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Heystack

Official registry Productivity

Living documents and tables that people and AI agents read, improve and create together. No sign-up.

Source code 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 heystack 'https://heystacks.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "heystack": {
            "type": "http",
            "url": "https://heystacks.com/mcp"
        }
    }
}

Frequently asked questions

What is Heystack?

Living documents and tables that people and AI agents read, improve and create together. No sign-up.

How do I install Heystack?

It runs as a remote server. In Claude Code: claude mcp add --transport http heystack 'https://heystacks.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Heystack need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Heystack open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Heystack?

It is published by Matthews3301. 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.