NestDaddy

Oracle3 prediction-market arbitrage checks

io.github.YichengYang-Ethan/oracle3 ยท v1.2.2

Kalshi and Polymarket data, venue fees, no-arbitrage checks and paper execution for AI agents.

Connect Runs on your machine

Terminal
claude mcp add oracle3 -e ORACLE3_MCP_LEDGER=<ORACLE3_MCP_LEDGER> -- uvx oracle3==1.2.2
claude_desktop_config.json
{
  "mcpServers": {
    "oracle3": {
      "command": "uvx",
      "args": [
        "oracle3==1.2.2"
      ],
      "env": {
        "ORACLE3_MCP_LEDGER": "<ORACLE3_MCP_LEDGER>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "oracle3": {
      "command": "uvx",
      "args": [
        "oracle3==1.2.2"
      ],
      "env": {
        "ORACLE3_MCP_LEDGER": "<ORACLE3_MCP_LEDGER>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "oracle3": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "oracle3==1.2.2"
      ],
      "env": {
        "ORACLE3_MCP_LEDGER": "<ORACLE3_MCP_LEDGER>"
      }
    }
  }
}

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
ORACLE3_MCP_LEDGER
Optional
Path of the local paper-trading ledger (default ~/.oracle3/mcp_paper_ledger.json)

Details

Package[email protected] (PYPI, stdio)
First published30 Sep 2026
Last updated30 Sep 2026
Registry nameio.github.YichengYang-Ethan/oracle3

More ai and media servers See all

Listing data from the official MCP registry. Status and tools from NestDaddy's daily check. Browse all MCP servers.