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.
We read the source, 4 d ago · rules 995398eba69f
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.
feed.innerHTML = reversed.map((t, i) => {
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
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.
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.
claude mcp add oracle3 -- uvx oracle3
{
"mcpServers": {
"oracle3": {
"command": "uvx",
"args": [
"oracle3"
]
}
}
}
[mcp_servers.oracle3]
command = "uvx"
args = ["oracle3"]
{
"mcpServers": {
"oracle3": {
"command": "uvx",
"args": [
"oracle3"
]
}
}
}
{
"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)).
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Answers built from our own checks of this server.