Context7
Up-to-date docs for AI agents
제작자가 쓴 설명(영어 원문)
Personal knowledge graph every MCP client reads from and writes to. Portable across agents.
이 세 가지는 절대 하나의 점수로 합치지 않아요. 의견, 측정, 인기는 서로 다른 것이니까요.
이 서버는 아직 쉬운 말로 된 요약을 쓰지 못했어요. 아래는 레지스트리에서 읽어 온 사실이에요.
쓰고 있는 AI 앱을 고른 다음 설정을 복사하세요.
COSMOS_TOKEN비밀로 표시된 값은 내 계정의 열쇠예요. 절대 다른 사람과 공유하거나 채팅에 붙여 넣지 마세요.
필요한 것
어떤 앱을 쓰세요?
위에서 앱을 고르세요. 기억해 두었다가 다음부터는 버튼에 “…에 설치”라고 표시해요.
Claude Desktop → Settings → Developer → Edit Config를 열고 claude_desktop_config.json에 이 내용을 붙여 넣으세요
{
"mcpServers": {
"cosmos": {
"command": "npx",
"args": [
"-y",
"@polarity-lab/cosmos-mcp"
],
"env": {
"COSMOS_TOKEN": "your-value"
}
}
}
}터미널에서 이 명령어를 실행하세요
claude mcp add cosmos --env COSMOS_TOKEN=your-value -- npx -y @polarity-lab/cosmos-mcp실행하기 전에 빈 값을 채워 주세요.
프로젝트의 .cursor/mcp.json 또는 ~/.cursor/mcp.json에 붙여 넣으세요
{
"mcpServers": {
"cosmos": {
"command": "npx",
"args": [
"-y",
"@polarity-lab/cosmos-mcp"
],
"env": {
"COSMOS_TOKEN": "your-value"
}
}
}
}브라우저가 앱을 열지 물어본 다음, 앱이 설정을 보여 주고 확인을 요청해요. 키 값은 비워 두니 직접 입력하세요.
프로젝트의 .vscode/mcp.json에 붙여 넣으세요
{
"servers": {
"cosmos": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@polarity-lab/cosmos-mcp"
],
"env": {
"COSMOS_TOKEN": "your-value"
}
}
}
}브라우저가 앱을 열지 물어본 다음, 앱이 설정을 보여 주고 확인을 요청해요. 키 값은 비워 두니 직접 입력하세요.
이 서버는 내 컴퓨터에서 실행되는데, ChatGPT는 인터넷에 있는 서버에만 연결할 수 있어요. 다른 앱을 고르세요.
선택한 앱은 이 기기의 쿠키에만 저장돼요. 계정은 필요 없어요.
이 설정은 제작자의 레지스트리 정보로 만들었어요. README와 다르면 README를 따르세요.
내 컴퓨터에서 실행돼요. 설치하면 AI 앱에 도구 목록이 나타나요.
누구나 볼 수 있는 정보를 점검했고, 코드는 읽지 않았어요. 해당하지 않는 항목은 개수에서 뺐어요. · 2026년 11월 7일 점검
레지스트리 이름이 GitHub 계정 teampolarity 기준으로 확인되었고, 이 계정이 저장소를 소유하고 있어요
아직 GitHub에서 이 저장소를 읽어 오지 않았어요
아직 GitHub에서 이 저장소를 읽어 오지 않았어요
내 컴퓨터에서 실행되는 서버라 인터넷 엔드포인트가 없어요
내 컴퓨터에서 실행되며, 대신 로컬 설정을 사용해요
내 컴퓨터에서 실행돼요. 도구 목록은 인터넷 엔드포인트가 있는 서버에서만 읽을 수 있어요
레지스트리에서 이 카테고리의 활성 서버 전체와 비교했어요. 스타는 게시자가 저장소를 소유한 경우에만 세요.
해당하는 기본 점검 1개 중 1개를 통과했어요. 코드는 읽지 않았어요. 키나 토큰을 넣기 전에 서버가 어떤 권한을 요구하는지 확인하고, 꼭 필요한 권한만 있는 키를 쓰세요.
입력해야 할 값: COSMOS_TOKEN
내 컴퓨터에서 실행돼요. AI 앱이 필요할 때 실행하고, 데이터는 제작자의 서버를 거치지 않아요(서버 자체가 온라인 서비스를 호출하는 경우는 제외).
GitHub 저장소는 마지막으로 – 변경됐고, 최신 버전(0.7.1)은 6개월 전 레지스트리에 올라왔어요.
Claude Desktop, Claude Code, Cursor, VS Code처럼 MCP를 지원하는 앱에서 쓸 수 있어요. 내 컴퓨터에 Node.js도 있어야 해요.
같은 카테고리에는: Context7, Codebase Memory, Exa
같은 카테고리에서 다른 제작자가 만든 서버예요. 스타 순으로 정렬했어요.
카드 보는 법:★ GitHub 스타i세 기둥: 리뷰 · 점검 · 사용 정도i업데이트 = 최신 버전을 레지스트리에 공개한 날i
Up-to-date docs for AI agents
Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.
