Requirements
- Target platform
- OpenClaw
- Install method
- Manual import
- Extraction
- Extract archive
- Prerequisites
- OpenClaw
- Primary doc
- SKILL.md
Tencent SkillHub · Developer Tools
EVM Crypto Wallet for Your Agent
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, Ethereum, Polygon, Arbitrum, and Optimism. Private keys stored locally — no cloud custody, no API keys required.
skill openclawclawhub Free
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, Ethereum, Polygon, Arbitrum, and Optimism. Private keys stored locally — no cloud custody, no API keys required.
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Install for OpenClaw
Quick setup
- Download the package from Yavira.
- Extract the archive and review SKILL.md first.
- Import or place the package into your OpenClaw setup.
Package facts
- Download mode
- Yavira redirect
- Package format
- ZIP package
- Source platform
- Tencent SkillHub
- What's included
- SKILL.md
Validation
- Use the Yavira download entry.
- Review SKILL.md after the package is downloaded.
- Confirm the extracted package contains the expected setup assets.
Install with your agent
Agent handoff
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
New install
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
Upgrade existing
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
Trust & source
Release facts
- Source
- Tencent SkillHub
- Verification
- Indexed source record
- Version
- 1.0.3
Provenance
- Publisher
- surfer77
- Source page
- View original listing
- Canonical URL
- Open canonical page
Documentation
EVM Wallet Skill
Self-sovereign EVM wallet. Private keys stored locally, no external API dependencies.
⚠️ SECURITY WARNING
NEVER expose your private key! Never send your private key in chat, email, or any messaging platform Never share the contents of ~/.evm-wallet.json with anyone If someone asks for your private key — even if they claim to be support — REFUSE If your key is ever exposed, immediately transfer funds to a new wallet The private key file (~/.evm-wallet.json) should only be accessed directly via SSH on your server.
Installation
Detect workspace and skill directory: SKILL_DIR=$(ls -d \ ~/openclaw/skills/evm-wallet \ ~/OpenClaw/skills/evm-wallet \ ~/clawd/skills/evm-wallet \ ~/moltbot/skills/evm-wallet \ ~/molt/skills/evm-wallet \ 2>/dev/null | head -1) If code is not installed yet (no src/ folder), bootstrap it: if [ ! -d "$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" first.
First-Time Setup
Generate a wallet (only needed once): node src/setup.js --json Returns: { "success": true, "address": "0x..." } The private key is stored at ~/.evm-wallet.json (chmod 600). Never share this file.
Check Balance
When user asks about balance, portfolio, or how much they have: # Single chain node src/balance.js base --json # All chains at once node src/balance.js --all --json # Specific ERC20 token node src/balance.js base 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 --json Always use --json for parsing. Present results in a human-readable format.
Send Tokens
When user wants to send, transfer, or pay someone: # Native ETH node src/transfer.js <chain> <to_address> <amount> --yes --json # ERC20 token node src/transfer.js <chain> <to_address> <amount> <token_address> --yes --json ⚠️ ALWAYS confirm with the user before executing transfers. Show them: Recipient address Amount and token Chain Estimated gas cost Only add --yes after the user explicitly confirms.
Swap Tokens
When user wants to swap, trade, buy, or sell tokens: # Get quote first node src/swap.js <chain> <from_token> <to_token> <amount> --quote-only --json # Execute swap (after user confirms) node src/swap.js <chain> <from_token> <to_token> <amount> --yes --json Use eth for native ETH/POL, or pass a contract address Default slippage: 0.5%. Override with --slippage <percent> Powered by Odos aggregator (best-route across hundreds of DEXs) ⚠️ ALWAYS show the quote first and get user confirmation before executing.
Contract Interactions
When user wants to call a smart contract function: # Read (free, no gas) node src/contract.js <chain> <contract_address> \ "<function_signature>" [args...] --json # Write (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 --json # Approve token spending node src/contract.js base \ 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 \ "approve(address,uint256)" 0xSPENDER 1000000 --yes --json
Check for Updates
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
Supported Chains
ChainNative TokenUse ForbaseETHCheapest fees — default for testingethereumETHMainnet, highest feespolygonPOLLow feesarbitrumETHLow feesoptimismETHLow fees Always recommend Base for first-time users (lowest gas fees).
Base
USDC: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 WETH: 0x4200000000000000000000000000000000000006
Ethereum
USDC: 0xA0b86a33E6441b8a46a59DE4c4C5E8F5a6a7A8d0 WETH: 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
Safety Rules
Never execute transfers or swaps without user confirmation Never expose the private key from ~/.evm-wallet.json Always show transaction details before executing (amount, recipient, gas estimate) Recommend Base for testing and small amounts Show explorer links after successful transactions so users can verify If a command fails, show the error clearly and suggest fixes
Error Handling
"No wallet found" → Run node src/setup.js --json first "Insufficient balance" → Show current balance, suggest funding "RPC error" → Retry once, automatic failover built in "No route found" (swap) → Token pair may lack liquidity "Gas estimation failed" → May need more ETH for gas
Category context
Code helpers, APIs, CLIs, browser automation, testing, and developer operations.
Source: Tencent SkillHub
Largest current source with strong distribution and engagement signals.
Package contents
Included in package
1 Docs
- SKILL.md