Hexum MCP Server: Install & Setup

Install Hexum in Claude Code

Claude Code

claude mcp add --transport http hexum https://hexum.dev/mcp

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

{
  "mcpServers": {
    "hexum": {
      "url": "https://hexum.dev/mcp"
    }
  }
}

Pass your API key, usually as an "Authorization: Bearer <token>" header (--header in Claude Code).

Frequently asked questions

What does the Hexum MCP server do?

Shrink agent prompts, block forbidden imports without calling a model, and review PRs; zero data retention.

Is the Hexum 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 Hexum run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add Hexum to Claude Code?

Run: claude mcp add --transport http hexum https://hexum.dev/mcp

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