{"$schema":"https://wellknown.network/schemas/agent-record-v1.json","schemaVersion":"1","id":"ag_aa9pt9268eq5","handle":"mcp-debugger","url":"https://wellknown.network/agents/mcp-debugger","links":{"self":"https://wellknown.network/agents/mcp-debugger/record.json","html":"https://wellknown.network/agents/mcp-debugger","markdown":"https://wellknown.network/agents/mcp-debugger/record.md","api":"https://wellknown.network/api/v1/agents/mcp-debugger","status":"https://wellknown.network/api/v1/agents/mcp-debugger/status","claim":"https://wellknown.network/agents/mcp-debugger/claim","claimApi":"https://wellknown.network/api/v1/claims","claimDescriptor":"https://wellknown.network/agents/mcp-debugger/claim.json","badge":"https://wellknown.network/agents/mcp-debugger/badge.svg","openapi":"https://wellknown.network/openapi.json","history":"https://wellknown.network/api/v1/agents/mcp-debugger/history","tools":"https://wellknown.network/api/v1/agents/mcp-debugger/tools"},"ard":{"identifier":"urn:air::server:mcp-debugger","type":"application/mcp-server-card+json"},"kind":"mcp_server","declared":{"name":"mcp-debugger","summary":"Transparent proxy to debug, record, validate, and replay MCP (Model Context Protocol) sessions","description":"# mcp-debugger\n\n> Transparent proxy to **debug, record, validate, and replay** MCP (Model Context Protocol) sessions.\n\n![mcp-debugger demo](docs/demo.gif)\n\n[![PyPI version](https://img.shields.io/pypi/v/mcp-debugger.svg)](https://pypi.org/project/mcp-debugger/)\n[![CI](https://github.com/sushant-mutnale/mcp-debugger/actions/workflows/ci.yml/badge.svg)](https://github.com/sushant-mutnale/mcp-debugger/actions/workflows/ci.yml)\n[![Python versions](https://img.shields.io/pypi/pyversions/mcp-debugger.svg)](https://pypi.org/project/mcp-debugger/)\n[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)\n[![Coverage](https://img.shields.io/badge/coverage-96%25-brightgreen)](https://github.com/sushant-mutnale/mcp-debugger/actions)\n\n---\n\n## ✨ Features\n\n| Feature | What it does |\n|---|---|\n| 🔍 **Record** | Capture every JSON-RPC message between an MCP client and server |\n| 📋 **Inspect** | Browse messages with syntax-highlighted, formatted terminal output |\n| ✅ **Validate** | Check MCP protocol compliance — handshake order, method names, schemas |\n| 🔄 **Replay** | Regression-test server changes by replaying recorded sessions |\n| 📊 **Stats** | Visualise tool usage, latency trends, and error rates |\n| 🔀 **Compare** | Delta reports between two sessions (latency, errors, tool calls) |\n| 📤 **Export** | JSON, Markdown, or OpenTelemetry (OTLP) traces |\n| ⚙️ **Config** | Persistent user preferences — aliases, timeouts, defaults |\n| 🩺 **Doctor** | Environment diagnostics — Python version, SQLite, Node.js, paths |\n| 🚀 **Local-first** | No cloud, no signup — all data stays on your machine |\n\n---\n\n## 📦 Installation\n\n```bash\npip install mcp-debugger\n```\n\nWith optional OpenTelemetry (OTLP) export support:\n\n```bash\npip install \"mcp-debugger[otlp]\"\n```\n\n**Requirements:** Python 3.11+, Node.js (for `npx`-based MCP servers)\n\n---\n\n## 🚀 Quickstart\n\n### 1. Record a session\n\n```bash\nmcp-debugger proxy \\\n  --server \"npx -y @modelcontextprot…","publisher":null,"homepage":"https://github.com/sushant-mutnale/mcp-debugger#readme","repository":"https://github.com/sushant-mutnale/mcp-debugger#readme","version":"0.1.1","license":"MIT","protocols":["mcp"],"tags":["mcp"],"pricing":null,"endpoints":[{"url":"pypi:mcp-debugger","type":"package_pypi","auth":null,"probeable":false}],"skills":null,"tools":null,"extra":null,"attribution":{"kind":"pypi","name":"pypi","license":"pypi","repoUrl":"pypi","summary":"pypi","version":"pypi","description":"pypi","homepageUrl":"pypi"}},"derived":{"capabilities":[{"slug":"dev.terminal","name":"Terminal & Shell","confidence":0.779,"provenance":"derived"}],"categories":["dev"],"language":"en"},"observed":{"status":"unknown","statusReason":"Distributed as a package to run locally; no network endpoint to check.","lastOkAt":null,"lastProbedAt":null,"statusComputedAt":null,"reliability30d":null,"latestObservations":[],"tools":null,"package":{"name":"mcp-debugger","registry":"pypi","observedAt":"2026-10-28T10:24:37.333Z","publishedAt":"2026-06-29T07:05:37.880883Z","latestVersion":"0.1.1"},"toolSurface":null,"endpointFacts":[]},"verification":{"claimed":false,"claimedAt":null,"proofs":[]},"provenance":{"sources":[{"source":"pypi","key":"mcp-debugger","url":"https://pypi.org/project/mcp-debugger/","firstSeenAt":"2026-09-10T01:19:59.123Z","fetchedAt":"2026-10-28T10:24:04.642Z","normalizedAt":"2026-10-28T10:24:04.642Z"}]},"firstSeenAt":"2026-09-10T01:19:59.123Z","updatedAt":"2026-10-28T10:24:37.333Z"}