Create a browser session and set it as active. Uses local Playwright by default; set cloud=true for Browserbase cloud.

Close the current browser session and reset the active context.

Navigate to a URL in the browser. Only use this tool with URLs you're confident will work and be up to date. Otherwise, use https://google.com as the starting point. Supports localhost URLs when using cloud browser - automatically tunnels via ngrok.

Perform a single action on the page (e.g., click, type).

Extract structured data or text from the current page using an instruction.

Find interactive elements on the page from an instruction; optionally return an action.

Capture a full-page screenshot and return it (and save as a resource).

Return the current page URL (full URL with query/fragment).

Execute a task autonomously using Stagehand agent in hybrid mode. The agent uses both DOM-based and coordinate-based actions for maximum reliability.

Execute a multi-step test scenario (arrange/act/assert) using the Stagehand agent. Returns structured pass/fail/blocked results per assert step.

Run a Stagehand script (default export from defineScript) against the current browser session. Accepts either a file path or inline source — exactly one. Returns {status: "passed"|"failed", durationMs}. On failure also returns error and stack. Use after authoring a script to validate it; the MCP's live session is reused, so no separate setup is required. Inline source mode resolves bare imports against the MCP's own node_modules (no install needed); path mode resolves from the script's project.

Record a narrated demo video of a known-good Stagehand script. Each action runs through stagehand.act with a CDP screencast attached; per-action narration is generated via OpenAI TTS; per-segment mp4s are concatenated into a single final.mp4. Uses the active Stagehand session — make sure the page is at the desired starting state before calling. Requires OPENAI_API_KEY.

Show help for agent-browser, a low-level browser automation CLI for precise, deterministic control. Call this to see available commands.

Run a low-level browser command. Use over Stagehand when you need precise, deterministic control — element-by-ref interactions, DOM inspection, network debugging, JS evaluation. Shares the same browser session as Stagehand.