crux-mcp
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| CRUX_API_KEY | Yes | Your Google Chrome UX Report API key. |
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 |
|---|---|
| crux_recordA | Current p75 Core Web Vitals for an origin or a single URL. Pass EITHER origin (e.g. https://www.betterpic.io — covers the whole site) OR url (one page). form_factor is PHONE, DESKTOP, TABLET or ALL. Returns each metric's p75 with a good / needs-improvement / poor assessment, plus an overall core_web_vitals_pass. Set raw=true for the untouched API response. |
| crux_historyA | Weekly Core Web Vitals trend, up to 25 points, for charting or regression checks. Same origin / url / form_factor rules as crux_record. Pass metric to return just one series, e.g. largest_contentful_paint, interaction_to_next_paint, cumulative_layout_shift, first_contentful_paint, experimental_time_to_first_byte. |
| crux_compareA | Compare Core Web Vitals across several origins — yours against competitors. origins is a comma-separated list, e.g. "https://www.betterpic.io,https://www.aragon.ai,https://www.headshotpro.com". Returns one row per origin with the three Core Web Vitals and whether it passes. Origins with no CrUX record are reported rather than dropped silently. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
Latest Blog Posts
- Who's Calling? MCP Hosts Are an Identity Blind Spot (And the Spec Knows It)By Om-Shree-0709 on .mcpAgent IdentityOAuth 2.1
- Your AI Chatbot Just Exposed Your CEO's Salary to an InternBy Om-Shree-0709 on .Agent IdentityMCP SecurityOAuth Delegation
- Why MCP Servers Need Execution Sandboxing (And Why Your Current Stack Isn't Enough)By Om-Shree-0709 on .Agentic AiPrompt InjectionWebAssembly
MCP directory API
We provide all the information about MCP servers via our MCP API.
curl -X GET 'https://glama.ai/api/mcp/v1/servers/miguelrisero/crux-mcp'
If you have feedback or need assistance with the MCP directory API, please join our Discord server