Mcp Chaos Rig
mcp-chaos-rig · by Typewise
A local MCP server that breaks on demand. Test your client against auth failures, disappearing tools, flaky responses, and token expiry, all from a web UI.
No known CVEs
MIT license
Actively maintained
Last commit 6d ago
Works with most clients
Transport: stdio, sse, http
10 tools · ~393 tok
Grade A · 0.2% of 200K ctx
Step 1
Install in your client
Config is the same across clients — only the file and path differ.
CD
Supported in Claude Desktopstdio, sse, http · Node 18+
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"mcp-chaos-rig": {
"args": [
"-y",
"mcp-chaos-rig"
],
"command": "npx"
}
}
}Are you the author?
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[](https://mcppedia.org/s/mcp-chaos-rig)
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What Mcp Chaos Rig does
You're building an MCP client. You need to test OAuth flows, token refresh, tool discovery, error handling, and session lifecycle. Production servers don't fail on command. You need a server that does.
Test This Server
Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.
npx -y 'mcp-chaos-rig' 2>&1 | head -1 && echo "✓ Server started successfully"
After testing, let us know if it worked:
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Scored, not listed
Why this score
Five weighted categories — click any category to see the underlying evidence.
Score breakdown
90/100across 5 weighted dimensions
0255075100
30
15
20
15
10
−10
Security
Maintenance
Efficiency
Documentation
Compatibility
Categoriesclick a row to see evidence
Security
OSV.devNo known CVEs.
Checked mcp-chaos-rig against OSV.dev.
Inventory
Tools (10)
Click any tool to inspect its schema.
~393 tokens total
Community
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Frequently Asked Questions
- Is Mcp Chaos Rig safe to use?
- Mcp Chaos Rig has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
- How do I install Mcp Chaos Rig?
- Mcp Chaos Rig supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
- What can Mcp Chaos Rig do?
- Mcp Chaos Rig provides 10 tools: echo, add, get-time, random-number, reverse and 5 more. See the full tools list on the server page for descriptions and parameters.
- What AI clients work with Mcp Chaos Rig?
- Mcp Chaos Rig is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
- Is Mcp Chaos Rig actively maintained?
- Mcp Chaos Rig is actively maintained — last commit was 6 days ago. It has 10 GitHub stars.
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Community
Discussion
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