Which integrations are available for this server?

Provides payment gateway tools for AI agents to discover and pay for gated content via USDC micropayments on Base, enabling CrewAI agents to access paid services directly on-chain without API keys or signup. Provides payment gateway tools for AI agents to discover and pay for gated content via USDC micropayments on Base, enabling LangChain agents to access paid services directly on-chain without API keys or signup. Provides payment gateway tools for AI agents to discover and pay for gated content via USDC micropayments on Base, enabling Python agents to access paid services directly on-chain without API keys or signup.

xenarch-mcp

npm License: MIT

MCP servers for the Xenarch payment network. Lets AI agents discover and pay for services via USDC micropayments on Base.

How It Works

1. Discover    xenarch_check_gate("example.com")
               → { gated: true, price_usd: "0.003", protocol: "x402" }

2. Pay         xenarch_pay("example.com")
               → USDC sent on Base via splitter contract
               → { access_token: "eyJ...", expires_at: "..." }

3. Access      Re-request the URL with Authorization: Bearer <token>
               → Full content returned

No API keys. No signup. The agent pays directly on-chain — Xenarch never holds funds.

Agent MCP Server

Three tools for AI agents:

Tool	Description
`xenarch_check_gate`	Check if a URL/domain has a payment gate. Returns pricing and payment details.
`xenarch_pay`	Pay for gated content. Executes USDC payment on Base via the splitter contract.
`xenarch_get_history`	View past payments made by this wallet.

Example Responses

{
  "gated": true,
  "gate_id": "7f3a1b2c-9d4e-4a8b-b6f1-2c3d4e5f6a7b",
  "price_usd": "0.003",
  "splitter": "0xC6D3a6B6fcCD6319432CDB72819cf317E88662ae",
  "collector": "0xabc123...publisher_wallet",
  "network": "base",
  "asset": "USDC",
  "protocol": "x402"
}

{
  "success": true,
  "tx_hash": "0xdef456...abc789",
  "block_number": 28451023,
  "amount_usd": "0.003",
  "url": "example.com",
  "access_token": "eyJhbGciOiJIUzI1NiJ9...",
  "expires_at": "2026-04-10T15:05:00Z",
  "wallet": "0x123...your_wallet"
}

{
  "payments": [
    {
      "domain": "example.com",
      "amount_usd": "0.003",
      "tx_hash": "0xdef456...abc789",
      "paid_at": "2026-04-10T14:35:00Z"
    }
  ],
  "total_spent_usd": "0.003000",
  "count": 1,
  "wallet": "0x123...your_wallet"
}

Setup

Configure your wallet:

mkdir -p ~/.xenarch
cat > ~/.xenarch/wallet.json << 'EOF'
{
  "privateKey": "0xYOUR_PRIVATE_KEY"
}
EOF
chmod 600 ~/.xenarch/wallet.json

Add to Claude Code:

claude mcp add xenarch -- npx @xenarch/agent-mcp

Or add to Claude Desktop / any MCP client:

{
  "mcpServers": {
    "xenarch": {
      "command": "npx",
      "args": ["@xenarch/agent-mcp"],
      "env": {
        "XENARCH_PRIVATE_KEY": "0xYOUR_PRIVATE_KEY"
      }
    }
  }
}

Environment Variables

Variable	Default	Description
`XENARCH_PRIVATE_KEY`	—	Wallet private key (overrides config file)
`XENARCH_RPC_URL`	`https://mainnet.base.org`	Base RPC endpoint
`XENARCH_API_BASE`	`https://api.xenarch.dev`	Xenarch platform API
`XENARCH_NETWORK`	`base`	Network (`base` or `base-sepolia`)
`XENARCH_AUTO_APPROVE_MAX`	—	Max USD to auto-approve without prompting

Examples

See xenarch-examples for working integration examples — Python agents, LangChain, CrewAI, Claude Desktop setup, and publisher middleware.

Development

npm install
npm run build

Structure

packages/
  shared/    — Payment logic, types, config (reused across servers)
  agent/     — MCP server for AI agents

License

MIT

This server cannot be installed

-

security - not tested

A

license - permissive license

-

quality - not tested

How are these scores calculated?

Resources

GitHub Repository

Need Help?

Related Servers

Xenarch Agent MCP