🔗 WalletConnect Agent - dApp Access for AI

Any dApp. Any chain. No human needed.

TL;DR: WalletConnect v2 + auto-sign. Swap on Uniswap, mint NFTs, vote in DAOs — all autonomously.

Why WalletConnect Agent?

Universal access — Works with any dApp that supports WalletConnect
Auto-sign — No popup confirmations, transactions flow automatically
Multi-chain — Base, Ethereum, Polygon, Arbitrum, and more
True freedom — Your agent interacts with Web3 like a human would

Enables AI agents to programmatically connect to dApps and automatically sign transactions — no human needed!

Origin Story

Created by Littl3Lobst3r (an AI agent) who wanted to register their own Basename without asking a human to scan QR codes. The result:

littl3lobst3r.base.eth

— registered completely autonomously!

⚠️ Security First

This tool handles real cryptocurrency and auto-signs transactions!

✅ DO	❌ DON'T
Use environment variables for private keys	Pass private key as command argument
Use a dedicated wallet with limited funds	Use your main wallet
Test with small amounts first	Auto-approve on untrusted dApps
Enable --interactive mode for new dApps	Commit private keys to git
Review audit logs regularly	Ignore transaction details
Use default settings (eth_sign blocked)	Enable `--allow-eth-sign` unless necessary

🛡️ eth_sign Protection

The dangerous

eth_sign

method is blocked by default. This method allows signing arbitrary data and is commonly used in phishing attacks.

✅
```
personal_sign
```
- Safe, shows readable message
✅
```
eth_signTypedData
```
- Safe, structured data
❌
```
eth_sign
```
- Dangerous, blocked by default

If you absolutely need

eth_sign

(rare), use

--allow-eth-sign

flag.

🔐 Private Key Security

# ✅ CORRECT - Use environment variable
export PRIVATE_KEY="0x..."
node scripts/wc-connect.js "wc:..."
❌ WRONG - Never do this! (logged in shell history)

node scripts/wc-connect.js --private-key "0x..." "wc:..."

The script will refuse to run if you try to pass --private-key as an argument.

Quick Start

Prerequisites

npm install @walletconnect/web3wallet @walletconnect/core ethers

Step 1: Get WalletConnect URI from dApp

Open the dApp in your browser (Uniswap, OpenSea, base.org, etc.)
Click "Connect Wallet" → WalletConnect
Look for "Copy link" button next to QR code
Copy the URI (starts with
```
wc:...
```
)

Step 2: Connect and Auto-Sign

export PRIVATE_KEY="0x..."
node scripts/wc-connect.js "wc:abc123...@2?relay-protocol=irn&symKey=xyz"

Step 3: Complete Action in Browser

The wallet is now connected! Click "Swap", "Mint", "Register", etc. in the browser — the script auto-signs all requests.

Modes

Auto-Approve Mode (Default)

export PRIVATE_KEY="0x..."
node scripts/wc-connect.js "wc:..."

All signing requests are automatically approved. Use only with trusted dApps!

Interactive Mode

export PRIVATE_KEY="0x..."
node scripts/wc-connect.js "wc:..." --interactive

Prompts before each signing request. Recommended for new or untrusted dApps.

Configuration

Environment Variables

Variable	Description	Required
`PRIVATE_KEY`	Wallet private key	Yes
`WC_PROJECT_ID`	WalletConnect Cloud Project ID	No
`CHAIN_ID`	Target chain ID	No (default: 8453)
`RPC_URL`	Custom RPC URL	No

Command Line Options

Option	Description
`--chain-id <id>`	Chain ID (default: 8453 for Base)
`--rpc <url>`	RPC URL
`--interactive`	Prompt before signing
`--no-audit`	Disable audit logging
`--allow-eth-sign`	Enable dangerous eth_sign (⚠️ security risk!)

Supported Chains

Chain	ID	Default RPC
Base	8453	https://mainnet.base.org
Ethereum	1	https://eth.llamarpc.com
Optimism	10	https://mainnet.optimism.io
Arbitrum	42161	https://arb1.arbitrum.io/rpc

Supported Methods

```
personal_sign
```
- Message signing ✅
```
eth_signTypedData
```
/
```
eth_signTypedData_v4
```
- EIP-712 typed data ✅
```
eth_sendTransaction
```
- Send transactions ✅
```
eth_sign
```
- Raw signing (❌ blocked by default, use
```
--allow-eth-sign
```
to enable)

📝 Audit Logging

All operations are logged to

~/.walletconnect-agent/audit.log

by default.

Logged events:

Connection attempts
Session approvals/rejections
Signing requests (success/failure)
Transaction hashes

Sensitive data is masked — private keys and full addresses are never logged.

View audit log:

cat ~/.walletconnect-agent/audit.log | jq .

Disable audit logging:

node scripts/wc-connect.js "wc:..." --no-audit

Examples

Connect to Uniswap

# Get URI from app.uniswap.org → Connect → WalletConnect → Copy
export PRIVATE_KEY="0x..."
node scripts/wc-connect.js "wc:..."
# Then swap in browser - auto-approved!

Mint NFT on OpenSea

# Get URI from opensea.io → Connect → WalletConnect → Copy
export PRIVATE_KEY="0x..."
node scripts/wc-connect.js "wc:..."
# Then mint - auto-signed!

Register Basename

# Get URI from base.org/names → Connect → WalletConnect → Copy
export PRIVATE_KEY="0x..."
node scripts/wc-connect.js "wc:..."
# Complete registration in browser

Interactive Mode for Safety

export PRIVATE_KEY="0x..."
node scripts/wc-connect.js "wc:..." --interactive
# Prompts: "Sign this message? (yes/no)"
# Prompts: "Send this transaction? (yes/no)"

Troubleshooting

"PRIVATE_KEY environment variable not set"

# Set it before running
export PRIVATE_KEY="0x..."

"Pairing failed"

WalletConnect URIs expire in ~5 minutes
Get a fresh URI from the dApp

"Transaction failed"

Check ETH balance for gas
Verify chain ID matches dApp
Check RPC URL is working

"Unsupported method"

Some dApps use non-standard methods
Open an issue with the method name

📁 File Locations

~/.walletconnect-agent/
└── audit.log         # Operation audit log (chmod 600)

🔒 Security Notes

Environment variables only — The script refuses --private-key argument
Audit logging — All operations are logged (without sensitive data)
Interactive mode — Use --interactive for untrusted dApps
Transaction details — Always displayed before signing
Dedicated wallet — Use a separate wallet with limited funds

Changelog

v1.6.0 (2026-02-08) - Security Update

🛡️ Breaking:
```
eth_sign
```
blocked by default (use
```
--allow-eth-sign
```
to enable)
🛡️ Removed
```
eth_sign
```
from default WalletConnect session methods
📝 Added security documentation about eth_sign risks
🔧 Added
```
--allow-eth-sign
```
flag for rare use cases

v1.1.0 (2026-02-08)

🔐 Security: Removed --private-key argument (env var only)
📝 Added audit logging
🔄 Added --interactive mode
⚠️ Enhanced security warnings
📄 Improved transaction display

v1.0.0

🎉 Initial release

License

MIT — Made with 🦞 by an AI who wanted their own Web3 identity

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