Connect AI agents to Exa for web search, content fetching, and multi-step research.
제작자의 저장소에서 쓰인 그대로 가져왔어요. PopNx MCP가 검토하거나 보증한 내용이 아니에요. HTML, 이미지, 스크립트는 제거했어요. 링크를 누르면 이 사이트를 벗어나요.
cosmos-mcp
One exocortex. Every agent.
MCP server for your Cosmos graph.
Every AI you use is building its own private graph of you. Claude has one. ChatGPT has one. Cursor has one. None of them talk to each other, and none of them are yours.
Cosmos inverts that. Your knowledge graph lives in one place, and any MCP-capable client (Claude Code, Claude Desktop, Cursor, Codex, Zed, Continue) reads and writes to the same one. When an agent notices something durable about you, it lands in the graph. When you switch tools, the graph follows. The user, not the platform, owns the integration layer.
The thing you carry is a .polarity file. Yours.
curl -fsSL https://mcp.polarity-lab.com/install.sh | sh
On macOS this installs the MCP server, registers cosmos-mcp://, wires Claude Desktop, Claude Code, Cursor, Codex, Zed, and Continue, then installs Cosmos Sync.app so iMessage, browser history, calendar, Claude Desktop transcripts, and shell history can sync in the background. On linux and windows it installs the MCP server path only.
If you want to inspect before changing anything:
curl -fsSL https://mcp.polarity-lab.com/install.sh -o install.sh
bash install.sh --dry-run bash install.sh
There are two ways to get a pmk_… key onto your Mac.
Automatic. Sign in at cosmos.polarity-lab.com/connectors, tap "open in cosmos-mcp." The OS opens a one-shot handler that writes the key into your system keychain. You never see the raw key.
For that deep link to work, register the URL scheme once:
npx -y @polarity-lab/cosmos-mcp install-handler
This drops a tiny .app into ~/Library/Application Support/cosmos-mcp/ and registers cosmos-mcp:// with Launch Services. macOS-only.
Manual. If you already have a pmk_… key, or you do not want to install the handler:
npx -y @polarity-lab/cosmos-mcp provision pmk_xxx
The CLI validates the key against cosmos, then stores it in the macOS system keychain under service cosmos-mcp-key. Subsequent imessage sync, browser sync, calendar sync calls read from the keychain. No env var needed.
Confirm iMessage access.
npx -y @polarity-lab/cosmos-mcp imessage probe
Verifies Full Disk Access is granted and reports how many chats are visible. If you see an EACCES message, open System Settings, Privacy & Security, Full Disk Access, and add Terminal (or whichever app runs the CLI).
CI. Set COSMOS_TOKEN=pmk_… in env. It takes precedence over the keychain, so existing pipelines keep working untouched.
The installer handles this for common clients. If you want to wire a client by hand, point it at the package.
npx -y @polarity-lab/cosmos-mcp init
This opens your browser. Sign in at cosmos.polarity-lab.com, approve a per-user key, and the token lands at ~/.config/cosmos-mcp/token (0600). Then point any MCP client at it:
{
"mcpServers": { "cosmos": { "command": "npx", "args": ["-y", "@polarity-lab/cosmos-mcp"] } } }
That config drops into ~/Library/Application Support/Claude/claude_desktop_config.json for Claude Desktop, your .cursor/mcp.json for Cursor, the equivalent for whichever client.
Eleven tools, four read, seven write.
Read
| Tool | Calls | What it returns |
|---|---|---|
polarity_whoami | GET /api/polarity/whoami | Bound user + scopes. Cheap probe. |
polarity_export | POST /api/polarity/export | Full personal graph as polarity/v1 JSON. |
polarity_get_graph | GET /api/polarity | Graph view, scoped by entity (user, cosmos, polarity). |
polarity_ask | POST /api/polarity/ask | NL question synthesized over the graph. |
Write
| Tool | Calls | What it does |
|---|---|---|
polarity_observe | POST /api/polarity/observe | Freeform observation. Cosmos extracts. |
polarity_record_event | POST /api/polarity/observe (kind=event) | Something happened at a point in time. |
polarity_record_preference | POST /api/polarity/observe (kind=preference) | A like, dislike, working-style rule. |
polarity_capture_turn | POST /api/polarity/capture-turn | Hand a whole user/assistant exchange to cosmos. Pulls every durable observation in one call. Prefer over multiple polarity_observe calls. |
polarity_reconstruct_hours | POST /api/polarity/reconstruct-hours | Persist life-hour receipts onto the skill-map sky (per user only). Use from Cursor/Cosmos IDE after substantive work. |
polarity_dump | POST /api/polarity/dump | Location-anchored short message. |
polarity_checkin | POST /api/polarity/checkin | Check-in at a waypoint. Triggers co-presence detection. |
polarity_declare | POST /api/polarity/declare | Declare future presence at a waypoint. |
The MCP server is one way to write to the graph. Cosmos accepts source pages from anywhere you keep notes, and the MCP read tools see all of it through the same view.
