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xenarch-mcp

Xenarch — x402 MCP server for AI agent payments. Non-custodial, USDC on Base L2.

xenarch-aixenarch-ai/xenarch-mcp★ 1Updated Jul 8, 2026

server.json

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "io.github.xenarch-ai/xenarch-mcp",
  "description": "Xenarch — x402 MCP server for AI agent payments. Non-custodial, USDC on Base L2.",
  "repository": {
    "url": "https://github.com/xenarch-ai/xenarch-mcp",
    "source": "github"
  },
  "version": "1.3.1",
  "websiteUrl": "https://xenarch.com",
  "packages": [
    {
      "registryType": "npm",
      "identifier": "@xenarch/agent-mcp",
      "version": "1.3.1",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "Wallet private key (hex, 0x-prefixed). Auto-generates on first run if omitted.",
          "format": "string",
          "isSecret": true,
          "name": "XENARCH_PRIVATE_KEY"
        },
        {
          "description": "Base RPC endpoint URL",
          "format": "string",
          "name": "XENARCH_RPC_URL"
        },
        {
          "description": "Network for payments (base or base-sepolia)",
          "format": "string",
          "name": "XENARCH_NETWORK"
        },
        {
          "description": "Local per-call payment cap in USDC (default 1.00). The only spending ceiling in standalone mode; set 0 to disable. Connect XENARCH_API_TOKEN for managed per-tx/daily/monthly caps.",
          "format": "string",
          "name": "XENARCH_MAX_PAYMENT_USD"
        }
      ]
    },
    {
      "registryType": "npm",
      "identifier": "@xenarch/agent-mcp",
      "version": "1.1.0",
      "transport": {
        "type": "streamable-http",
        "url": "https://mcp.xenarch.dev/mcp"
      },
      "environmentVariables": [
        {
          "description": "Wallet private key (hex, 0x-prefixed). Auto-generates on first run if omitted.",
          "format": "string",
          "isSecret": true,
          "name": "XENARCH_PRIVATE_KEY"
        },
        {
          "description": "Base RPC endpoint URL",
          "format": "string",
          "name": "XENARCH_RPC_URL"
        },
        {
          "description": "Network for payments (base or base-sepolia)",
          "format": "string",
          "name": "XENARCH_NETWORK"
        },
        {
          "description": "Local per-call payment cap in USDC (default 1.00). The only spending ceiling in standalone mode; set 0 to disable. Connect XENARCH_API_TOKEN for managed per-tx/daily/monthly caps.",
          "format": "string",
          "name": "XENARCH_MAX_PAYMENT_USD"
        },
        {
          "description": "Port for HTTP server (default: 3000)",
          "format": "string",
          "name": "PORT"
        },
        {
          "description": "Set to 'http' to enable HTTP transport",
          "isRequired": true,
          "format": "string",
          "name": "TRANSPORT"
        }
      ]
    }
  ]
}

Permissions

DeclaredDetected
Runs code—node
Installs—npm:@xenarch/agent-mcp@1.3.1npm:@xenarch/agent-mcp@1.1.0
Runs install scripts—None
NetworkNoneNone
Needs credentialsXENARCH_PRIVATE_KEYXENARCH_PRIVATE_KEY
Outside the workspace—None
Agent tools—None

Checks

Low risk · Nothing worth a warning was found.

Not reviewed by a person · Checked by rules; the model review is not switched on yet.

Versions

  1. #11.3.1latestOct 7, 2026