Yavio: Open-Source Product Analytics SDK for MCP Apps

Yavio is an open-source product analytics SDK designed specifically for MCP and MCP Apps. The project was built using Claude Code as the primary development tool for the majority of the codebase, including the SDK, ingestion API, and dashboard.
What Yavio Does
Yavio wraps your MCP App with one function call and automatically captures every tool call, error, and resource read. This provides developers with visibility into how their tools are being used, where users drop off, and what drives revenue.
How It Works
Integration requires just one function call:
const server = withYavio(new McpServer({ name: "my-app", version: "1.0.0" }));
Features
- Automatic capture of tool calls, errors, and resource reads
- Dashboard with per-tool breakdowns
- Funnel analysis
- Retention tracking
- Error tracking
Technical Details
- Current version: v0.1.0
- License: MIT
- Free to self-host with Docker
- Cloud version coming soon
Development Approach
The developers used Claude Code for the majority of the codebase, describing it as their "best friend" during development. The project is being built in the open, with the team actively seeking feedback on what insights developers want about their MCP Apps.
This type of analytics tool is particularly useful for developers building MCP Apps who need visibility into how their tools are being used in production environments.
📖 Read the full source: r/ClaudeAI
👀 See Also

Trepan: Local VS Code Security Auditor for AI-Generated Code
Trepan is an open-source VS Code extension that acts as a security gatekeeper for AI-generated code suggestions. It uses Ollama to run local security audits against project-specific rules in a .trepan/system_rules.md file.

OpenProphet: Open-Source Autonomous Trading Agent with Web UI
OpenProphet is an open-source, autonomous trading agent with a web interface that supports multiple Alpaca accounts simultaneously and runs on OpenCode. It allows configuration of agent personas and strategies, with the ability to use any LLM, not just Claude.

ClawCodex /advisor Mode: Pair Cheap Worker with Expensive Reviewer to Cut Costs Without Losing Quality
Open-source Python coding agent ClawCodex adds an /advisor mode that pairs a cheap worker model (e.g., Haiku) with an expensive reviewer (e.g., Opus) at decision points, cutting costs several-fold without sacrificing architectural judgment.

Savant Commander 48B: A Custom Qwen 3 Mixture-of-Experts Model with 12 Distilled Models
Savant Commander 48B is a custom Qwen 3 Mixture-of-Experts model with hand-coded routing that combines 12 distilled models from providers like Claude, Gemini, OpenAI, and Deepseek. It features 256K context length and allows prompt-controlled activation of specific distilled models.