Claude Code

Claude Code supports MCP servers, letting it access MemNexus memory during coding sessions. This means Claude Code can remember your project context, coding preferences, and past debugging sessions.

Prerequisites

• Claude Code installed
• A MemNexus API key (sign up)
• Node.js 18+ installed

Setup

1. Add the MCP server

Configure MemNexus as an MCP server in your Claude Code settings. Add to your MCP configuration:

{
  "mcpServers": {
    "memnexus": {
      "command": "npx",
      "args": ["@memnexus-ai/mcp-server"],
      "env": {
        "MEMNEXUS_API_KEY": "cmk_live_xxx.yyy"
      }
    }
  }
}

2. Verify

Start a Claude Code session and ask:

"Search my memories for recent coding context"

What Claude Code remembers

With MemNexus, Claude Code can recall:

• Project structure — Tech stack, architecture, conventions
• Coding patterns — Error handling, API patterns, component structure
• Past decisions — Why you chose a particular approach
• Bug fixes — Root causes and solutions from past debugging
• Preferences — Formatting, libraries, naming conventions

Usage patterns

Automatic context loading

Add to your project's instructions:

At the start of each session, search MemNexus for context about this project
using the project name. Use the results to understand existing patterns
and conventions before making changes.

Saving debugging sessions

When you fix a tricky bug, Claude Code can save the resolution:

"Save a memory about this fix — the CORS issue was caused by the API gateway stripping the credentials header"

Building project knowledge

Over time, Claude Code builds a knowledge base about your project:

Session 1: Learns project structure and tech stack
Session 2: Learns error handling patterns
Session 3: Learns deployment process
Session 4: Applies all accumulated knowledge

Tips

• Use with CLAUDE.md — Combine MemNexus memory with project-level CLAUDE.md for both persistent and per-project context
• Save before switching — When switching between projects, save your current context
• Topic by project — Use project names as topics to keep memories organized

Troubleshooting

If tools aren't working:

1. Check that the MCP server configuration is valid JSON
2. Ensure npx is in your PATH
3. Verify the API key: mx auth status
4. Restart Claude Code

Next steps

• Cursor — Set up memory in Cursor
• Agent Patterns — Design patterns for coding assistants
• MCP Integration — Full tool reference