signl4_list_categories — SIGNL4 MCP by usefulapi MCP Tool
signl4_list_categories
(signl4 list categories) is one of 18 tools on the
SIGNL4 MCP by usefulapi
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call signl4_list_categories from your client
- Claude Code SIGNL4 MCP by usefulapi signl4_list_categories run in your project directory
- Claude Desktop SIGNL4 MCP by usefulapi signl4_list_categories ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor SIGNL4 MCP by usefulapi signl4_list_categories ~/.cursor/mcp.json
- VS Code SIGNL4 MCP by usefulapi signl4_list_categories .vscode/mcp.json
- Zed SIGNL4 MCP by usefulapi signl4_list_categories ~/.config/zed/settings.json
- Windsurf SIGNL4 MCP by usefulapi signl4_list_categories ~/.codeium/windsurf/mcp_config.json
- Cline SIGNL4 MCP by usefulapi signl4_list_categories ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI SIGNL4 MCP by usefulapi signl4_list_categories ~/.gemini/settings.json
- Grok SIGNL4 MCP by usefulapi signl4_list_categories .mcp.json (in your project root)
- ChatGPT SIGNL4 MCP by usefulapi signl4_list_categories Settings → Connectors → Advanced → Developer mode
- Claude.ai SIGNL4 MCP by usefulapi signl4_list_categories Settings → Connectors → Add custom connector
- LangChain SIGNL4 MCP by usefulapi signl4_list_categories pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http signl4 https://signl4.usefulapi.io/mcpOther tools on this server
- signl4_list_teams
- signl4_get_team
- signl4_list_users
- signl4_get_user
- signl4_list_team_users
- signl4_list_alerts
- signl4_get_alert
- signl4_get_alert_timeline
- signl4_get_alert_report
- signl4_raise_alert
- signl4_acknowledge_alert
- signl4_close_alert
- signl4_annotate_alert
- signl4_list_duty_schedules
- signl4_get_duty_status
- signl4_get_duty_summary
- signl4_list_audit_logs
This list was read from the server itself, by connecting to it and calling tools/list on 11 October 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.