Payment Link Reader

Fetch product info by payment link ID. Calls GStable API to get payment link details, returns product name, description, price, and supported payment tokens. Ideal for AI assistants parsing payment links and displaying product information.

A skill that fetches product information from a GStable Payment Link. It calls the GStable API - Get Payment Link endpoint and returns product details and supported payment methods.

Flow

Call API (GET /payment/link/:linkId)
        ↓
Return product info (name, description, price, payment tokens)

Installation (OpenClaw)

clawhub install payment-link-reader
cd ~/.openclaw/skills/payment-link-reader
npm install

For manual installation, copy the payment-link-reader directory to ~/.openclaw/skills/ or ./skills/, then run npm install.

Usage

# Fetch product info by link_id
npm run get-link -- <link_id>

Example:

npm run get-link -- lnk_BUDBgiGTWejFs8v0FbdpR3iJ83CG1tua

Output format (JSON):

{
  "linkId": "lnk_xxx",
  "linkName": "Premium Membership",
  "products": [
    {
      "name": "Premium Plan",
      "description": "Unlock all features",
      "imageUrl": "https://example.com/image.png",
      "quantity": 1,
      "unitPriceUSD": "1.00",
      "attributes": [{ "name": "Duration", "value": "1 Month" }]
    }
  ],
  "supportedPaymentTokens": [
    {
      "symbol": "USDC",
      "chainName": "Polygon",
      "chainId": "137",
      "amountInUSD": "3.00"
    }
  ]
}

API Reference

Field	Description
Endpoint	GET /payment/link/:linkId
Base URL	https://aipay.gstable.io/api/v1 (override via GSTABLE_API_BASE_URL)
Parameters	link_id required, format lnk_xxx
Documentation	[Get Payment Link

Agent Invocation Example

When the user provides a payment link or link_id, the Agent should run the following in the skill root directory:

npm run get-link -- <link_id>

Conversation example:

User: What's in this payment link lnk_BUDBgiGTWejFs8v0FbdpR3iJ83CG1tua?

Agent: [cd {baseDir} && npm run get-link -- lnk_BUDBgiGTWejFs8v0FbdpR3iJ83CG1tua]
       "This payment link contains: Premium Plan (1.00 USD each), supports USDC on Polygon, total 3.00 USD"

Note: {baseDir} is the skill directory path. Ensure npm install has been run before execution.

Environment Variables

Variable	Required	Description
GSTABLE_API_BASE_URL	No	API base URL, default https://aipay.gstable.io/api/v1

Response Format

When responding to the user, summarize the payment link information in a readable format including:

• Product name
• Product description
• Unit price
• Supported payment tokens
• Blockchain network

Use Cases

• AI assistant parsing user-shared payment links
• Displaying product list from payment links
• Fetching supported chains and token info
• Validating link before payment