interact

interact

Perform a mouse action on an element.

MCP tool	interact
HTTP	POST /browser/interact

action is one of: click, double_click, right_click, hover, scroll_to.

click is the common case. hover opens menus that only appear on mouse-over. right_click opens context menus. scroll_to brings an off-screen element into view, which is often what a click on a long page needs first.

Returns the URL and title after the action, so any navigation it caused is visible in the result.

Address the element with EITHER xpath OR css, never both and never neither - e.g. xpath="//button[@type='submit']" or css="button[type=submit]".

Parameters

Name	Type	Required	Default	Notes
action	string	yes	—
xpath	string	no	—
css	string	no	—
session_id	string	yes over HTTP	—	The session_id returned by /browser/open. Required here.
url	string	no	—
wait_timeout	integer	no	30

Returns

Field	Type	Notes
action	string	The gesture that was performed.
url	string	Current URL after the action.
title	string	Page title after the action.

Errors

Status	Means
400	The request cannot succeed as sent — a missing field, a value that was rejected, or a locator that matched nothing before the wait ran out. Do not retry it unchanged.
401	Missing or wrong bearer token.
404	No such browser session. It ended, the Grid reaped it, or the id was never real. Open a new one and retry.
500	Something failed that this server did not expect.
503	The Grid could not serve this — unreachable, or no free slot for a new browser. Worth retrying after a wait.

Over MCP the same failures arrive as a tool error.

Example

MCP

interact(action="…")

HTTP

curl -X POST $SELENIUM_FLOW/browser/interact \
  -H "Authorization: Bearer $TOKEN" \
  -H 'Content-Type: application/json' \
  -d '{
    "session_id": "…",
    "action": "…"
  }'

---

← All actions · Installing · Deployment