Platform
Docs/Watch Sai work
Coding agents

Watch Sai work

The live view the Sai MCP server shows for every task, inside your coding agent or in a browser.

View as Markdown

From @simular-ai/sai-mcp 0.2.0, every task started with sai_task_start comes with a live view:

  • the computer's screen, streamed while the task runs. It is view-only: nothing you do in the view reaches the computer.
  • Sai's steps as it works.
  • permission requests, which you can answer with Approve, Approve for this task or Deny.
  • the result, and the last frame of the screen once the task ends.

Where it shows

Your agentWhat you get
Claude desktop and claude.aiThe view appears in the conversation under the task, as an MCP App. Open in a window pops it out so it stays visible while you chat.
Codex appThe view appears in the conversation, but Codex keeps it offline, so the screen can't stream there. Open the watch_url link the agent posts; Codex opens it in its built-in browser.
Claude Code, Codex CLINo inline view. Open the watch_url link in your browser.
ChatGPT, Cursor, VS CodeThese render MCP Apps, so the view should appear inline. Not yet tested.

You can also follow any task in the Playground.

The watch_url link

sai_task_start returns a watch_url, and the agent is told to give it to you as a link. It opens the same view as a page served by the MCP server on your own computer, at http://127.0.0.1:<port>.

  • Your API key stays in the MCP server; the page never sees it, and you don't sign in.
  • The link carries a random token for this server process. Treat it like a temporary password: anyone on your computer with the link can follow the task and answer its approvals. It stops working when the MCP server exits.
  • Set SAI_LOCAL_VIEW=0 to turn the page off. watch_url is then left out.

One viewer at a time

A computer's screen streams to one viewer at a time. If you open the task somewhere else (another app, the Playground), the first view stops and shows Watch here to take the screen back.

On a free account, the screen can drop for a moment between Sai's steps while the computer is handed back and forth. The view reconnects on its own.

For API users

The view uses POST /v1/agents/machines/:machineId/live, which you can call directly to build your own viewer.