Local + RemoteFree

Simplefunctions CLI MCP server

spfunctions/simplefunctions-cli

Calibrated world model for AI agents. 40 tools: world state, markets, trading. Kalshi + Polymarket.

Install Simplefunctions CLI in Claude Code

Remote URL

Claude Code
claude mcp add --transport http simplefunctions-cli https://simplefunctions.dev/api/mcp/mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "simplefunctions-cli": {
      "url": "https://simplefunctions.dev/api/mcp/mcp"
    }
  }
}

npm

Claude Code
claude mcp add simplefunctions-cli -- npx -y @spfunctions/cli
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "simplefunctions-cli": {
      "command": "npx",
      "args": [
        "-y",
        "@spfunctions/cli"
      ]
    }
  }
}

Frequently asked questions

What does the Simplefunctions CLI MCP server do?

Calibrated world model for AI agents. 40 tools: world state, markets, trading. Kalshi + Polymarket.

Is the Simplefunctions CLI MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Simplefunctions CLI run locally or remotely?

Local + Remote. Can run locally or be used as a hosted remote server.

How do I add Simplefunctions CLI to Claude Code?

Run: claude mcp add --transport http simplefunctions-cli https://simplefunctions.dev/api/mcp/mcp

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