How to install Oracle3 prediction-market arbitrage checks in OpenAI Agents SDK

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

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Steps

1Install uv (for uvx): https://docs.astral.sh/uv/
2pip install openai-agents
3Use the snippet below inside an async function

Python snippet

Python

from agents import Agent
from agents.mcp import MCPServerStdio

async with MCPServerStdio(
    params={
        "command": "uvx",
        "args": [
            "oracle3"
        ]
    },
) as server:
    agent = Agent(name="Assistant", mcp_servers=[server])

Environment variable	Required	What it is
ORACLE3_MCP_LEDGER	No	Path of the local paper-trading ledger (default ~/.oracle3/mcp_paper_ledger.json)

Install in other clients

Claude Code Cursor Claude Desktop Windsurf Gemini CLI

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