ethers.parseEther("1.0")
});

// Confirmed in <400ms
await tx.wait();

Using Hardhat

import { HardhatUserConfig } from "hardhat/config";

const config: HardhatUserConfig = {
  solidity: "0.8.24",
  networks: {
    otterevm: {
      url: "https://rpc.testnet.otterevm.com",
      chainId: 42431,
      accounts: [process.env.PRIVATE_KEY]
    }
  }
};

export default config;

Using Foundry

# Deploy with Foundry
forge create src/Contract.sol:Contract \
  --rpc-url https://rpc.testnet.otterevm.com \
  --private-key $PRIVATE_KEY \
  --chain-id 42431

# Verify contract
forge verify-contract <ADDRESS> \
  src/Contract.sol:Contract \
  --verifier-url https://explorer.testnet.otterevm.com/api \
  --chain-id 42431

Testnet Faucet

Get free testnet OTR tokens to start building. Visit the faucet and enter your wallet address to receive tokens instantly.

Block Explorer

The OtterEVM Block Explorer lets you browse blocks, transactions, accounts, and smart contracts on the network.

Get In Touch

Connect with the OtterEVM team to discuss partnerships, integration opportunities, or any questions you may have.