Schema | chrome-remote-debugging-mcp

chrome-remote-debugging-mcp

Describes the environment variables required to run the server.

Name	Required	Description	Default
`CDP_URL`	No	Chrome remote-debugging origin	http://localhost:9222
`SSH_PROXY_TO`	No	SSH target, e.g. user@remote. Presence enables the tunnel.
`SSH_PROXY_PORT`	No	Fixed local port for tunnel. Auto-assigned when unset.

Features and capabilities supported by this server

Capability	Details
`tools`	{ "listChanged": false }
`prompts`	{ "listChanged": false }
`resources`	{ "subscribe": false, "listChanged": false }
`experimental`	{}

Functions exposed to the LLM to take actions

Name	Description
pingA	Check connectivity to Chrome's DevTools endpoint (`CDP_URL`). Returns `{"connected": True, "cdp_url", "browser", "protocol"}` when Chrome answers, or `{"connected": False, "cdp_url", "error": ...}` when it is unreachable.
list_tabsA	List open Chrome page tabs. Returns `{"tabs": [{id, title, url, type}, ...]}` or `{"error": ...}` if Chrome is unreachable.
navigateA	Navigate a Chrome tab to `url`. Uses the first page tab when `tab_id` is omitted. Returns `{"tab_id", "url", "frameId"}` on success, `{"error": ...}` otherwise.
evaluateA	Evaluate a JavaScript `expression` in a Chrome tab. Uses the first page tab when `tab_id` is omitted. Awaits promises and returns the value by value. Returns `{"tab_id", "value", "type"}` on success, or `{"error": ...}` on failure or an uncaught JS exception.
cdp_commandA	Send a raw CDP command and return its raw result — escape hatch. Use when the higher-level tools don't cover what you need. `method` is any CDP method (e.g. `"Page.captureScreenshot"`, `"DOM.getDocument"`, `"Network.enable"`); `params` are its parameters. Runs against the given tab (or the first page tab). Note: this targets a page websocket, so page-domain methods work; browser-level domains (`Browser.`, `Target.`) do not. Returns `{"tab_id", "method", "result"}` or `{"error": ...}`.

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

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