Comet MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| COMET_PATH | No | Path to Comet browser executable for non-standard installs |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| comet_connectA | Connect to the Comet browser via CDP. Auto-launches Comet if needed. Call this before using any other comet tool. |
| comet_searchA | Search the web using Perplexity via Comet. Navigates to perplexity.ai/search?q=QUERY and extracts the AI-generated results. No CSS selectors needed -- uses URL-based navigation. Args: query: The search query. wait_seconds: Seconds to wait for AI response generation. mode: Search mode -- 'search' or 'research'. |
| comet_navigateB | Navigate Comet to a specific URL. Args: url: The URL to navigate to. wait_for: Wait condition -- 'load', 'domcontentloaded', or 'networkidle'. |
| comet_read_pageA | Read the text content of the current page in Comet. Args: selector: Optional CSS selector to read specific content. include_links: Whether to include href URLs from links. max_length: Maximum characters to return. |
| comet_screenshotA | Take a screenshot of the current Comet page. Returns base64 PNG. Args: full_page: Whether to capture the full scrollable page. |
| comet_clickA | Click an element on the current Comet page. Args: selector: CSS selector or 'text=Something' for text matching. wait_after: Seconds to wait after clicking. |
| comet_typeA | Type text into an input field in the current Comet page. Args: selector: CSS selector of the input field. text: Text to type into the field. press_enter: Whether to press Enter after typing. clear_first: Whether to clear the field before typing. |
| comet_tabsA | Manage tabs in the Comet browser. Args: action: Tab action -- 'list', 'new', 'switch', 'close'. tab_index: Tab index for 'switch' or 'close' (0-based). url: URL for 'new' tab action. |
| comet_evaluateC | Evaluate a JavaScript expression in the current Comet page. Args: expression: JavaScript expression to evaluate in the page context. |
| comet_waitB | Wait for a specific element or a fixed duration. Args: selector: CSS selector to wait for. seconds: Fixed seconds to wait. |
| comet_security_scanA | Deep security scan of current page. Detects hidden text, CSS-invisible elements, injection attempts, suspicious content. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 11 tools
Each tool targets a distinct action: connect, navigate, read, click, type, tabs, evaluate, wait, screenshot, search, and security scan. There is no overlap in their purposes, and the descriptions make the differences immediately clear.
All tools share the 'comet_' prefix and mostly follow a verb pattern (navigate, read, click, type, evaluate, wait). The main deviation is comet_tabs, which uses a noun instead of a verb_action form, but the overall pattern remains predictable and readable.
11 tools is a well-scoped set for a browser automation server. Each tool covers a core browser interaction or capability, and none feel redundant or superfluous.
The toolset covers the essential browser automation lifecycle: connect, navigate, interact, extract, screenshot, and manage tabs. Minor gaps exist such as no explicit back/forward, refresh, or cookie handling, but these can be worked around with comet_evaluate.