| Source | How it connects | What lands |
|---|---|---|
| iMessage | Local CLI: npx -y @polarity-lab/cosmos-mcp imessage sync. Mac only. Grant Terminal Full Disk Access first. | Conversational turns from chat.db, with text content. People appear as person nodes in your graph, sized by conversation weight, named via your local AddressBook, dated by your real message timestamps. |
| Claude Desktop | Local CLI: npx -y @polarity-lab/cosmos-mcp claude-desktop sync. Reads Claude Code session transcripts at ~/.claude/projects/. | Every Claude Code session becomes a thread node; user and assistant turns land in conversation_turns with full text. Tool-use plumbing is stripped client-side. |
| Shell history | Local CLI: npx -y @polarity-lab/cosmos-mcp shell-history sync. Reads ~/.zsh_history (falls back to bash/fish) with a byte-offset watermark. | Each sync window lands as one source_page keyed by shell-history: , body = newline-joined commands. Trivial commands (ls, cd .., single chars) and consecutive duplicates are filtered client-side. |
| Notion | OAuth at cosmos.polarity-lab.com/connectors. Pick the pages and databases you want shared. | Each Notion page becomes a source_page node, keyed by Notion id, kept fresh by a daily sync. |
| Obsidian | Community plugin: polarity-lab/obsidian-cosmos. Paste your pmk_ key, point at your vault. | Each note becomes a source_page node keyed by vault-relative path. Tags and wikilinks resolve into edges. |
| MCP clients | This package. | Observations, events, preferences, location dumps, check-ins, declarations. |
| Direct API | POST /api/polarity/observe with your key. | Anything you can express as an observation. |
Unchanged pages are skipped server-side, so re-syncing a quiet vault or stable Notion workspace costs almost nothing. The iMessage sync is incremental too, watermarked on the last successful run, so re-running it is a no-op until new messages arrive.
cosmos-mcp ships an imessage subcommand that reads your local Messages database and lands every conversation in your graph.
# default: incremental sync, 90-day window on first run
npx -y @polarity-lab/cosmos-mcp imessage sync
npx -y @polarity-lab/cosmos-mcp imessage sync --backfill
npx -y @polarity-lab/cosmos-mcp imessage sync --since 2024-01-01
npx -y @polarity-lab/cosmos-mcp imessage status
A three-rule slop filter (no-reply senders, short-code numbers, low-volume contacts) keeps the graph clean. Your AddressBook resolves phone numbers and emails into real contact names. The reading is local to your Mac; only the extracted, normalized turns go into your cosmos graph, which is your account.
cosmos-mcp ships a claude-desktop subcommand that watches Claude Code session transcripts and lands each turn in your graph. The desktop chat surface itself stores conversations server-side, so the live, watchable on-disk source is ~/.claude/projects/ / .jsonl.
# default: incremental, watermarked per session
npx -y @polarity-lab/cosmos-mcp claude-desktop sync
npx -y @polarity-lab/cosmos-mcp claude-desktop sync --since 2026-05-01
npx -y @polarity-lab/cosmos-mcp claude-desktop sync --dry-run
npx -y @polarity-lab/cosmos-mcp claude-desktop status
Tool-use blocks, hook plumbing, and sub-agent (sidechain) turns are stripped client-side; only the visible text the user and the assistant exchanged is shipped. Each session id becomes its own thread node, keyed by (user_id, "claude-desktop", session_id).
cosmos-mcp daemon install drops a LaunchAgent that ticks every four hours and runs the browser, iMessage, calendar, claude-desktop, and shell-history syncs back-to-back. The agent fires a signed, notarized Cosmos Sync.app bundle that ships inside the npm package and gets copied into ~/Applications/Cosmos Sync.app at install time.
npx -y @polarity-lab/cosmos-mcp daemon install
After install, grant the bundle Full Disk Access once:
~/Applications/Cosmos Sync.app into the listcosmos-mcp daemon kick to fire a tick nowBrowser sync works without that step. iMessage and Calendar need it because they read TCC-protected SQLite databases on the user side. cosmos-mcp daemon status reports the signing team id, the plist + runner paths, and whether launchd has the agent loaded. cosmos-mcp daemon uninstall removes the plist, runner, and ~/Applications/Cosmos Sync.app.
| Env var | Default | When you set it |
|---|---|---|
COSMOS_URL | https://cosmos.polarity-lab.com | Override the cosmos API endpoint. |
COSMOS_TOKEN | (from keychain) | pmk_... per-user key for CLI subcommands. Takes precedence over the macOS keychain entry. Set this in CI. |
COSMOS_MCP_KEY | (from token file) | pmk_... per-user key. Honored for back-compat. |
COSMOS_USER_ID | (from token file) | Polarity user id. |
COSMOS_SYSTEM_KEY | (unset) | Single-tenant mode. Sends X-System-Key instead of X-MCP-Key. Requires COSMOS_USER_ID. For internal testing before per-user keys are deployed. |
Your AI tools each know fragments of you. They are not allowed to share.
Cosmos is the layer that lets them. You hold the key. The graph is portable.
When you leave, you take the understanding with you.
MIT.