ChatCrystal ChatCrystal
0.5.2 · Dawn Haze UI refresh

ChatCrystal

A calm local workspace that turns AI coding conversations into notes, tag graphs, Markdown exports, and reusable context for your next agent session.

5
AI coding sources
Local
SQLite + vector index
MCP
Recall knowledge from agents
Download Desktop App
localhost:3721
ChatCrystal workspace

Dawn Haze

SQLite · Vector · MCP

ChatCrystal secondary view

Works with your favorite AI coding tools

Claude Code JSONL conversations
Cursor Workspace history
Codex CLI Session events
Trae Agent task history
GitHub Copilot Chat sessions

From chat history to reusable knowledge

01

Import

Scan Claude Code, Cursor, Codex CLI, Trae, and Copilot histories from your machine.

02
Crystallize

Crystallize

LLMs extract summaries, decisions, code snippets, source metadata, and tags.

03

Explore

Search semantically, browse notes, and inspect the tag-based knowledge graph.

04

Reuse

Export Markdown or let MCP recall the right memories inside your agent workflow.

What changed in 0.5.x

A brighter workspace for serious recall

Dawn Haze interface

Dawn Haze interface

A light desktop workspace with warm paper surfaces, compact controls, and shadcn/ui polish.

Tag knowledge graph

Tag knowledge graph

Tags become knowledge-point nodes with readable neighborhoods, details, and project context.

Sharper semantic search

Sharper semantic search

Natural-language results now balance embeddings with lexical signal so weak hits stay out.

Markdown export

Markdown export

Save a note as clean Markdown with localized headings and minimal frontmatter.

mcp://chatcrystalLOCAL
$crystal mcp
toolrecall_for_task project=ChatCrystal
matchDawn Haze theme tokens · 0.92
writetask memory saved locally

Agent memory loop

MCP tools recall and write reusable task memories from the same local knowledge base.

Desktop and cloud controls

Desktop and cloud controls

Use the tray app, manual update checks, token access, and optional personal cloud deployment.

Your machinelocal-first
AI conversations
Claude CodeCursorCodex CLITraeCopilot
ChatCrystal
SQLite
on device
Vector Index
on device
MCP
on device

Your data stays local

Never leaves your machine

SQLite local storage, zero cloud dependency

Fully open source

Apache-2.0 licensed, transparent and auditable

You're in control

Choose your LLM provider — supports Ollama for fully local AI

CLI + MCP

Keep the workflow close to the terminal

The same local server powers the desktop app, REST API, CLI, and MCP memory tools.

REST APIDesktopCLIMCP
crystal
$crystal import --source codex
scan local sessions
$crystal search "jwt cache strategy"
semantic recall
$crystal mcp
serve agent tools