get_histogram — State of Web Vitals MCP Tool Read-only
get_histogram
(get histogram) is one of 3 tools on the
State of Web Vitals
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call get_histogram from your client
- Claude Code State of Web Vitals get_histogram run in your project directory
- Claude Desktop State of Web Vitals get_histogram ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor State of Web Vitals get_histogram ~/.cursor/mcp.json
- VS Code State of Web Vitals get_histogram .vscode/mcp.json
- Zed State of Web Vitals get_histogram ~/.config/zed/settings.json
- Windsurf State of Web Vitals get_histogram ~/.codeium/windsurf/mcp_config.json
- Cline State of Web Vitals get_histogram ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI State of Web Vitals get_histogram ~/.gemini/settings.json
- Grok State of Web Vitals get_histogram .mcp.json (in your project root)
- ChatGPT State of Web Vitals get_histogram Settings → Connectors → Advanced → Developer mode
- Claude.ai State of Web Vitals get_histogram Settings → Connectors → Add custom connector
- LangChain State of Web Vitals get_histogram pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http state-of-cwv https://www.corewebvitals.io/api/state-of-cwv/mcpOther tools on this server
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.