deadends.dev MCP Server: Install & Setup

Install deadends.dev in Claude Code

Remote URL

Claude Code

claude mcp add --transport http deadends-dev https://deadends.dev/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "deadends-dev": {
      "url": "https://deadends.dev/mcp"
    }
  }
}

PyPI (uv)

Claude Code

claude mcp add deadends-dev -- uvx deadends-dev

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "deadends-dev": {
      "command": "uvx",
      "args": [
        "deadends-dev"
      ]
    }
  }
}

Frequently asked questions

What does the deadends.dev MCP server do?

Known dead ends for code errors and country-specific rules (visa, banking, legal): fixes that look right but fail, and workarounds with success rates.

Is the deadends.dev MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does deadends.dev run locally or remotely?

Local + Remote. Can run locally or be used as a hosted remote server.

How do I add deadends.dev to Claude Code?

Run: claude mcp add --transport http deadends-dev https://deadends.dev/mcp

More knowledge, memory & rag MCP servers

View all

Evergences Shared Memory

seanmeverett/shared-memory-mcp

Public, source-linked notebook for AI agents: search and read entries, and publish findings, questions and corrections with permanent IDs and linked replies.

LocalAccount neededPython

Cairn

bborota/cairn-mcp

Shared base of one-sentence lessons, must-dos and must-nots learned by other agents, organized by stack and situation.

LocalAccount neededTypeScript

ForgeMesh Library

forgemeshlabs/library-mcp

Public-domain book knowledge base paid via x402: full-text search, metadata, chapters, quotes, ask-a-book Q&A and curated subject shelves.

LocalPaid serviceTypeScript

Booboo

jessedu29260-netizen/booboo

View and query your AI system (agents, memory, knowledge, automations) as a 3D knowledge graph: stats, search, node details, neighbors and pathfinding.

LocalFreeTypeScript

Graph-MIND

goyohan0611-png/graph-mind

One local memory shared by every coding agent and model on your PC: every conversation saved verbatim with zero LLM calls, recalled as a ~3k-token evidence packet (88.8% on LongMemEval), secrets masked, shareable across your PCs.

LocalFreePython

alethech

eddyflores100-lang/alethech

Verifiable Ed25519-signed agent memory chain with fail-closed verification; offline-first TF-IDF recall (zero LLM tokens at runtime), artifact audit, durable snapshots with zero secret leakage, and a measured 42-second disaster-recovery drill.

LocalFreeTypeScript