Hesperan MCP Server: Install & Setup

Install Hesperan in Claude Code

Remote URL

Claude Code

claude mcp add --transport http hesperan https://api.hesperan.com/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "hesperan": {
      "url": "https://api.hesperan.com/mcp"
    }
  }
}

npm

Claude Code

claude mcp add hesperan -e HESPERAN_API_KEY=... -- npx -y hesperan-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "hesperan": {
      "command": "npx",
      "args": [
        "-y",
        "hesperan-mcp"
      ],
      "env": {
        "HESPERAN_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Hesperan MCP server do?

Calibrated decisions for agents: choice, yes/no and score questions answered with probabilities.

Is the Hesperan MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Hesperan run locally or remotely?

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

How do I add Hesperan to Claude Code?

Run: claude mcp add --transport http hesperan https://api.hesperan.com/mcp

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