Loki MCP server

This is a small helper that connects your AI assistant to Grafana Loki, the place where many teams keep their application logs. Once it is set up, you can ask your AI things like which errors happened last night, and it will go and look in Loki for you. It is handy for anyone who deals with logs but does not want to learn a query language first.

What this MCP server does

You ask your AI a question about your logs, like what errors happened in the last hour. The AI uses this helper to first check which labels and values exist in your Loki, so it knows what it can search for. Then it builds a proper log query and sends it to Loki. Loki sends back the matching log lines, and the AI shows them to you as a readable answer in the chat. You never have to write the query yourself.

Click to zoom

What you can do with it

• List all the label names available in your Loki
• Find the values of a specific label, like all app names
• Find which log streams are active right now
• Fetch log lines over a time window you choose
• Look up logs at one exact moment in time
• Filter logs by app, level or message text
• Get a short summary of recent errors instead of reading raw logs

Try asking your AI

• “What errors happened in the payments app in the last hour?”
• “List all the label names available in Loki right now.”
• “Show me the last 50 log lines from the nginx app.”
• “Which apps are sending logs at the moment?”

What it gives back to you

You get back log lines, lists of label names or values, and lists of active streams, shown as text in the chat. The AI can also summarise what it found, like counting errors or pointing out a pattern. Nothing in your Loki is changed; it only reads.

Before you start

Who it's for

Developers, support engineers and anyone on call who needs to look through application logs without learning a query language.