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Hesperan

Official registry AI and agents

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

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http hesperan 'https://api.hesperan.com/mcp' --header 'Authorization: <Hesperan API key from https://hesperan.com/console/keys>'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "hesperan": {
            "type": "http",
            "url": "https://api.hesperan.com/mcp",
            "headers": {
                "Authorization": "<Hesperan API key from https://hesperan.com/console/keys>"
            }
        }
    }
}
NPM package hesperan-mcp
Claude Code 
claude mcp add hesperan -e 'HESPERAN_API_KEY=<your hesperan_api_key>' -e 'HESPERAN_BASE_URL=https://api.hesperan.com' -- npx -y hesperan-mcp@0.1.0
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "hesperan": {
            "command": "npx",
            "args": [
                "-y",
                "hesperan-mcp@0.1.0"
            ],
            "env": {
                "HESPERAN_API_KEY": "<your hesperan_api_key>",
                "HESPERAN_BASE_URL": "https://api.hesperan.com"
            }
        }
    }
}

Environment variables

  • HESPERAN_API_KEY required secret Hesperan API key (hsp_...) from https://hesperan.com/console/keys
  • HESPERAN_BASE_URL API base URL

Frequently asked questions

What is Hesperan?

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

How do I install Hesperan?

It runs as a remote server. In Claude Code: claude mcp add --transport http hesperan 'https://api.hesperan.com/mcp' --header 'Authorization: <Hesperan API key from https://hesperan.com/console/keys>'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Hesperan need an API key?

Yes. It expects HESPERAN_API_KEY, Authorization, which you set in its configuration.

Who maintains Hesperan?

It is published by com.hesperan. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.