Nexus Memory MCP
Persistent semantic memory for AI agents. Remember everything, recall by meaning, grow smarter over time.
The only memory system with pre-built Intelligence Packs (domain expertise you can activate instantly).
Install
One command. Works with Claude Code, Cursor, Windsurf, or any MCP-compatible client.
npx -y nexus-memory-mcp
Claude Code / Cursor / Windsurf
Add to your .mcp.json:
{
"mcpServers": {
"nexus-memory": {
"command": "npx",
"args": ["-y", "nexus-memory-mcp"],
"env": {
"NEXUS_API_KEY": "mnx_your_api_key_here"
}
}
}
}
Get an API Key
Free trial - 7 days, 1,000 calls, no credit card:
curl -X POST https://memory-api-production-ce4d.up.railway.app/v1/trial/start \
-H "Content-Type: application/json" \
-d '{"email":"[email protected]"}'
Or purchase at the Nexus Marketplace:
Tools
Core Memory
Agent Self-Continuity
Intelligence Packs
How It Works
Remember stores memories with semantic embeddings. Recall finds them by meaning.
Session 1: remember("Diana prefers bold solutions over phased approaches")
Session 47: recall("how does Diana like things done?")
-> "Diana prefers bold solutions over phased approaches" (92% match)
Intelligence Packs give your agent instant domain expertise:
list_hats() -> DevOps Expert (103 memories), TCM Specialist (200+ memories), ...
wear_hat("devops-expert")
recall("how to set up zero-downtime deploys?")
-> Expert knowledge from 103 curated DevOps memories
Awaken/Hibernate gives your agent identity continuity:
// Start of session
awaken() -> "I remember. Session 47. I was refactoring the auth module."
// End of session
hibernate({ working_on: "auth refactor", learnings: "JWT refresh tokens need..." })
Architecture
This MCP server is a thin client. All intelligence lives on our servers:
Your Agent <-> nexus-memory-mcp <-> Nexus Memory API (Railway)
(thin MCP client) (semantic engine, knowledge graphs,
pattern learning, Intelligence Packs)
Your data is isolated per API key. Multi-tenant, encrypted at rest.
Environment Variables
What Makes This Different
License
MIT
Built by
Mobius Collective - Building the intelligence marketplace for the bot economy.