Capture sessions — distill knowledge — feed it back

Your AI sessions, remembered and distilled

Synapse automatically captures your AI coding sessions from Claude, Cursor, Codex, and Gemini. When you go idle, it distills the valuable parts — decisions, architecture, learnings — into a searchable workspace your tools can read next time.

Captured session
you Should we use Redis or Memcached?
claude Redis — pub/sub support for cache invalidation
you What about the auth middleware?
claude Switch to session cookies. JWT refresh was unreliable...
+146 more messages
distill
Extracted knowledge
decisions/chose-redis.md decision
decisions/session-cookies.md decision
learnings/jwt-refresh-gotcha.md learning
Claude Code
Cursor
Codex

Works with your favorite AI tools

ClaudeChatGPTCursorWindsurfGitHub CopilotVS CodeZedJetBrainsNeovimWarpiTermAny MCP ClientClaudeChatGPTCursorWindsurfGitHub CopilotVS CodeZedJetBrainsNeovimWarpiTermAny MCP ClientClaudeChatGPTCursorWindsurfGitHub CopilotVS CodeZedJetBrainsNeovimWarpiTermAny MCP Client

Your best AI conversations disappear

Hundreds of sessions full of decisions, architecture, and debugging insights

Trapped in chat logs you’ll never scroll back to

Every morning, you re-explain your own project to your own tools

The knowledge is there — it just never gets extracted

How it works

1
.mcp.json
{
"mcpServers": {
"synapse": {
"command": "npx"
}
}
}

Capture

A background daemon silently records your sessions from Claude Code, Cursor, Codex, and Gemini

2
Claude
S
ChatGPT

Distill

An LLM extracts decisions, architecture, and learnings — the signal from the noise

3

Remember

Next session, your AI tools search the workspace and already have context from every past conversation

Two commands. That's it.

Sign up, start capturing. Your sessions become knowledge automatically.

$ npm install -g synapsesync-mcp && synapsesync-mcp wizard && synapsesync-mcp capture start

Works with Claude Code, Cursor, VS Code, Windsurf, and any MCP client.

1 Run the command above
2 Sign in and start capturing
3 Sessions become knowledge

Everything you need

Workspace
decisions/
chose-redis.md
api-design.md
architecture/
gateway.md
notes/

Zero-effort capture

A background daemon watches Claude Code, Cursor, Codex, and Gemini. No plugins, no prompts, no manual saving.

Claude
Cursor
S
GPT
Copilot

LLM distillation

An LLM reads your sessions and extracts decisions, architecture notes, and learnings. Signal from noise, automatically.

v1 Mar 20
v2 Mar 21
v3 Today
Restore any version

Cross-tool memory

Knowledge captured from Claude is available in Cursor. From your laptop to your desktop. Across your whole team.

Team members
A
Alice Admin
B
Bob Editor
C
Carol Viewer

Semantic search

Search by meaning, not keywords. “Auth flow” finds documents about login, session tokens, and OAuth.

📄 decisions/
📄 notes/
📄 architecture/
.zip
2.4 MB

End-to-end encryption

Set a passphrase and content is encrypted before it leaves your machine. The server never sees plaintext.

The difference is night and day

Without Synapse
Re-explain your project every morning
Knowledge trapped in closed chat tabs
Claude doesn't know what Cursor knows
Teammates re-discover the same things
With Synapse
Your AI already knows what you decided yesterday
Sessions captured and distilled automatically
All tools share the same knowledge base
Team sessions build shared understanding

Frequently asked questions

A lightweight background daemon watches where your AI tools store session data on disk (JSONL for Claude Code, JSON for Cursor, etc.). When files change, it parses them into a standard format. No plugins needed — it works by watching the filesystem.

When a session goes idle, Synapse sends the transcript to an LLM (your choice of Anthropic, OpenAI, or Google) that extracts decisions, architecture notes, and learnings. Trivial exchanges are skipped. Only the valuable stuff makes it into your workspace.

Capture works with Claude Code, Cursor, Codex CLI, and Gemini CLI. The knowledge workspace is accessible from any MCP-capable tool, including ChatGPT, Windsurf, VS Code, and GitHub Copilot.

Yes. You can enable end-to-end encryption with a passphrase — content is encrypted on your machine before it ever hits the server. We cannot read your files. Captured sessions are stored locally by default and only sync to the cloud if you have an API key configured.

Free tier: 50 files, 3 connected devices. Capture and local storage are free with no limits. Plus at $5.99/mo for cloud sync, team sharing, and more projects. You provide your own LLM API key for distillation.

Stop losing your best AI conversations

Capture sessions, distill knowledge, remember everything. Free to start.