Hetzner Cloud MCP Server

Instructions

List all SSH keys in your Hetzner Cloud account.

Returns a list of all SSH key instances with their details.

Example:
- Basic list: list_ssh_keys()

Implementation Reference

• mcp_hetzner/server.py:1203-1219 (handler)

  The handler function decorated with @mcp.tool() that implements the list_ssh_keys tool. It fetches all SSH keys from the Hetzner client and formats them using the ssh_key_to_dict helper.

  def list_ssh_keys() -> Dict[str, Any]:
      """
      List all SSH keys in your Hetzner Cloud account.
      
      Returns a list of all SSH key instances with their details.
      
      Example:
      - Basic list: list_ssh_keys()
      """
      try:
          ssh_keys = client.ssh_keys.get_all()
          return {
              "ssh_keys": [ssh_key_to_dict(ssh_key) for ssh_key in ssh_keys]
          }
      except Exception as e:
          return {"error": f"Failed to list SSH keys: {str(e)}"}

• mcp_hetzner/server.py:100-110 (helper)

  Helper function used by list_ssh_keys to convert Hetzner SSHKey objects into serializable dictionaries for the tool response.

  # Helper function to convert SSHKey object to dict
  def ssh_key_to_dict(ssh_key: SSHKey) -> Dict[str, Any]:
      """Convert an SSHKey object to a dictionary with relevant information."""
      return {
          "id": ssh_key.id,
          "name": ssh_key.name,
          "fingerprint": ssh_key.fingerprint,
          "public_key": ssh_key.public_key,
          "labels": ssh_key.labels,
          "created": ssh_key.created.isoformat() if ssh_key.created else None,
      }

• mcp_hetzner/server.py:1203-1203 (registration)

  The @mcp.tool() decorator registers the list_ssh_keys function as an MCP tool.

  def list_ssh_keys() -> Dict[str, Any]: