Pay MCP Server

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add pay-mcp -- npx -y @vauban-pay/mcp

{
  "mcpServers": {
    "pay-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@vauban-pay/mcp"
      ]
    }
  }
}

[mcp_servers.pay-mcp]
command = "npx"
args = ["-y", "@vauban-pay/mcp"]

{
  "mcpServers": {
    "pay-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@vauban-pay/mcp"
      ]
    }
  }
}

{
  "servers": {
    "pay-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@vauban-pay/mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: STARKNET_RPC_URL (Starknet RPC endpoint. Optional. The buy command contacts no node unless you name one (a Starknet mainnet node; the chain it serves must then be the offer's). The chain-reading tools default to a public node not operated by Vauban), PAY_MCP_SEPOLIA_ACCOUNT_ADDRESS (Starknet Sepolia account address for make_payment signer mode. Optional; without it make_payment uses the sponsored mode, which calls the sponsor over the network and settles a real Sepolia transfer it funds), PAY_MCP_SEPOLIA_PRIVATE_KEY (Private key for that account. Optional; never required to try the tools), PAY_MCP_STANDARD_X402_PAYEES (Standard x402 path (Starknet): comma-separated payTo addresses pay_for_resource may pay. Empty pays nobody (fail closed). * pays any payee: avoid it), PAY_MCP_STANDARD_X402_MAX_WEI (Standard x402 path: cap on one payment in atomic units (default 0.1 STRK)), PAY_MCP_STANDARD_X402_ACCOUNT_ADDRESS (Standard x402 path: a signer of its own (falls back to PAY_MCP_SEPOLIA_*)), PAY_MCP_STANDARD_X402_PRIVATE_KEY (Private key for that account. Optional), PAY_MCP_EVM_KEYSTORE_PATH (EVM path: path to your Web3 Secret Storage v3 keystore. Never a key in the environment), PAY_MCP_EVM_PASSWORD_PATH (EVM path: path to the file holding that keystore's password), PAY_MCP_EVM_NETWORKS (EVM path: comma-separated CAIP-2 networks pay_for_resource may pay on, e.g. eip155:84532. Empty pays nothing (fail closed)), PAY_MCP_EVM_PAYEES (EVM path: comma-separated payTo addresses pay_for_resource may pay. Empty pays nobody (fail closed). * pays any payee, up to the session cap: avoid it), PAY_MCP_EVM_MAX_PER_PAYMENT (EVM path: cap on one payment, in atomic units of the asset (1000000 = 1 USDC). No default: unset refuses), PAY_MCP_EVM_MAX_PER_SESSION (EVM path: cap on the total value of the signed authorizations this process hands over, per network and asset, never credited back. No default: unset refuses), PAY_MCP_EVM_I_ACCEPT_MAINNET_SPEND (EVM path: comma-separated CAIP-2 value networks you consent to spend real money on, each named (e.g. eip155:8453). Required for any network other than Base Sepolia and Ethereum Sepolia), PAY_MCP_EVM_ASSETS (EVM path: comma-separated <CAIP-2>/<token address> entries payable. Default: the network's known USDC only).