Orcalayer

PyPI MIT License MCP MCP Badge Glama MCP orcalayer-mcp MCP server

Model Context Protocol (MCP) server for the OrcaLayer API — Polymarket whale and market analytics inside Claude Desktop and other MCP clients.

It is a thin stdio wrapper over the orcalayer Python SDK and exposes five tools:

Tool	What it does	Key
leaderboard	Rank smart-money whales by P&L, win rate or volume	No
wallet_overview	A wallet's profile and performance summary	No
wallet_positions	A wallet's largest open positions	No
markets	Search markets where smart whales are clustering	No
whale_alerts	Live feed of recent smart-whale trades	Premium

Public tools work anonymously. whale_alerts needs a Premium API key (get one) supplied via the ORCALAYER_API_KEY environment variable.

Prompts

Ready-to-use prompts for common analytics scenarios:

Prompt	What it does
analyze_wallet	Full wallet analysis — smart money or farmer?
find_divergence	Markets where smart money disagrees with the current price
hedge_check	Whether a wallet's profit was real alpha or a hedge structure
territorial_markets_review	Ukraine territorial markets with ISW frontline overlay

In Claude Desktop, pick a prompt from the prompt menu (the + / slash-command picker) — each one orchestrates the tools above for you.

Resources

Read-only context the model can pull directly — no tool call needed:

Resource URI	Content
orcalayer://methodology	How smart money is filtered from farmers, hedgers and market-makers
orcalayer://glossary	Prediction-markets glossary
orcalayer://api-reference	OrcaLayer REST API reference (endpoints, auth, rate limits)

Use with Claude Desktop

Add this to your claude_desktop_config.json (%APPDATA%\Claude\claude_desktop_config.json on Windows, ~/Library/Application Support/Claude/claude_desktop_config.json on macOS):

{
  "mcpServers": {
    "orcalayer": {
      "command": "uvx",
      "args": ["orcalayer-mcp"]
    }
  }
}

The public tools work as-is. For the Premium whale_alerts tool, add your API key (get one):

{
  "mcpServers": {
    "orcalayer": {
      "command": "uvx",
      "args": ["orcalayer-mcp"],
      "env": { "ORCALAYER_API_KEY": "ol_your_key" }
    }
  }
}

Restart Claude Desktop after editing the config.

License

MIT. See LICENSE.

Data is provided for informational purposes only and is not financial advice.