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ZeroWidth

Official registry Search and web

Search, write and run work across Compass, Workbench, Caliper, Ledger, Prism and Napkin.

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 zerowidth 'https://api.zerowidth.ai/mcp' --header 'Authorization: <Bearer token: a workspace API key or personal access token from accounts.zerowidth.ai>'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "zerowidth": {
            "type": "http",
            "url": "https://api.zerowidth.ai/mcp",
            "headers": {
                "Authorization": "<Bearer token: a workspace API key or personal access token from accounts.zerowidth.ai>"
            }
        }
    }
}

Frequently asked questions

What is ZeroWidth?

Search, write and run work across Compass, Workbench, Caliper, Ledger, Prism and Napkin.

How do I install ZeroWidth?

It runs as a remote server. In Claude Code: claude mcp add --transport http zerowidth 'https://api.zerowidth.ai/mcp' --header 'Authorization: <Bearer token: a workspace API key or personal access token from accounts.zerowidth.ai>'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does ZeroWidth need an API key?

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

Who maintains ZeroWidth?

It is published by ai.zerowidth. 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.