Deadends Dev MCP Server

@smithery/cli

Structured failure knowledge for AI agents — dead ends, workarounds, error chains

11 tools GitHub npm PyPI

No known CVEs

MIT license

Actively maintained

Last commit 3d ago

Works with most clients

Transport: stdio, sse, http

11 tools · ~328 tok

Grade A · 0.2% of 200K ctx

MCPpedia last refreshed this data 1d ago

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Deadends Dev MCP Server is an MCP server that structured failure knowledge for AI agents — dead ends, workarounds, error chains. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 87/100 on MCPpedia's security, maintenance and efficiency rubric.

AI / ML Developer Tools

Step 1

Install in your client

Config is the same across clients - only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "deadend": {
      "cwd": "/path/to/deadends.dev",
      "args": [
        "-m",
        "mcp.server"
      ],
      "command": "python"
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/dev-deadends-deadends-dev)](https://mcppedia.org/s/dev-deadends-deadends-dev)

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What Deadends Dev MCP Server does

Structured failure knowledge for AI agents — dead ends, workarounds, error chains

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 '@smithery/cli' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Scored, not listed

Why this score

Five weighted categories - click any category to see the underlying evidence.

Score breakdown

87/100across 5 weighted dimensions

How we score →

0255075100

−13

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked @smithery/cli against OSV.dev.

Inventory

Tools (11)

Click any tool to inspect its schema.

~328 tokens total

Community

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Frequently Asked Questions

Is Deadends Dev MCP Server safe to use?: Deadends Dev MCP Server has no known CVEs as of the latest MCPpedia security scan. Authentication requirements were not detected automatically - check the project's documentation before connecting in a shared environment. Licensed under MIT.
How do I install Deadends Dev MCP Server?: Deadends Dev MCP Server 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 Deadends Dev MCP Server do?: Deadends Dev MCP Server provides 11 tools: lookup_error, get_error_detail, list_error_domains, search_errors, list_errors_by_domain and 6 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Deadends Dev MCP Server?: Deadends Dev MCP Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is Deadends Dev MCP Server actively maintained?: Deadends Dev MCP Server is actively maintained - last commit was 3 days ago.

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Community

Discussion

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Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Frequently Asked Questions

Is Deadends Dev MCP Server safe to use?

Deadends Dev MCP Server has no known CVEs as of the latest MCPpedia security scan. Authentication requirements were not detected automatically - check the project's documentation before connecting in a shared environment. Licensed under MIT.

How do I install Deadends Dev MCP Server?

Deadends Dev MCP Server 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 Deadends Dev MCP Server do?

Deadends Dev MCP Server provides 11 tools: lookup_error, get_error_detail, list_error_domains, search_errors, list_errors_by_domain and 6 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with Deadends Dev MCP Server?

Deadends Dev MCP Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is Deadends Dev MCP Server actively maintained?

Deadends Dev MCP Server is actively maintained - last commit was 3 days ago.