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Fato07
by Fato07

Log Analyzer MCP

MCP Registry PyPI version PyPI Downloads License: MIT Python 3.10+ GitHub stars

πŸ” Stop copy-pasting logs into AI. Let Claude read them directly.

An MCP server for AI-powered log analysis. Parse, search, and debug log files across 9+ formats β€” right from Claude Code.

πŸ“Š At a Glance

14 MCP tools

9+ log formats

280 tests

81%+ coverage

🎬 Demo

Log Analyzer MCP Demo

Analyzing logs with 14 specialized tools

πŸ€” Why?

Without log-analyzer-mcp

With log-analyzer-mcp

Copy-paste chunks of logs

Point Claude at the file

Lose context between pastes

Full file access

Manual format parsing

Auto-detection

Miss related errors

Smart correlation

✨ Features

  • Auto-Detection β€” Identifies format from 9+ common log types

  • Smart Search β€” Pattern matching with context, regex, and time filtering

  • Error Extraction β€” Groups similar errors, captures stack traces

  • Natural Language β€” Ask questions like "what errors happened today?"

  • Sensitive Data Scan β€” Detect PII, credentials, and secrets

  • Multi-File Analysis β€” Correlate events across distributed systems

  • Streaming β€” Handles 1GB+ files without memory issues

πŸš€ Quick Start

# Install (adds to Claude Code automatically) uvx codesdevs-log-analyzer install

Then in Claude Code:

Analyze /var/log/app.log and tell me what's causing the errors

πŸ“¦ Installation

uvx codesdevs-log-analyzer install

Manual

# pip pip install codesdevs-log-analyzer # uv uv tool install codesdevs-log-analyzer

Add to ~/.claude/settings.json:

{ "mcpServers": { "log-analyzer": { "command": "uvx", "args": ["codesdevs-log-analyzer"] } } }

πŸ“‹ Supported Formats

Format

Example

Syslog

Jan 15 10:30:00 hostname process[pid]: message

Apache/Nginx

127.0.0.1 - - [15/Jan/2026:10:30:00] "GET /path" 200

JSON Lines

{"timestamp": "...", "level": "ERROR", "message": "..."}

Docker

2026-01-15T10:30:00.123Z stdout message

Python

2026-01-15 10:30:00,123 - module - ERROR - message

Java/Log4j

2026-01-15 10:30:00,123 ERROR [thread] class - message

Kubernetes

level=error msg="..." ts=2026-01-15T10:30:00Z

Generic

Any line with recognizable timestamp

⚑ Performance

Metric

Value

100MB log file

< 10 seconds

Memory footprint

Streaming (no full load)

Max tested size

1GB+

Format detection

< 100ms

πŸ› οΈ Available Tools

Tool

Description

log_analyzer_parse

Detect format and extract metadata

log_analyzer_search

Search with context lines

log_analyzer_extract_errors

Extract and group errors

log_analyzer_summarize

Generate debugging summary

log_analyzer_correlate

Find related events

log_analyzer_watch

Monitor for new entries

log_analyzer_ask

Natural language queries

log_analyzer_scan_sensitive

Detect PII/credentials

+ 6 more

Full reference β†’

πŸ’‘ Examples

Find errors:

Extract all errors from /var/log/app.log, group similar ones

Search with context:

Search for "timeout" in app.log with 5 lines of context

Correlate events:

What happened 60 seconds before each OutOfMemoryError?

Scan for secrets:

Check /var/log/app.log for accidentally logged credentials

πŸ”§ Development

git clone https://github.com/Fato07/log-analyzer-mcp cd log-analyzer-mcp uv sync uv run pytest -v --cov

πŸ“ˆ Star History

Star History Chart

πŸ“„ License

MIT License - see LICENSE for details.


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