Faultline — Claude Code MCP server: what it does, how to install
Connects AI assistants to Faultline infrastructure monitoring to inspect incidents, check service health, and run runbooks.
claude mcp add --transport http faultline https://mcp.fltln.io/mcpWhat Faultline does
Faultline runs this remote MCP server at https://mcp.fltln.io/mcp using Streamable HTTP. You do not run any local binaries. Access requires an API key starting with flt_... generated inside your Faultline settings.
The toolset lets your agent pull service inventories, read the 10 most recent health checks, track latency baseline anomalies, and look up on-call shifts. To investigate outages, diagnose_incident provides next-step suggestions without modifying resources.
The only tool that touches your infrastructure is run_runbook. It can scale or reboot services, meaning agents should trigger it only after explicit confirmation. Every API call remains strictly isolated within your organization account.
What it helps with
- inspect service health along with its 10 latest checks
- retrieve on-call engineer schedules and shift handoff times
- review latency anomalies against calculated baseline values
- execute verified runbooks to restart or scale struggling services
Example prompts for the agent
- Who is currently on call and when does their shift end?
- Check the last 10 health checks for the auth-service.
- Run diagnose_incident on the active incident and suggest runbooks.
How to install Faultline
Platform CLI: remote server
claude mcp add --transport http faultline https://mcp.fltln.io/mcpPlatform CLI: remote server
codex mcp add faultline --url https://mcp.fltln.io/mcpConfig file
{
"mcpServers": {
"faultline": {
"url": "https://mcp.fltln.io/mcp"
}
}
}Config file
{
"servers": {
"faultline": {
"type": "http",
"url": "https://mcp.fltln.io/mcp"
}
}
}Platform CLI: remote server
gemini mcp add -t http faultline https://mcp.fltln.io/mcpStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about Faultline
How to install Faultline in Claude Code?
Run this command in your terminal: claude mcp add --transport http faultline https://mcp.fltln.io/mcp. You will also need to supply your Faultline API key to authorize requests.
What does the Faultline MCP server do?
It lets your AI agent inspect infrastructure health, review active incidents, investigate anomalies, and execute remediation runbooks.
Can Faultline MCP modify live infrastructure?
Only the run_runbook tool performs mutations like restarts or scaling. It requires explicit confirmation before execution.
