Fixter
officialMonitoring your coding agent sets up and runs: catches production errors and bugs, finds the root cause, and fixes them over MCP.
What can you do with Fixter MCP?
- Ask about production issues — Have your AI assistant check why the app is slow or broken, using Fixter's telemetry to get the root cause.
- Get AI-investigated incident summaries — Ask for a conclusion on a new issue, including affected users, timing, and likely cause, without wading through raw events.
- Set up monitoring from your agent — Instruct your assistant to configure Fixter via MCP, including alerts, queries, and OpenTelemetry setup, with no dashboard needed.
- Investigate non-error problems — Ask about slow endpoints or stalled jobs that never throw exceptions, since Fixter tracks logs, traces, and metrics.
- Receive proactive alerts — Have your assistant surface detected error bursts or anomalies before you notice them, via Slack or email.
Hosted MCP Server
npx add-mcp 'https://mcp.fixter.dev/mcp'Installs into Claude Code, Codex, Cursor and more
Documentation
Know when shit hits the fan.
Fixter is APM and error tracking for teams that build with coding agents. It finds what breaks, works out why, and hands it to your agent over MCP.
paste into a coding agent
A customer says the app is slow. Your agent already knows why.
claude code · fixter mcp01
claude code · fixter over mcp
We already know something's wrong. Before you do.
how issues are found and investigated →
slack · or email02
FixterApp9:12 AM
New issue. Customers are paying and not getting access. 23 users since Monday.
AI investigation: the Stripe webhook fails on subscription events, so the account never unlocks.
Fix with your agent
Need something custom? No worries.
claude code · fixter mcp03
fixter · over mcp · in claude code
Start free. No card.
Free plan. Paid from €20 a month.
What is Fixter?
An AI native monitoring platform for small engineering teams: application performance monitoring, error tracking, and uptime monitoring in one place. It stores your logs, traces, and metrics, alerts you when something matters, and an AI agent investigates the root cause. You run it from your coding agent over MCP.
Do I need Claude Code?
No. Any MCP client works, Cursor and Codex included, and the setup prompt above works in all of them. Claude Code has a plugin that does the whole setup in one command. No agent at all? Four environment variables, standard OpenTelemetry.
How is this different from Sentry with its MCP server?
Sentry MCP hands your agent the error list and the agent does the digging itself, from raw events, every time. Fixter does the digging before you ask: it stores logs, traces, and metrics over standard OpenTelemetry, so it also sees what never throws (slow endpoints, stalled jobs), detects error bursts and anomalies on its own, and when something breaks it runs the investigation: related logs and traces, root cause, who is affected and since when. Your agent gets the conclusion over MCP, not thousands of events to read through. And the agent is how you run the whole thing, setup, alerts, queries, so there is no dashboard to go back to.
Does Fixter access my code?
Monitoring and alerting never touch your code; they run on the telemetry you send. Investigations work on telemetry alone, and get sharper if you grant read access: the repository is cloned into a secure sandbox, used only for that problem, and deleted right after.
How does pricing work?
Free: 10 GB a month, forever, no card. Paid from €20 a month, pay-as-you-go or a bundle. The full breakdown, with what each plan includes, is on the pricing page.
I've never set up monitoring. Is this for me?
Yes, that is the point. If you can paste one prompt into your coding agent, it handles the rest. From then on, Fixter only speaks up when production needs you.