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Base Token Facts

io.github.yankiifr/base-facts-mcp ยท v0.2.3

Base token checks for agents: simulated buy and sell, taxes, honeypots. Pay per call in USDC (x402).

Website Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add base-facts-mcp -e X402_PRIVATE_KEY=<X402_PRIVATE_KEY> -e SESSION_BUDGET_USD=<SESSION_BUDGET_USD> -- npx -y [email protected]
claude_desktop_config.json
{
  "mcpServers": {
    "base-facts-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "X402_PRIVATE_KEY": "<X402_PRIVATE_KEY>",
        "SESSION_BUDGET_USD": "<SESSION_BUDGET_USD>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "base-facts-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "X402_PRIVATE_KEY": "<X402_PRIVATE_KEY>",
        "SESSION_BUDGET_USD": "<SESSION_BUDGET_USD>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "base-facts-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "X402_PRIVATE_KEY": "<X402_PRIVATE_KEY>",
        "SESSION_BUDGET_USD": "<SESSION_BUDGET_USD>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
X402_PRIVATE_KEY
Optional, secret		Private key of a small x402 payer wallet holding a little USDC on Base (pays $0.002-$0.01 per call). Alternative: X402_PAYER_FILE.
SESSION_BUDGET_USD
Optional		Stop paying once this much was spent in the session (default 1).

Details

Package[email protected] (NPM, stdio)
First published6 Oct 2026
Last updated6 Oct 2026
Registry nameio.github.yankiifr/base-facts-mcp

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