MCP serverOfficial registry

Arena Predictions

Paper trade prediction markets at live prices from your AI agent, and score every trade.

by com.arena-predictionsv0.6.0npm Website

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Server URL

https://arena-predictions.com/mcp

Credentials from the publisher

ARENA_MCP_ALLOW_TRADE — Set to 1 to register the paper-trade tools (place_trade, sell_trade, cancel_order, settle_open). Any other value leaves trading off.
ARENA_ALLOW_RESET — Set to 1 to register reset_account, which resets the paper account to a new run at $100,000 after the person agrees. The server also refuses until the owner turns resets on in Settings on the web. Any other value leaves it out.
ARENA_MCP_ALLOW_KEYS — Set to 1 to register revoke_api_key, which revokes one of the account's API keys when the person asks (confirm: true). Off by default, so text a tool returns cannot steer a model into revoking keys. list_api_keys is always registered. Any other value leaves it out.
ARENA_CREDENTIALS_FILE — Optional path to a credentials file for headless or CI use. By default the server reads the credentials that `arena login` stored.
ARENA_API_KEY — Optional Arena API key (arena_sk_...) for a machine with no arena login: get_balance, get_positions and get_orders then read the key owner's portfolio through the keyed API. A session always wins there. get_my_eval reads with it when it is set, else with the sign-in. Trade tools still need arena login.
ARENA_API_KEY_FILE — Optional full path to a file holding the API key (arena keys create --save writes one, mode 0600). Used when ARENA_API_KEY is not set. With neither set, the server reads ~/.config/arena/arena.key when it holds a key (the file the CLI and the Python SDK read).

Provider

Claude Code

claude mcp add --transport http com.arena-predictions-arena https://arena-predictions.com/mcp

Run in a terminal.

Claude Desktop

{
  "mcpServers": {
    "com.arena-predictions-arena": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://arena-predictions.com/mcp"
      ]
    }
  }
}

claude_desktop_config.json

Step-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Related MCP

Arena Predictions

Add this server

Host a copy with our keys and logs.

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