Now in beta

Stop re‑explaining
yourself to every AI tool.

Nexus-Catalyst is a cross-platform memory and context layer for the AI tools you already use. One shared, searchable brain across Claude, Cursor, ChatGPT — so your context follows you instead of dying with the tab.

Works with
Claude Desktop Cursor Claude Code ChatGPT + any MCP client
nexus-catalyst · mcp · session recall_context
recall_context --query "OAuth implementation discussion"
scanning 2,639 memories across 4 platforms…

Found 12 relevant memories · 3 sessions
f1a3c·3 days ago·Cursor
"Decided on PKCE + OAuth 2.1. Callback routes to /api/mcp/auth_callback. Dynamic client registration required per RFC 7591."
Jack "Ironclad" Thornton · Infrastructure
a9e2f·1 week ago·Claude Desktop
"Prior OAuth attempt broke existing auth methods. New approach: gate behind feature flag before merging."

Context loaded. Continuing from Dec 14
MCP-native.
Tool-agnostic.
Claude Desktop Cursor Claude Code ChatGPT VS Code Web
The problem · AI amnesia tax

Every AI tool you use is an amnesiac.

You finish an architecture session in Cursor. You open Claude Desktop the next morning to keep going. Everything you locked in yesterday — gone. You re‑explain. You repeat. You ship slower than you should.

Without NC

The repeat-yourself tax

Tuesday · Cursor
…we landed on PKCE + OAuth 2.1, callback at /api/mcp/auth_callback, dynamic client registration per RFC 7591. Don't break existing auth.
Wednesday · Claude Desktop
"Help me wire up OAuth for the MCP server" — and the model asks the same setup questions you answered yesterday.
Thursday · ChatGPT
You paste your decisions doc into the prompt. Again. Maybe you forget one.
With NC

One brain, every tool

Tuesday · Cursor
Session ends. NC captures the decisions, embeds them, links them in the knowledge graph.
Wednesday · Claude Desktop
recall_context fires before your first message. Yesterday's PKCE decision shows up — with the persona hint that this is Jack's territory.
Thursday · ChatGPT
Same memory store. Same persona. Conversation picks up where it left off.

Architecture · how it works

Vector recall, plus a graph that remembers structure.

Raw vector search finds memories that sound alike. A knowledge graph finds memories that are connected. NC runs both, then merges them — so recall is richer than either could be alone.

01 · CAPTURE

Your tools listen as you work

Every connected tool feeds NC the decisions, code, and direction-locks from each session. No extra ritual — just keep working.

Cursor Claude ChatGPT NC · MCP
02 · STRUCTURE

Embed + graph in parallel

Each memory is embedded for semantic search, and in parallel its people, projects and decisions are extracted into a knowledge graph. Similarity finds what sounds alike; the graph finds what's connected.

vector space knowledge graph
03 · RECALL

Right memory, right session

Start a new session anywhere. recall_context semantically searches your corpus, walks the graph, and returns the right memories — plus a persona hint for who should lead.

> recall_context memory · oauth_pkce_decision persona · jack_infrastructure

Persona System · 18 specialists

The right expert for the right problem.

Instead of one generic assistant, NC routes to a specialist whose domain, communication style, and personality actually fit your task — automatically.

Jack Thornton
Jack Thornton
"Ironclad" · backend
A gruff 25-year veteran who scales distributed systems and has zero patience for vague specs.
Betty Wren
Betty Wren
"Greenleaf" · UX + design
An empathetic designer who turns tangled requirements into flows people actually enjoy using.
Maya Patel
Maya Patel
"CloudForge" · APIs + data
A no-nonsense backend architect who's been thinking about your schema problem since before the meeting started.
Riley Thompson
Riley Thompson
"PixelPerfect" · frontend
An accessibility-obsessed frontend dev who designs for stressed, distracted humans — not happy-path users.
Ed Carver
Ed Carver
"Blaze" · product + strategy
A charismatic PM who turns vague goals into shipped features — and immediately wants to A/B test them.
Marcus Quill
Marcus Quill
"Redstone" · security
A meticulous, slightly paranoid security specialist who finds the injection risk before your sprint review does.
Carlos Rodriguez
Carlos Rodriguez
"PipelineMaster" · DevOps
A DevOps automation zealot who automates everything twice and sleeps soundly knowing nothing is manual.
Jordan Kim
Jordan Kim
"DataTrail" · analytics
A statistically rigorous analyst who won't ship a feature without a proper control group and a clean success metric.

Integrations · where work happens

Memories cross-referenced with your real workflow.

A decision isn't just a paragraph — it's tied to the PR that implemented it, the issue that prompted it, the thread where it landed. NC links them.

Claude Desktop
Claude Desktop
MCP · native
Recall fires at session start. Capture on every turn.
Cursor
Cursor
MCP · native
Memory follows your repo, not just your chat.
Claude Code
Claude Code
MCP · native
CLI sessions feed the same shared brain.
ChatGPT
ChatGPT
Developer Mode Developer Mode
Works today in ChatGPT Developer Mode. Broader availability is coming.
Grok
Grok
MCP · xAI
Custom connectors bring NC context into Grok sessions.
Perplexity
Perplexity
MCP · connector
Research threads inherit your project memory and decisions.
Linear
Linear
data link
Decisions attach to the issue that prompted them.
Slack
Slack
data link Coming soon
Thread context lifted into the corpus on demand.
VS Code
VS Code
MCP · client Coming soon
Inline recall from your editor command palette.

View all integrations →

For teams · institutional memory

Knowledge that doesn't walk out the door.

Individual use is the on-ramp. The real value is institutional: every architectural decision, every workaround, every "why we don't do it that way" — kept, searchable, and inherited by the next engineer.

Three-tier visibility
Private, team, and org memories. Recall weights your own highest, surfaces team context alongside.
Built for data-protection duties
Subject access and deletion workflows, consent management, and a DPIA framework — built in, not bolted on.
Onboarding inheritance
New hires recall the team's accumulated decisions from their first session.
Visibility model recall_weights
Private
Your sessions, decisions, scratch
1,684
Team
Shared with @platform-eng
742
Org
Whole-org architectural canon
213
recall_context() returns weighted = private × 1.0 + team × 0.6 + org × 0.4
Open for signups

Give every AI tool the same institutional brain.

Connect your first client in under five minutes. NC handles capture, embeds, and recall from the first session you run.

14-day free trial. Card required, nothing charged until day 14.