tech.vauban/pay-mcp

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-10-23T13:05:30.792606Z",
      "publishedAt": "2026-10-23T13:05:30.792606Z",
      "statusChangedAt": "2026-10-23T13:05:30.792606Z"
    }
  },
  "server": {
    "name": "tech.vauban/pay-mcp",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "0.19.0",
    "packages": [
      {
        "version": "0.19.0",
        "transport": {
          "type": "stdio"
        },
        "identifier": "@vauban-pay/mcp",
        "registryType": "npm",
        "environmentVariables": [
          {
            "name": "STARKNET_RPC_URL",
            "description": "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."
          },
          {
            "name": "PAY_MCP_SEPOLIA_ACCOUNT_ADDRESS",
            "description": "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."
          },
          {
            "name": "PAY_MCP_SEPOLIA_PRIVATE_KEY",
            "isSecret": true,
            "description": "Private key for that account. Optional; never required to try the tools."
          },
          {
            "name": "PAY_MCP_STANDARD_X402_PAYEES",
            "description": "Standard x402 path (Starknet): comma-separated payTo addresses pay_for_resource may pay. Empty pays nobody (fail closed). * pays any payee: avoid it."
          },
          {
            "name": "PAY_MCP_STANDARD_X402_MAX_WEI",
            "description": "Standard x402 path: cap on one payment in atomic units (default 0.1 STRK)."
          },
          {
            "name": "PAY_MCP_STANDARD_X402_ACCOUNT_ADDRESS",
            "description": "Standard x402 path: a signer of its own (falls back to PAY_MCP_SEPOLIA_*)."
          },
          {
            "name": "PAY_MCP_STANDARD_X402_PRIVATE_KEY",
            "isSecret": true,
            "description": "Private key for that account. Optional."
          },
          {
            "name": "PAY_MCP_EVM_KEYSTORE_PATH",
            "description": "EVM path: path to your Web3 Secret Storage v3 keystore. Never a key in the environment."
          },
          {
            "name": "PAY_MCP_EVM_PASSWORD_PATH",
            "description": "EVM path: path to the file holding that keystore's password."
          },
          {
            "name": "PAY_MCP_EVM_NETWORKS",
            "description": "EVM path: comma-separated CAIP-2 networks pay_for_resource may pay on, e.g. eip155:84532. Empty pays nothing (fail closed)."
          },
          {
            "name": "PAY_MCP_EVM_PAYEES",
            "description": "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."
          },
          {
            "name": "PAY_MCP_EVM_MAX_PER_PAYMENT",
            "description": "EVM path: cap on one payment, in atomic units of the asset (1000000 = 1 USDC). No default: unset refuses."
          },
          {
            "name": "PAY_MCP_EVM_MAX_PER_SESSION",
            "description": "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."
          },
          {
            "name": "PAY_MCP_EVM_I_ACCEPT_MAINNET_SPEND",
            "description": "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."
          },
          {
            "name": "PAY_MCP_EVM_ASSETS",
            "description": "EVM path: comma-separated <CAIP-2>/<token address> entries payable. Default: the network's known USDC only."
          }
        ]
      }
    ],
    "description": "x402 pay tools for MCP clients, plus a `buy` command: read the offer, consent, pay. Starknet, Base."
  }
}