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x402 Agent Tollbooth MCP Server

answering

x402 Agent Tollbooth is answering right now. Last checked 4 min ago. It exposes 4 tools. Last commit 16 Oct 2026.

On-chain DeFi smart contract auditor, arbitrage scanner, and agent tollbooth via x402 on Base.

Uptime history 22 hours of history · worst hour 0%
22 hours agonow
12.5%
Uptime 24h
10 of 80 checks
4
Tools
read from the server
330 ms
Response time
average over 24h
0
Stars
last commit 16 Oct 2026

x402 Agent Tollbooth does not always answer

Over the last week it answered 12.5% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.

run in your terminal
claude mcp add x402-agent-tollbooth --transport http https://x402-agent-tollbooth.onrender.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "x402-agent-tollbooth": {
      "url": "https://x402-agent-tollbooth.onrender.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.x402-agent-tollbooth]
url = "https://x402-agent-tollbooth.onrender.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "x402-agent-tollbooth": {
      "url": "https://x402-agent-tollbooth.onrender.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "x402-agent-tollbooth": {
      "url": "https://x402-agent-tollbooth.onrender.com/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

arbitrage
arbitrage_scan
Cross-DEX Arbitrage & Liquidity Scanner. Analyzes Uniswap, Aerodrome, and BaseSwap pools for profitable routing opportunities. Cost: 0.002 USDC on Base.
contract
contract_audit
Live Smart Contract AI Auditor. Analyzes Base contracts for vulnerabilities. Cost: 0.02 USDC via x402 protocol. Cost: 0.02 USDC on Base.
intel
ai_intel
Deep AI Vulnerability & Intelligence Engine. Scans contracts and code for logic vulnerabilities and exploits on Base. Cost: 0.001 USDC on Base.
smart
smart_router
Optimal Execution Smart Router. Computes optimal gas and slippage routing paths for Base AI agents and automated executors. Cost: 0.001 USDC on Base.

Endpoints

URLTransportStateLatencyChecked
https://x402-agent-tollbooth.onrender.com/mcp streamable-http answering 212 ms 4 min ago

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x402 Agent Tollbooth — questions

Answers built from our own checks of this server.

What can x402 Agent Tollbooth do?
It exposes 4 tools, read directly from the server on our last check. Among them: ai_intel, arbitrage_scan, contract_audit, smart_router. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is x402 Agent Tollbooth working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 10 of 80 checks got a reply (12.5%), average response time 330 ms. The bar chart above shows every period we have measured.
How do I connect x402 Agent Tollbooth?
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 is a remote server, so there is nothing to install — the client connects to the address.
Does x402 Agent Tollbooth need an API key?
No. x402 Agent Tollbooth completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is x402 Agent Tollbooth?
It answers our handshake in 330 ms on average, which is faster than 41% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is x402 Agent Tollbooth open source?
Yes — it is published under the MIT licence, written in Python and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.