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Oracle3 prediction-market arbitrage checks MCP Server

by yichengyang-ethan Your server? Claim it
local only

Oracle3 prediction-market arbitrage checks runs on your own machine — the client starts it, so there is no endpoint to ping. 167 installs a week from pypi. Last commit 12 Oct 2026.

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

Installs per day peak 428 · avg 55 · -7% w/w
a month agotoday
167
Installs / week
pypi · oracle3
516
Stars
9 open issues
12 Oct 2026
Last commit
from GitHub
Apache-2.0
License
Python

What the code does

We read the source, 4 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add oracle3 -- uvx oracle3
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "oracle3": {
      "command": "uvx",
      "args": [
        "oracle3"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.oracle3]
command = "uvx"
args = ["oracle3"]
.cursor/mcp.json
{
  "mcpServers": {
    "oracle3": {
      "command": "uvx",
      "args": [
        "oracle3"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "oracle3": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "oracle3"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: ORACLE3_MCP_LEDGER (Path of the local paper-trading ledger (default ~/.oracle3/mcp_paper_ledger.json)).

Alternatives to Oracle3 prediction-market arbitrage checks

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Oracle3 prediction-market arbitrage checks — questions

Answers built from our own checks of this server.

Why is there no uptime for Oracle3 prediction-market arbitrage checks?
Oracle3 prediction-market arbitrage checks runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package oracle3 was installed 167 times last week.
How do I connect Oracle3 prediction-market arbitrage checks?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls oracle3 straight from pypi; nothing to host, nothing to sign up for.
How many people use Oracle3 prediction-market arbitrage checks?
The pypi package oracle3 was installed 167 times in the last week. Week over week that is -7%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Oracle3 prediction-market arbitrage checks open source?
Yes — it is published under the Apache-2.0 licence, written in Python, 516 stars on GitHub and 9 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.