Capture sessions — distill knowledge — feed it back

Your AI sessions, remembered and distilled

Synapse automatically captures your AI coding sessions across every tool you use. When you go idle, it distills the valuable parts — decisions, architecture, learnings — into a curated knowledge layer your next session opens with.

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
Anthropic
OpenAI
Google

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
capturing
cursor session-start
codex user-prompt
claude tool-use
gemini session-end

Capture

A background daemon silently records your AI coding sessions across every tool you use

2
Decision
Architecture
Learning

Distill

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

3
CONTEXT LOADED
Last session
Next step

Remember

Next session opens with a brief from the workspace — your AI tools have context from every past conversation, no re-briefing needed

Two commands. That's it.

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

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

Works with any AI coding tool that uses Anthropic, OpenAI, or Google APIs.

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 captures every AI session — across tools, through the proxy or per-tool file-watcher. 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 in one AI tool is available in every other. 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

Two paths. (1) A lightweight background daemon watches where AI tools store session data on disk and parses new files into a standard format — works for the tools we have file-watcher adapters for. (2) A built-in TLS-MITM forward proxy intercepts traffic to the Anthropic, OpenAI, and Google APIs — works for any tool that honors HTTPS_PROXY, with no per-tool adapter needed. No plugins, no manual saving.

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.

Any tool that talks to the Anthropic, OpenAI, or Google API — Cline, Cursor, Codex, Claude Code, Gemini, OpenCode, Aider, custom scripts, and more — is captured via the built-in proxy with no per-tool setup. File-watcher adapters add an extra capture path for Claude Code (via hooks), Cline, Cursor, Codex, Gemini, GitHub Copilot CLI, and Roo Code. The knowledge workspace is accessible from any MCP-capable tool, including ChatGPT, Windsurf, and VS Code.

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: up to 50 projects with all capture features, MCP access, and 1-on-1 email invites. Plus at $5.99/mo adds AI-generated project context, link-based sharing, unlimited team members per project, and version history. You provide your own LLM API key for distillation.

Stop losing your best AI conversations

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