MCPShark Viewer (VS Code/Cursor extension)- view MCP traffic in-editor
Details
- External ID
- 46303323
- Source
- HN
- Company
- —
- Product
- —
- Website domain
- —
- Launched
- Dec. 17, 2025
- Cohort
- —
- Upvotes
- 28
- Upvotes percentile
- 0.7185114503816794
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:25 p.m.
- Updated at
- Sept. 7, 2026, 9:25 p.m.
Description
A few days ago I posted MCPShark (a traffic inspector for the Model Context Protocol). I just shipped a VS Code / Cursor extension that lets you view MCP traffic directly in the editor, so you’re not jumping between terminals, logs, and "I think this is what got sent".VS Code Marketplace: https://marketplace.visualstudio.com/items?itemName=MCPShark...Main repo: https://github.com/mcp-shark/mcp-sharkFeature requests / issues: https://github.com/mcp-shark/mcp-shark/issuesSite: https://mcpshark.sh/If you’re building MCP agents/tools: what would make MCP debugging actually easy—timeline view, session grouping, diffing tool args, exporting traces, something else? I’d be thankful if you could open a feature request here: https://github.com/mcp-shark/mcp-shark/issues
Enrichment
- Theme
- Model Context Protocol developer tools
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- mcp traffic debugger for vs code
- Manually corrected
- False
Could you build this?
Yes It is an editor extension that acts as a local proxy or event listener displaying Model Context Protocol JSON-RPC traffic in a webview panel.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one — 95 launches clear the similarity bar, closest 8 shown.
Attention rank: #31 of 96 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 43 days after the earliest competitor.
- MCPShark · hn · 2025-12-10 · 37 upvotes · similarity 0.77
- MCP Flow Detection · hn · 2025-11-20 · 11 upvotes · similarity 0.59
- MCP Traffic Analysis Tool · hn · 2025-11-17 · 38 upvotes · similarity 0.47
- Reticle · hn · 2026-01-06 · 5 upvotes · similarity 0.47
- Dap-mux · hn · 2026-06-06 · 7 upvotes · similarity 0.45
- MCPBouncer · ph · 2026-09-14 · 1 upvotes · similarity 0.44
- Markdown Visual · ph · 2026-09-30 · 2 upvotes · similarity 0.43
- mcp-audit-tool · github · 2026-09-26 · 120 upvotes · similarity 0.42
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.