GStable AI Payment Skill

An OpenClaw skill that enables AI Agents to discover, negotiate, and execute cryptocurrency payments on behalf of users.

Features

• - 🔗 Retrieve payment link details and supported tokens
• 📝 Create payment sessions (EIP-712 signatures)
• 🔍 Query payment session status
• 💰 Check native and ERC20 balances
• 💳 Prepare payments and generate on-chain transaction calldata
• ✅ Check and automatically approve tokens
• ⚡ Execute on-chain payment transactions
• 🚀 One-command payment (pay) with automatic approval handling
• 🔐 Secure EIP-712 signing (private key stored in environment variables)
• ⛓️ Multi-chain support (Polygon, Ethereum, Arbitrum, Base)

Installation

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Configuration

Set environment variables:

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⚠️ Security note: Never commit private keys to version control.

Quick Start

1. Get payment link details

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2. Create payment session

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3. One-command payment (recommended)

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All Commands

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Supported Chains

Use uv run scripts/gstable-ai-payment.py get_link <link-id> to see exactly which chains and tokens are supported for a specific payment link.

Usage Examples

Complete payment flow

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Agent interaction example

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Payment Flow

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Environment Variables

Troubleshooting

"WALLETPRIVATEKEY not set"
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"Token not supported"
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"Session expired"
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"No RPC URL configured for chain"
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"Gas estimation failed" or "Transaction failed"

• - Ensure the wallet has enough native token (e.g., MATIC) to pay gas fees
• Ensure the wallet has enough token balance to complete the payment
• Check whether the token has been approved for the payment contract

Resources

• - GStable AI Payment Protocol: https://docs.gstable.io/zh-Hans/docs/category/ai-payment-protocol
• GStable AI Agent Integration: https://docs.gstable.io/zh-Hans/docs/category/ai-agent-integration
• GitHub: https://github.com/gstable/gstable-ai-payment-skill

License

MIT