langfuse-mcp and mcp-nixos
About langfuse-mcp
avivsinai/langfuse-mcp
A Model Context Protocol (MCP) server for Langfuse, enabling AI agents to query Langfuse trace data for enhanced debugging and observability
Exposes 25 tools across traces, observations, sessions, exceptions, datasets, and prompt management—significantly broader than prompt-only alternatives. Implements selective tool loading to minimize token overhead and read-only mode for safer access, with stdio transport integration for Claude Code, Codex CLI, and Cursor. Includes bundled debugging playbooks via a skill system and supports both cloud and self-hosted Langfuse instances.
About mcp-nixos
utensils/mcp-nixos
MCP-NixOS - Model Context Protocol Server for NixOS resources
Provides real-time access to 130K+ NixOS packages, 23K+ system options, and community resources (FlakeHub, Noogle, Wiki) through two consolidated tools that use external APIs—no local Nix installation required. Implements both stdio and HTTP transports with configurable session state, enabling integration with Claude, Cursor, and other MCP clients across any OS. Consolidates 17 data sources into ~1,030 tokens of context, minimizing overhead while offering package version history, binary cache status checks, and local flake input exploration for reproducible builds.
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