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Finance and crypto

Market Data (x402)

io.github.r0dell/market-data-mcp ยท v0.5.0

Paid-per-call data for agents: trading calendars, futures, macro, LEI, VAT, risk events (x402)

Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add market-data-mcp -e X402_KEY_FILE=<X402_KEY_FILE> -e X402_PRIVATE_KEY=<X402_PRIVATE_KEY> -e MAX_USDC_PER_CALL=<MAX_USDC_PER_CALL> -e MAX_USDC_PER_SESSION=<MAX_USDC_PER_SESSION> -- uvx x402-market-data-mcp==0.5.0
claude_desktop_config.json
{
  "mcpServers": {
    "market-data-mcp": {
      "command": "uvx",
      "args": [
        "x402-market-data-mcp==0.5.0"
      ],
      "env": {
        "X402_KEY_FILE": "<X402_KEY_FILE>",
        "X402_PRIVATE_KEY": "<X402_PRIVATE_KEY>",
        "MAX_USDC_PER_CALL": "<MAX_USDC_PER_CALL>",
        "MAX_USDC_PER_SESSION": "<MAX_USDC_PER_SESSION>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "market-data-mcp": {
      "command": "uvx",
      "args": [
        "x402-market-data-mcp==0.5.0"
      ],
      "env": {
        "X402_KEY_FILE": "<X402_KEY_FILE>",
        "X402_PRIVATE_KEY": "<X402_PRIVATE_KEY>",
        "MAX_USDC_PER_CALL": "<MAX_USDC_PER_CALL>",
        "MAX_USDC_PER_SESSION": "<MAX_USDC_PER_SESSION>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "market-data-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "x402-market-data-mcp==0.5.0"
      ],
      "env": {
        "X402_KEY_FILE": "<X402_KEY_FILE>",
        "X402_PRIVATE_KEY": "<X402_PRIVATE_KEY>",
        "MAX_USDC_PER_CALL": "<MAX_USDC_PER_CALL>",
        "MAX_USDC_PER_SESSION": "<MAX_USDC_PER_SESSION>"
      }
    }
  }
}

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_KEY_FILE
Optional		Path to a file with the private key of a small, dedicated payment wallet (plain text or JSON with private_key). Without it only free tools work.
X402_PRIVATE_KEY
Optional, secret		Alternative to X402_KEY_FILE: private key of a small, dedicated payment wallet.
MAX_USDC_PER_CALL
Optional		Highest price per call in USDC
MAX_USDC_PER_SESSION
Optional		Total budget per server start in USDC

Details

Package[email protected] (PYPI, stdio)
First published1 Nov 2026
Last updated1 Nov 2026
Registry nameio.github.r0dell/market-data-mcp

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