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Claude Code Cronus UI Resource/registry-index

How to: Claude Code Cronus UI registry-index

client:Claude Code transport:streamable-http resource:registry-index

Add Cronus UI to Claude Code

  1. 01

    Run this in your project directory.

claude mcp add --transport http cronus-ui https://aicronus.com/mcp
  1. 02

    Restart your session so the server is picked up.

  2. 03

    registry-index is surfaced wherever your client lets you attach context. It is context to attach, not an action to run.

  3. 04

    If it does not appear, check that Cronus UI is connected and that you are looking at its resources rather than its tools.

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

Set these first

Cronus UI will not start until these are set, so it never reaches Claude Code.

  • CRONUS_UI_REGISTRY
  • CRONUS_MCP_CLI_CMD
  • CRONUS_MCP_CLI_TIMEOUT_MS

Same resource, other clients

Read from the server itself, by connecting to it and calling resources/list on 24 September 2026. A listing does not declare its resources, so asking is the only way to know them, and this is what the server actually offers rather than what its listing claims. Names only are stored; connect the server for each resource's type and contents.