mcpsnoop (Wireshark for MCP)
Wireshark for MCP — a transparent proxy that shows every real JSON-RPC frame between your AI client and MCP servers, live in the terminal. Unlike the official MCP Inspector (which connects as its own client), mcpsnoop sits in the actual data path so it sees exactly what your real client sends and receives.
✅ Pros / Advantages
- • Transparent Stdio Proxy
- • Live Interactive TUI
- • Streamable-HTTP Proxy Mode
- • Call Quality Flags & CI Integration
- • Rich Filtering System
❌ Cons / Limitations
- • Only useful for MCP server developers, not end-users of AI coding tools
- • No web UI — terminal-only interface limits accessibility
- • No SaaS/cloud offering, all sessions are local
- • Limited MCP transport support — stdio and streamable-HTTP only
- • New project (June 2026), single maintainer — bus-factor risk
💰 Pricing Plans
Free
Pricing details are gathered from public sources and are subject to change. Please visit the official website for real-time rates.
Last updated: July 2026 · 9bests editorial review
✅ Who should use mcpsnoop (Wireshark for MCP)
- • Transparent Stdio Proxy
- • Live Interactive TUI
- • Streamable-HTTP Proxy Mode
- • Call Quality Flags & CI Integration
- • Rich Filtering System
⚠️ Who should look elsewhere
- • Only useful for MCP server developers, not end-users of AI coding tools
- • No web UI — terminal-only interface limits accessibility
- • No SaaS/cloud offering, all sessions are local
- • Limited MCP transport support — stdio and streamable-HTTP only
- • New project (June 2026), single maintainer — bus-factor risk
🎯 Common use cases
Autocompleting and refactoring code
Multi-file AI edits
Debugging and test generation
⚖️ mcpsnoop (Wireshark for MCP) vs Cursor
| mcpsnoop (Wireshark for MCP) | Cursor | |
|---|---|---|
| Rating | 4.1/5 | 4.8/5 |
| Pricing | Free | Free / $20/mo |
| Key strength | Transparent Stdio Proxy | Best AI code editor |
See the full head-to-head in our mcpsnoop (Wireshark for MCP) vs Cursor comparison.
❓ Frequently asked questions
Is mcpsnoop (Wireshark for MCP) free?
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mcpsnoop (Wireshark for MCP) offers a free tier (Free). Paid plans unlock higher limits and advanced features.
What is mcpsnoop (Wireshark for MCP) best for?
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mcpsnoop (Wireshark for MCP) is best for Transparent Stdio Proxy and Live Interactive TUI. Wireshark for MCP — a transparent proxy that shows every real JSON-RPC frame between your AI client and MCP servers, live in the terminal. Unlike the official MCP Inspector (which connects as its own client), mcpsnoop sits in the actual data path so it sees exactly what your real client sends and receives.
How does mcpsnoop (Wireshark for MCP) compare to Cursor?
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mcpsnoop (Wireshark for MCP) (4.1/5) and Cursor (4.8/5) serve overlapping needs. mcpsnoop (Wireshark for MCP) stands out for Transparent Stdio Proxy, while Cursor is stronger at Best AI code editor. Choose based on your priority.
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