Persistent memory MCP server for AI coding agents. Ultra-lightweight (46 kB), cloud sync, works with Claude Code, Cursor, Windsurf. npm install apex-memory

apex-memory

Persistent memory for AI coding agents.

Give your AI coding agent memory that survives across sessions. apex-memory is an MCP server that lets agents save decisions, patterns, bugs, and context — then recall them exactly when needed.

• One install, works everywhere — MCP-native, works with Claude Code, Cursor, Windsurf, and any MCP-compatible editor
• Ultra-lightweight — 26.6 kB package, starts in milliseconds, no ML models or vector databases
• Zero infrastructure — local SQLite database, no servers, no accounts
• Built for coding agents — categories like decision, architecture, bug, pattern designed for real development workflows
• Smart memory management — importance scoring (1-5), access tracking, and auto-decay keep your memory store relevant
• Full-text search — find any memory instantly with FTS5-powered search
• Knowledge graph — link memories with directional relationships (related, depends_on, supersedes, contradicts, extends)
• Dedup detection — automatic duplicate warnings on save, Jaccard similarity scanning, and one-click merge
• Cloud sync — sync memories across machines with the Pro tier

Quick Start

Claude Code

Claude MCP add apex-memory -- npx apex-memory

That's it. Your agent now has persistent memory.

Cursor

Add to your MCP settings (.cursor/mcp.json):

{
  "mcpServers": {
    "apex-memory": {
      "command": "npx",
      "args": ["apex-memo