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Xenarch MCP Server

by xenarch-ai Your server? Claim it
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Xenarch MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 120 installs a week from npm. Last commit 1 Aug 2026.

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

Installs per day peak 30 · avg 11 · +130% w/w
a month agotoday
120
Installs / week
npm · @xenarch/agent-mcp
1
Stars
7 open issues
1 Aug 2026
Last commit
0 releases in 90 days
MIT
License
TypeScript

Nothing serious here today

Today is the operative word: we check Xenarch MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

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.

run in your terminal
claude mcp add xenarch-mcp -- npx -y @xenarch/agent-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "xenarch-mcp": {
      "args": [
        "-y",
        "@xenarch/agent-mcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.xenarch-mcp]
command = "npx"
args = ["-y", "@xenarch/agent-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "xenarch-mcp": {
      "args": [
        "-y",
        "@xenarch/agent-mcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "xenarch-mcp": {
      "args": [
        "-y",
        "@xenarch/agent-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: XENARCH_PRIVATE_KEY (Wallet private key (hex, 0x-prefixed). Auto-generates on first run if omitted.), XENARCH_RPC_URL (Base RPC endpoint URL), XENARCH_NETWORK (Network for payments (base or base-sepolia)), XENARCH_MAX_PAYMENT_USD (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.), PORT (Port for HTTP server (default: 3000)), TRANSPORT (Set to 'http' to enable HTTP transport). The author declared them in the registry entry; get the values from the project itself.

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7 tools answering

Xenarch MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Xenarch MCP?
Xenarch MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @xenarch/agent-mcp was installed 120 times last week.
How do I connect Xenarch MCP?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls @xenarch/agent-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use Xenarch MCP?
The npm package @xenarch/agent-mcp was installed 120 times in the last week. Week over week that is +130%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Xenarch MCP open source?
Yes — it is published under the MIT licence, written in TypeScript, 1 stars on GitHub and 7 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.