Self-sovereign EVM wallet for AI agents. Use when the user wants to create a crypto wallet, check balances, send ETH or ERC20 tokens, swap tokens, or interact with smart contracts. Supports Base, Ethe
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Self-sovereign EVM wallet. Private keys stored locally, no external API dependencies.
NEVER expose your private key!
~/.evm-wallet.jsonThe private key file (
~/.evm-wallet.jsonDetect workspace and skill directory:
SKILL_DIR=$(ls -d \ ~/openclaw/skills/evm-wallet \ ~/OpenClaw/skills/evm-wallet \ ~/clawd/skills/evm-wallet \ ~/moltbot/skills/evm-wallet \ ~/molt/skills/evm-wallet \ 2>/dev/null | head -1)
If code is not installed yet (no
src/if [ ! -d "$SKILL_DIR/src" ]; then git clone https://github.com/surfer77/evm-wallet-skill.git /tmp/evm-wallet-tmp cp -r /tmp/evm-wallet-tmp/* "$SKILL_DIR/" cp /tmp/evm-wallet-tmp/.gitignore "$SKILL_DIR/" 2>/dev/null rm -rf /tmp/evm-wallet-tmp cd "$SKILL_DIR" && npm install fi
For all commands below, always
cd "$SKILL_DIR"Generate a wallet (only needed once):
node src/setup.js --json
Returns:
{ "success": true, "address": "0x..." }The private key is stored at
~/.evm-wallet.jsonWhen user asks about balance, portfolio, or how much they have:
# Single chain node src/balance.js base --jsonAll chains at once
node src/balance.js --all --json
Specific ERC20 token
node src/balance.js base 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 --json
Always use
for parsing. Present results in a human-readable format.--json
When user wants to send, transfer, or pay someone:
# Native ETH node src/transfer.js <chain> <to_address> <amount> --yes --jsonERC20 token
node src/transfer.js <chain> <to_address> <amount> <token_address> --yes --json
⚠️ ALWAYS confirm with the user before executing transfers. Show them:
Only add
--yesWhen user wants to swap, trade, buy, or sell tokens:
# Get quote first node src/swap.js <chain> <from_token> <to_token> <amount> --quote-only --jsonExecute swap (after user confirms)
node src/swap.js <chain> <from_token> <to_token> <amount> --yes --json
eth--slippage <percent>⚠️ ALWAYS show the quote first and get user confirmation before executing.
When user wants to call a smart contract function:
# Read (free, no gas) node src/contract.js <chain> <contract_address> \ "<function_signature>" [args...] --jsonWrite (costs gas — confirm first)
node src/contract.js <chain> <contract_address>
"<function_signature>" [args...] --yes --json
Examples:
# Check USDC balance node src/contract.js base \ 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 \ "balanceOf(address)" 0xWALLET --jsonApprove token spending
node src/contract.js base
0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
"approve(address,uint256)" 0xSPENDER 1000000 --yes --json
node src/check-update.js --json
If an update is available, inform the user and offer to run:
cd "$SKILL_DIR" && git pull && npm install
| Chain | Native Token | Use For |
|---|---|---|
| base | ETH | Cheapest fees — default for testing |
| ethereum | ETH | Mainnet, highest fees |
| polygon | POL | Low fees |
| arbitrum | ETH | Low fees |
| optimism | ETH | Low fees |
Always recommend Base for first-time users (lowest gas fees).
0x833589fCD6eDb6E08f4c7C32D4f71b54bdA029130x42000000000000000000000000000000000000060xA0b86a33E6441b8a46a59DE4c4C5E8F5a6a7A8d00xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2~/.evm-wallet.jsonnode src/setup.js --jsonNo automatic installation available. Please visit the source repository for installation instructions.
View Installation Instructions
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