Asterpay MCP Server

Name: Asterpay MCP Server
Author: AsterPay

@AsterPay

Repository

Basic information

About Asterpay MCP Server

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Asterpay MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "asterpay": {
      "command": "npx",
      "args": [
        "-y",
        "@asterpay/mcp-server"
      ],
      "env": {
        "ASTERPAY_API_KEY": "<YOUR_API_KEY>"
      }
    }
  }
}

Asterpay MCP Server tools

List all products available from the merchant. Returns names, prices in EUR, descriptions, availability, and variants.

Get detailed information about a specific product by its ID. Use list_products first to find available product IDs.

Check if a specific product is currently in stock. Returns availability status, stock quantity, and current price.

Get business information for the merchant: operating hours, contact details, delivery zones and fees, return policy, and accepted payment methods.

Place an order with a merchant. Creates an intent, then submits the order. Returns x402 payment details that your agent's x402 client needs to execute. In mock mode, simulates a successful order.

Check the status of an existing order. Returns status (pending, confirmed, rejected, expired), payment info, and items.

Get x402 payment details for an order: facilitator endpoint, USDC amount, network, and payment header. Your agent needs an x402 client (e.g. @x402/axios) to execute the actual payment.

Activate a prepaid budget (AsterPay /budget) so the agent can spend on paid x402 APIs with a hard cap. Three modes: (1) pass an existing budget token (bud_...) to activate it; (2) pass amount_usd + tx_hash + wallet after your HUMAN sent the USDC, to create a new budget; (3) pass nothing to get funding instructions. An agent cannot grant itself money — a human must make the one-time USDC transfer (1-500 USDC on Base). Credited 1:1, no platform fee. Funding wallet is sanctions-screened (Chainalysis). No API key needed.

Check the prepaid /budget balance: remaining USD, total spent, recent calls with per-call prices. Use BEFORE expensive calls to spend gracefully. FREE, no API key needed.

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