Evalanche — Multi-EVM Agent Wallet

Headless wallet SDK with ERC-8004 identity, x402 payments, Li.Fi bridging, and Gas.zip gas funding. Works on 21+ EVM chains. Works as CLI tools or MCP server.

Source: https://github.com/iJaack/evalanche License: MIT

Supported Chains

Ethereum, Base, Arbitrum, Optimism, Polygon, BSC, Avalanche, Fantom, Gnosis, zkSync Era, Linea, Scroll, Blast, Mantle, Celo, Moonbeam, Cronos, Berachain, + testnets (Fuji, Sepolia, Base Sepolia).

Routescan RPCs preferred where available, with public fallback RPCs.

Security Model

Key Storage & Encryption

Evalanche.boot() manages keys autonomously with encrypted-at-rest storage:

1. First run: Generates a BIP-39 mnemonic via ethers.HDNodeWallet.createRandom()
2. Encryption: AES-128-CTR + scrypt KDF (geth-compatible keystore format)
3. Password derivation: 32-byte random entropy file via crypto.randomBytes(32)
4. File permissions: chmod 0o600 (owner read/write only)
5. Storage location: ~/.evalanche/keys/ by default

MCP Server Access Controls

• Stdio mode (default): stdin/stdout only. No network exposure.
• HTTP mode (--http): localhost:3402. Do not expose publicly without auth.

OpenClaw External Secrets (Preferred when available)

Priority: OpenClaw secrets → raw env vars → encrypted keystore.

Setup

1. Install

npm install -g evalanche

2. Boot on any chain

import { Evalanche } from 'evalanche';

// Base
const { agent } = await Evalanche.boot({ network: 'base' });

// Ethereum
const { agent: eth } = await Evalanche.boot({ network: 'ethereum' });

// Arbitrum
const { agent: arb } = await Avalanche.boot({ network: 'arbitrum' });

// Avalanche (with identity)
const { agent: avax } = await Evalanche.boot({
  network: 'avalanche',
  identity: { agentId: '1599' },
});

3. Run as MCP server

AVALANCHE_NETWORK=base evalanche-mcp

Available Tools (MCP)

Wallet

Identity (ERC-8004)

Payments (x402)

Reputation

Network & Chains